A homogenization and emulsification process for green tea polyphenol essence

Abstract

The present invention discloses a homogenization and emulsification process for green tea polyphenol essence. The green tea polyphenol extract is made into microcapsules, and the green tea polyphenol microcapsules are mixed with a primary oil phase solution. After the primary oil phase solution is mixed with a primary water phase solution, preliminary emulsification is carried out. After the preliminary emulsion is mixed with a secondary oil phase solution, secondary emulsification is carried out to obtain a green tea polyphenol essence, which can form multiple interfaces simultaneously in the emulsification system. The interaction between the interfaces can enhance the stability of the emulsion, reduce the aggregation tendency of green tea polyphenols and caffeine, improve the solubility and dispersibility of active ingredients, enhance the stability and formation ability of the emulsion, and solve the defects of unstable green tea polyphenol emulsion and precipitation caused by supercritical CO2 extraction; through the two emulsification processes, the green tea polyphenol components can be more fully dispersed into the emulsion, making it more uniform and finer, with better stability and not prone to stratification and precipitation.

Description

Technical Field

[0001] The present invention relates to an emulsification process, and in particular to a homogenization emulsification process for green tea polyphenol essence. Background Art

[0002] Green tea polyphenols are an essence component extracted from green tea. It is rich in polyphenolic substances, especially catechin compounds such as EGCG (epigallocatechin gallate), etc. The supercritical CO2 extraction method can efficiently and selectively extract active ingredients such as green tea polyphenols, and no chemical reaction occurs during the extraction process, ensuring the purity and activity of the extract.

[0003] The emulsified essence can fully blend the originally incompatible oily and aqueous components to form a stable emulsion, which can maintain long-term uniformity and ensure the same skin care effect every time it is used. Therefore, emulsifying the essence is a necessary process. During the supercritical CO2 extraction process, due to the changes in temperature and pressure, the molecular structure of green tea polyphenols will undergo slight conformational changes or adjustments in intermolecular interactions, resulting in a lower interfacial tension of green tea polyphenols during emulsification, which will cause the emulsion to layer or break, affecting the stability of the emulsion.

[0004] Caffeine has strong antioxidant ability, can effectively neutralize free radicals, prevent skin aging, and can also protect the skin from environmental pollution and ultraviolet radiation damage, delaying premature skin aging. It is a commonly used ingredient in essence. Green tea polyphenols itself have high surface activity, and after supercritical CO2 extraction, the surface activity will increase. Green tea polyphenols will react with caffeine to produce precipitates, which will affect the feeling during the use of the essence and reduce the active ingredients.

[0005] Therefore, it is necessary to improve the green tea polyphenol essence in the prior art to solve the above problems. Summary of the Invention

[0006] The present invention overcomes the deficiencies of the prior art and provides a homogenization emulsification process for green tea polyphenol essence, aiming to solve the defects of unstable green tea polyphenol emulsion and precipitation caused by supercritical CO2 extraction in the prior art.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a homogenization emulsification process for green tea polyphenol essence, including the following steps:

[0008] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules evenly to obtain a primary oil phase solution;

[0009] S2: Mix water, caffeine, isosorbide dimethyl ether, butanediol, 1,2 - hexanediol, and sodium lauryl sulfate evenly to obtain a primary aqueous solution;

[0010] S3: Drop the primary oil phase solution in S1 into the primary aqueous solution in S2 and perform preliminary emulsification to obtain a preliminary emulsion;

[0011] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer, and sorbitan oleate evenly to obtain a secondary oil phase solution. Add the preliminary emulsion in S3 into the secondary oil phase solution and perform secondary emulsification to obtain a green tea polyphenol essence.

[0012] In a preferred embodiment of the present invention, the preparation process steps of the green tea polyphenol microcapsules in S1 are specifically as follows:

[0013] S11: Dissolve green tea polyphenol extract in water to obtain a green tea polyphenol solution;

[0014] S12: Dissolve sodium alginate in water to obtain a sodium alginate solution;

[0015] S13: Add the green tea polyphenol solution in S11 into the sodium alginate solution in S12, stir evenly to obtain a green tea polyphenol mixture, and drop calcium chloride solution into the green tea polyphenol mixture to form microcapsules;

[0016] S14: Filter and dry the microcapsules in S13 to obtain green tea polyphenol microcapsules.

[0017] In a preferred embodiment of the present invention, the mass ratio between the green tea polyphenol extract and water in the green tea polyphenol solution is 1:20 - 30, the mass ratio between sodium alginate and water in the sodium alginate solution is 1:15 - 20, the mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:3 - 5, the concentration of the calcium chloride solution is 3 - 6%, and the mass ratio between the calcium chloride solution and the green tea polyphenol mixture is 1:6 - 10.

[0018] In a preferred embodiment of the present invention, the mass ratio between cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate, and green tea polyphenol microcapsules in the primary oil phase solution is: 5 - 8:4 - 6:1 - 2:2 - 4:1 - 2.

[0019] In a preferred embodiment of the present invention, the mass ratio between water, caffeine, isosorbide dimethyl ether, butanediol, 1,2 - hexanediol, and sodium lauryl sulfate in the primary aqueous solution is: 55 - 65:0.3 - 0.5:3 - 5:2 - 4:1 - 2:1 - 2.

[0020] In a preferred embodiment of the present invention, the mass ratio between the primary aqueous solution and the primary oil phase solution is: 20 - 30:1.

[0021] In a preferred embodiment of the present invention, the specific process parameters of the preliminary emulsification in S3 are that the stirring speed is 1500 - 2500 revolutions per minute and the emulsification time is 20 - 30 minutes.

[0022] In a preferred embodiment of the present invention, the mass ratio between polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan oleate in the secondary oil phase solution is 3 - 7:2 - 4:1 - 3.

[0023] In a preferred embodiment of the present invention, the mass ratio between the secondary oil phase solution and the preliminary emulsion is 1:15 - 25.

[0024] In a preferred embodiment of the present invention, the specific process parameters of the secondary emulsification in S4 are that the stirring speed is 1000 - 1500 revolutions per minute and the emulsification time is 10 - 15 minutes.

[0025] The present invention solves the defects existing in the background technology, and the present invention has the following beneficial effects:

[0026] (1) The present invention provides a homogenization and emulsification process for green tea polyphenol essence, making microcapsules of green tea polyphenol extract, mixing the green tea polyphenol microcapsules with the primary oil phase solution, mixing the primary oil phase solution with the primary aqueous solution and then carrying out preliminary emulsification, and mixing the preliminary emulsion with the secondary oil phase solution and then carrying out secondary emulsification to obtain a green tea polyphenol essence, which can form multiple interfaces simultaneously in the emulsification system. The interaction between the interfaces can enhance the stability of the emulsion, reduce the aggregation tendency of green tea polyphenols and caffeine. Compared with the green tea polyphenol essence in the prior art, it can improve the solubility and dispersibility of the active ingredients, enhance the stability and formation ability of the emulsion, and solve the defects of unstable green tea polyphenol emulsion and precipitation caused by supercritical CO2 extraction in the prior art.

[0027] (2) In the present invention, through two emulsification processes, components such as green tea polyphenols can be more fully dispersed into the emulsion. The first emulsification usually forms larger emulsion particles, while the second emulsification further refines these particles to make them more uniform and smaller. Compared with the prior art, it can significantly enhance the emulsification effect, make green tea polyphenols better dispersed in the emulsion, have better stability, and can maintain a uniform state for a long time without easy stratification and precipitation.

[0028] (3) In the present invention, green tea polyphenol extract is prepared into green tea polyphenol microcapsules through a microencapsulation process. During the microencapsulation process, green tea polyphenol particles are evenly wrapped inside the wall material, forming a regular microcapsule structure. Compared with the prior art, the particle morphology is more uniform, the distribution is more stable, it can resist the mutual collision and extrusion between particles, and further reduces the risk of stratification and precipitation.

[0029] (4) In the present invention, the combination of the microencapsulation technology and the multiple emulsification technology can form a uniform coating layer on the surface of green tea polyphenols, and at the same time form multiple stable interfaces in the emulsion, enhancing the colloidal stability of the emulsion, effectively preventing the stratification and precipitation of the emulsion. Compared with the prior art, the microencapsulated green tea polyphenols are finer and more uniform in the emulsion, reducing the mutual interaction force between particles, reducing the risk of stratification and precipitation, enhancing the physical and chemical stability of the emulsion, and being able to better resist the interference of external factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0031] Figure 1 It is a flowchart of the method steps of the preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] Many specific details are set forth in the following description in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited by the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Therefore, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0035] As shown Figure 1 in the figure, a homogenizing and emulsifying process for green tea polyphenol essence includes the following steps:

[0036] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and the green tea polyphenol microcapsules in S1 evenly to obtain a primary oil phase solution;

[0037] S2: Mix water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate evenly to obtain a primary water phase solution;

[0038] Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and the green tea polyphenol microcapsules evenly to form a primary oil phase solution, which helps the active ingredients to be evenly dispersed in the oil phase.

[0039] S3: Drop the primary oil phase solution in S1 into the primary water phase solution in S2 and conduct preliminary emulsification to obtain a preliminary emulsion; dropping the primary oil phase solution into the primary water phase solution and conducting preliminary emulsification forms a preliminary emulsion, which helps the active ingredients to be evenly distributed between the oil phase and the water phase.

[0040] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan olivate evenly to obtain a secondary oil phase solution, add the preliminary emulsion in S3 into the secondary oil phase solution and conduct secondary emulsification to obtain a kind of green tea polyphenol essence.

[0041] By adding emulsifiers such as polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan olivate and conducting secondary emulsification, the particle size of the emulsion can be further refined, the fineness and uniformity of the product can be improved. The secondary emulsification process helps to form a more stable emulsion structure and enhance the physical and chemical stability of the product.

[0042] A homogenizing and emulsifying process for green tea polyphenol essence makes the green tea polyphenol extract into microcapsules, mixes the green tea polyphenol microcapsules with the primary oil phase solution, mixes the primary oil phase solution with the primary water phase solution and then conducts preliminary emulsification, mixes the preliminary emulsion with the secondary oil phase solution and then conducts secondary emulsification to obtain a kind of green tea polyphenol essence, which can form multiple interfaces in the emulsification system simultaneously. The interaction between the interfaces can enhance the stability of the emulsion, reduce the aggregation tendency of green tea polyphenols and caffeine, improve the solubility and dispersibility of the active ingredients, enhance the stability and formation ability of the emulsion, and solve the defects of unstable green tea polyphenol emulsion and precipitation caused by supercritical CO2 extraction in the prior art.

[0043] Emulsification in sequence can form an inner and outer double - layer emulsion structure, which can more effectively prevent oil - water separation, improve the stability of the emulsion. The micro - encapsulation technology can form a uniform coating layer on the surface of green tea polyphenols, further improving the particle distribution state. It can make the green tea polyphenols in the emulsion smaller and more uniform, thereby reducing the interaction force between particles and reducing the risk of stratification and precipitation. Through the interaction between the inner and outer double - layer emulsions, the colloidal structure of the emulsion is enhanced. The micro - encapsulation technology further enhances the colloidal stability of the emulsion through the interaction between the coating layer and the emulsion particles. The combination of the two can form a more stable and firm colloidal structure, effectively preventing the stratification and precipitation of the emulsion.

[0044] The preparation process steps of green tea polyphenol micro - capsules in S1 are specifically as follows:

[0045] S11: Dissolve the green tea polyphenol extract in water to obtain a green tea polyphenol solution;

[0046] S12: Dissolve sodium alginate in water to obtain a sodium alginate solution;

[0047] S13: Add the green tea polyphenol solution in S11 to the sodium alginate solution in S12 and stir evenly to obtain a green tea polyphenol mixture, and drop calcium chloride solution into the green tea polyphenol mixture to form micro - capsules;

[0048] S14: Filter and dry the micro - capsules in S13 to obtain green tea polyphenol micro - capsules.

[0049] Prepare green tea polyphenol micro - capsules from green tea polyphenol extract through the micro - encapsulation process; through micro - encapsulation, the controlled release of green tea polyphenol extract can be achieved, enabling it to be slowly released under specific conditions and improving the sustained effect of the product. The micro - encapsulated green tea polyphenol extract can reduce direct contact with the skin, thereby improving the skin feel of the product and reducing irritation and discomfort.

[0050] As an active ingredient, green tea polyphenols are easily affected by environmental factors such as light, heat, humidity, and oxygen, resulting in degradation or deterioration. Through micro - encapsulation, green tea polyphenols can be encapsulated in a stable structure formed by sodium alginate and calcium chloride, thereby effectively isolating the external environment, extending its shelf life, and maintaining its activity. Green tea polyphenol micro - capsules have better dispersibility and solubility, can be more easily mixed evenly with other cosmetic ingredients, and avoid caking or precipitation. At the same time, micro - encapsulated green tea polyphenols can reduce direct contact with the skin, reduce irritation and discomfort, and improve the use experience of the product.

[0051] After sodium alginate is dissolved in water, it can form a viscous colloid with good film-forming ability, which can form a stable microcapsule wall material. After reacting with calcium ions, sodium alginate can quickly gel and form a strong microcapsule structure, effectively encapsulating and protecting the internal active ingredients. As a thickening agent, sodium alginate can increase the viscosity of the system and improve the stability of the microcapsules. Calcium chloride is a commonly used cross-linking agent in the preparation of sodium alginate microcapsules. It can react with the carboxyl groups in sodium alginate to form a stable cross-linked structure, thus fixing the shape and size of the microcapsules.

[0052] The gel formed after the reaction of sodium alginate and calcium chloride has thermal irreversibility, which means that the gel structure will not change during the heating process, thereby enhancing the gel strength of the emulsion. The strong gel strength helps to maintain the structural stability of the emulsion and prevent stratification or precipitation during subsequent processing or storage. The gel structure formed after the reaction of calcium chloride and sodium alginate has a certain strength and can resist external pressure and deformation. This strength helps to maintain the structural integrity of the emulsion during subsequent processing and storage.

[0053] Through two emulsification processes, components such as green tea polyphenols can be more fully dispersed into the emulsion. The first emulsification usually forms larger emulsion particles, while the second emulsification further refines these particles, making them more uniform and smaller. This refining effect can significantly enhance the emulsification effect, enabling components such as green tea polyphenols to be better dispersed in the emulsion. A stable emulsion system has higher colloidal stability and can resist interference from external factors such as changes in temperature, pH value, and ionic strength. This makes the green tea polyphenol emulsion have better stability, be able to maintain a uniform state for a long time, and is not prone to stratification and precipitation.

[0054] The two emulsification processes can reduce the interfacial tension between the oil and water phases and promote the mixing of the oil phase and water phase. At the same time, the emulsifier can adsorb on the particle surface to form a protective film, further enhancing the interaction between the particles. This enhanced interfacial interaction helps to form a more stable and firm emulsion structure, thereby improving the stability of the green tea polyphenol emulsion.

[0055] During the microencapsulation process, green tea polyphenol particles are evenly encapsulated inside the wall material to form a regular microcapsule structure. This structure makes the particle morphology more uniform and the distribution more stable. At the same time, the microcapsule wall material has a certain rigidity and elasticity, which can resist the mutual collision and extrusion between particles, further reducing the risk of stratification and precipitation.

[0056] The emulsifier added during the multiple emulsification processes can reduce the interfacial tension between the oil and water phases and promote the mixing of the oil phase and water phase. The surface of the microencapsulated green tea polyphenol particles is evenly coated, further enhancing the compatibility between the particles and the emulsion system, making the emulsion more stable in terms of physical structure.

[0057] Stearyl alcohol exhibits cationic properties during the emulsification process, while sodium dodecyl sulfate exhibits negative charge properties. There is an electrostatic attraction between them, and this electrostatic interaction enables stearyl alcohol and sodium dodecyl sulfate to form mixed micelles in the droplets, thereby enhancing the surface activity of the system.

[0058] The interfacial film is one of the key factors for the stability of the emulsion, and its strength determines the ability of the emulsion to resist coalescence and rupture. As a non-ionic surfactant, sorbitan oleate can insert into the interfacial film formed by stearyl alcohol and sodium dodecyl sulfate, and enhance the mechanical strength of the film through intermolecular interactions, thereby improving the stability of the emulsion. Sorbitan oleate can act as a non-ionic surfactant to regulate the ionic property of the system, thereby reducing the interfacial tension and improving the stability of the emulsion, effectively avoiding the precipitation problem of the surfactant at the interface, and at the same time enhancing the strength of the interfacial film.

[0059] The combination of multiple-structured emulsions and mixed surfactants can produce a synergistic effect. Multiple-structured emulsions provide a complex phase structure to disperse and stabilize emulsion droplets, while mixed surfactants further improve the stability of the emulsion by enhancing the interfacial film, reducing the surface tension, and reducing charge repulsion. This synergistic effect makes the emulsion more stable and less likely to produce precipitation.

[0060] The mass ratio between the green tea polyphenol extract and water in the green tea polyphenol solution is 1:20 - 30, the mass ratio between sodium alginate and water in the sodium alginate solution is 1:15 - 20, the mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:3 - 5, the concentration of the calcium chloride solution is 3 - 6%, and the mass ratio between the calcium chloride solution and the green tea polyphenol mixture is 1:6 - 10. By precisely controlling the concentrations and ratios of the green tea polyphenol solution, sodium alginate solution, and calcium chloride solution, the uniformity and stability of the composite material during the preparation process can be ensured.

[0061] The mass ratio between cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate, and green tea polyphenol microcapsules in the primary oil phase solution is: 5 - 8:4 - 6:1 - 2:2 - 4:1 - 2. Oil phase components such as cyclopentasiloxane and squalane have good lubricity and stability. They can interact with green tea polyphenol microcapsules to form a more stable emulsion system. And they can fill the voids in the emulsion, reduce the mutual collision and aggregation between particles, thereby improving the stability of the emulsion. By adjusting the ratio of the oil phase components, the viscosity of the emulsion can be regulated. An appropriate viscosity helps to prevent the sedimentation and aggregation of green tea polyphenol particles in the emulsion, thereby reducing the generation of precipitation.

[0062] The mass ratio among water, caffeine, isosorbide dimethyl ether, butanediol, 1,2 - hexanediol and sodium dodecyl sulfate in the primary aqueous solution is: 55 - 65:0.3 - 0.5:3 - 5:2 - 4:1 - 2:1 - 2. Components such as caffeine, isosorbide dimethyl ether, butanediol and 1,2 - hexanediol can regulate the osmotic pressure, viscosity and pH value of the emulsion, thereby enhancing the stability of the emulsion. The aqueous phase components can prevent the aggregation of green tea polyphenol molecules in the emulsion, avoid the formation of large particles, and thus reduce the risk of precipitation. Components such as isosorbide dimethyl ether and butanediol can increase the fluidity of the emulsion, make it easier to handle and store, and reduce the precipitation caused by long - term standing.

[0063] The mass ratio between the primary aqueous solution and the primary oil phase solution is: 20 - 30:1. The aqueous phase can fully encapsulate components such as green tea polyphenols in the oil phase, forming a uniform dispersion system, thereby reducing the mutual collision and aggregation between particles and improving the stability of the emulsion. The presence of sodium dodecyl sulfate in the aqueous phase can reduce the interfacial tension between the oil and water phases and promote the mixing of the oil phase and the aqueous phase. When the content of the aqueous phase is relatively high, the role of the emulsifier is more significant, and it can form finer and more uniform emulsion particles, further enhancing the stability of the emulsion.

[0064] The specific process parameters of the preliminary emulsification in S3 are that the stirring speed is 1500 - 2500 revolutions / min and the emulsification time is 20 - 30 min. This can ensure that the oil phase and the aqueous phase are fully mixed and sheared. The mixing and shearing effects contribute to the formation of finer and more uniform emulsion particles, thereby improving the uniformity and stability of the emulsion. At appropriate stirring speed and emulsification time, components such as green tea polyphenols can be more evenly dispersed in the emulsion, which helps to reduce the interaction and aggregation between particles, and thus reduces the risk of precipitation.

[0065] The mass ratio among polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan oleate in the secondary oil phase solution is 3 - 7:2 - 4:1 - 3. Polysorbate - 20 is an effective emulsifier that can reduce the interfacial tension between the oil and water phases and promote the mixing of the oil phase and the aqueous phase. At this mass ratio, the content of polysorbate - 20 is moderate, which can give full play to its emulsifying effect and form fine and uniform emulsion particles. The PEG / PPG - 17 / 6 copolymer, as a solvent, can dissolve and disperse the components in the oil phase, contributing to the formation of a stable emulsion system. Its content in this mass ratio is also moderate, which helps to balance the viscosity and fluidity of the emulsion. By adjusting the mass ratio of these three components, the particle distribution in the emulsion can be optimized. The fine and uniform particle distribution helps to reduce the interaction and aggregation between particles, and thus reduces the risk of precipitation. The interaction forces between the particles in the emulsion are balanced, contributing to the formation of a stable colloidal dispersion system.

[0066] The mass ratio between the secondary oil phase solution and the preliminary emulsion is 1:15 - 25. At this mass ratio, the proportion of the secondary oil phase solution to the preliminary emulsion is appropriate, which helps to form a more stable emulsion system. An appropriate oil-water ratio can reduce the interaction and aggregation between particles, thereby reducing the risk of emulsion stratification and precipitation. The addition of the secondary oil phase solution can further promote the emulsification process, enabling the oil phase and the water phase to mix more fully. This helps to improve the emulsification efficiency, form finer and more uniform emulsion particles, and further enhance the stability of the emulsion. An appropriate proportion of the secondary oil phase solution can balance the viscosity of the emulsion. An emulsion with a moderate viscosity has better fluidity and stability, which helps to reduce the generation of precipitation.

[0067] The specific process parameters for the secondary emulsification in S4 are that the stirring speed is 1000 - 1500 revolutions per minute and the emulsification time is 10 - 15 minutes. Within the range of 1000 - 1500 revolutions per minute for the stirring speed, it can ensure that the shear force during the emulsification process is moderate, which helps to further refine the oil droplets and water droplets in the preliminary emulsion to form more uniform and finer emulsion particles. With an emulsification time of 10 - 15 minutes, it can ensure that the emulsification process is carried out sufficiently, significantly reducing the interfacial tension between the oil phase and the water phase, thereby forming a stable emulsion system.

[0068] Example 1

[0069] A homogenization and emulsification process for green tea polyphenol essence, comprising the following steps:

[0070] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate, and green tea polyphenol microcapsules evenly to obtain a primary oil phase solution; the preparation process of green tea polyphenol microcapsules is as follows: dissolve green tea polyphenol extract in water to obtain a green tea polyphenol solution, dissolve sodium alginate in water to obtain a sodium alginate solution, add the green tea polyphenol solution to the sodium alginate solution and stir evenly to obtain a green tea polyphenol mixture, and dropwise add calcium chloride solution to the green tea polyphenol mixture to form microcapsules, and filter and dry the microcapsules to obtain green tea polyphenol microcapsules.

[0071] The mass ratio between the green tea polyphenol extract and water in the green tea polyphenol solution is 1:25, the mass ratio between sodium alginate and water in the sodium alginate solution is 1:20, the mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:4, the concentration of the calcium chloride solution is 3%, and the mass ratio between the calcium chloride solution and the green tea polyphenol mixture is 1:8.

[0072] The mass ratio between cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate, and green tea polyphenol microcapsules in the primary oil phase solution is: 6:5:2:3:0.5.

[0073] S2: Mix water, caffeine, isosorbide dimethyl ether, butanediol, 1,2 - hexanediol, and sodium lauryl sulfate evenly to obtain a primary aqueous solution;

[0074] The mass ratio of water, caffeine, isosorbide dimethyl ether, butanediol, 1,2 - hexanediol, and sodium lauryl sulfate in the primary aqueous solution is: 60:0.4:4:3:1.5:1.5.

[0075] S3: Drop the primary oil phase solution in S1 into the primary aqueous solution in S2 and conduct preliminary emulsification to obtain a preliminary emulsion; The specific process parameters of the preliminary emulsification are that the stirring speed is 2000 revolutions / min, the emulsification time is 30 min, and the mass ratio between the primary aqueous solution and the primary oil phase solution is: 25:1.

[0076] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer, and sorbitan oleate evenly to obtain a secondary oil phase solution, add the preliminary emulsion in S3 into the secondary oil phase solution and conduct secondary emulsification to obtain a green tea polyphenol essence.

[0077] The mass ratio of polysorbate - 20, PEG / PPG - 17 / 6 copolymer, and sorbitan oleate in the secondary oil phase solution is 5:3:2. The mass ratio between the secondary oil phase solution and the preliminary emulsion is 1:15. The specific process parameters of the secondary emulsification are that the stirring speed is 1200 revolutions / min and the emulsification time is 15 min.

[0078] Example Two

[0079] A homogenization and emulsification process for green tea polyphenol essence, comprising the following steps:

[0080] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate, and green tea polyphenol microcapsules evenly to obtain a primary oil phase solution; The preparation process of the green tea polyphenol microcapsules is as follows: Dissolve green tea polyphenol extract in water to obtain a green tea polyphenol solution, dissolve sodium alginate in water to obtain a sodium alginate solution, add the green tea polyphenol solution into the sodium alginate solution and stir evenly to obtain a green tea polyphenol mixture, and drop calcium chloride solution into the green tea polyphenol mixture to form microcapsules, and filter and dry the microcapsules to obtain green tea polyphenol microcapsules.

[0081] The mass ratio of green tea polyphenol extract and water in the green tea polyphenol solution is 1:25, the mass ratio of sodium alginate and water in the sodium alginate solution is 1:20, the mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:4, the concentration of the calcium chloride solution is 3%, and the mass ratio between the calcium chloride solution and the green tea polyphenol mixture is 1:8.

[0082] The mass ratio among cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules in the primary oil phase solution is: 6:5:2:3:1.

[0083] S2: Mix water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate evenly to obtain a primary aqueous phase solution;

[0084] The mass ratio among water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate in the primary aqueous phase solution is: 60:0.4:4:3:1.5:1.5.

[0085] S3: Drop the primary oil phase solution in S1 into the primary aqueous phase solution in S2 and conduct preliminary emulsification to obtain a preliminary emulsion; The specific process parameters for preliminary emulsification are that the stirring speed is 2000 revolutions / min, the emulsification time is 30 min, and the mass ratio between the primary aqueous phase solution and the primary oil phase solution is: 25:1.

[0086] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan olivate evenly to obtain a secondary oil phase solution, add the preliminary emulsion in S3 into the secondary oil phase solution and conduct secondary emulsification to obtain a kind of green tea polyphenol essence.

[0087] The mass ratio among polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan olivate in the secondary oil phase solution is 5:3:2. The mass ratio between the secondary oil phase solution and the preliminary emulsion is 1:15. The specific process parameters for secondary emulsification are that the stirring speed is 1200 revolutions / min and the emulsification time is 15 min.

[0088] Example Three

[0089] A homogeneous emulsification process for green tea polyphenol essence, comprising the following steps:

[0090] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules evenly to obtain a primary oil phase solution; The preparation process of green tea polyphenol microcapsules is as follows: Dissolve green tea polyphenol extract in water to obtain a green tea polyphenol solution, dissolve sodium alginate in water to obtain a sodium alginate solution, add the green tea polyphenol solution into the sodium alginate solution and stir evenly to obtain a green tea polyphenol mixture, and drop calcium chloride solution into the green tea polyphenol mixture to form microcapsules, and filter and dry the microcapsules to obtain green tea polyphenol microcapsules.

[0091] The mass ratio between the green tea polyphenol extract and water in the green tea polyphenol solution is 1:25, the mass ratio between sodium alginate and water in the sodium alginate solution is 1:20, the mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:4, the concentration of the calcium chloride solution is 3%, and the mass ratio between the calcium chloride solution and the green tea polyphenol mixture is 1:8.

[0092] The mass ratio among cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules in the primary oil phase solution is: 6:5:2:3:1.5.

[0093] S2: Mix water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate evenly to obtain the primary aqueous phase solution;

[0094] The mass ratio among water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate in the primary aqueous phase solution is: 60:0.4:4:3:1.5:1.5.

[0095] S3: Drop the primary oil phase solution in S1 into the primary aqueous phase solution in S2 and conduct preliminary emulsification to obtain a preliminary emulsion; The specific process parameters of the preliminary emulsification are that the stirring speed is 2000 revolutions per minute, the emulsification time is 30 minutes, and the mass ratio between the primary aqueous phase solution and the primary oil phase solution is: 25:1.

[0096] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan olivate evenly to obtain the secondary oil phase solution, add the preliminary emulsion in S3 into the secondary oil phase solution and conduct secondary emulsification to obtain a kind of green tea polyphenol essence.

[0097] The mass ratio among polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan olivate in the secondary oil phase solution is 5:3:2. The mass ratio between the secondary oil phase solution and the preliminary emulsion is 1:15. The specific process parameters of the secondary emulsification are that the stirring speed is 1200 revolutions per minute and the emulsification time is 15 minutes.

[0098] Example Four

[0099] A homogeneous emulsification process for green tea polyphenol essence, comprising the following steps:

[0100] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate, and green tea polyphenol microcapsules evenly to obtain a primary oil phase solution. The preparation process of the green tea polyphenol microcapsules is as follows: Dissolve green tea polyphenol extract in water to obtain a green tea polyphenol solution, dissolve sodium alginate in water to obtain a sodium alginate solution, add the green tea polyphenol solution to the sodium alginate solution and stir evenly to obtain a green tea polyphenol mixture, and dropwise add a calcium chloride solution to the green tea polyphenol mixture to form microcapsules. Filter and dry the microcapsules to obtain green tea polyphenol microcapsules.

[0101] The mass ratio between the green tea polyphenol extract and water in the green tea polyphenol solution is 1:25. The mass ratio between sodium alginate and water in the sodium alginate solution is 1:20. The mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:4. The concentration of the calcium chloride solution is 3%. The mass ratio between the calcium chloride solution and the green tea polyphenol mixture is 1:8.

[0102] The mass ratio between cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate, and green tea polyphenol microcapsules in the primary oil phase solution is: 6:5:2:3:2.

[0103] S2: Mix water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol, and sodium lauryl sulfate evenly to obtain a primary aqueous phase solution.

[0104] The mass ratio between water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol, and sodium lauryl sulfate in the primary aqueous phase solution is: 60:0.4:4:3:1.5:1.5.

[0105] S3: Drop the primary oil phase solution in S1 into the primary aqueous phase solution in S2 and conduct preliminary emulsification to obtain a preliminary emulsion. The specific process parameters for preliminary emulsification are: the stirring speed is 2000 revolutions per minute, the emulsification time is 30 minutes, and the mass ratio between the primary aqueous phase solution and the primary oil phase solution is: 25:1.

[0106] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer, and sorbitan olivate evenly to obtain a secondary oil phase solution. Add the preliminary emulsion in S3 to the secondary oil phase solution and conduct secondary emulsification to obtain a kind of green tea polyphenol essence.

[0107] The mass ratio between polysorbate - 20, PEG / PPG - 17 / 6 copolymer, and sorbitan olivate in the secondary oil phase solution is 5:3:2. The mass ratio between the secondary oil phase solution and the preliminary emulsion is 1:15. The specific process parameters for secondary emulsification are: the stirring speed is 1200 revolutions per minute, and the emulsification time is 15 minutes.

[0108] Example Five

[0109] A homogenization and emulsification process for green tea polyphenol essence, comprising the following steps:

[0110] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules evenly to obtain a primary oil phase solution; the preparation process of green tea polyphenol microcapsules is as follows: dissolve green tea polyphenol extract in water to obtain a green tea polyphenol solution, dissolve sodium alginate in water to obtain a sodium alginate solution, add the green tea polyphenol solution to the sodium alginate solution and stir evenly to obtain a green tea polyphenol mixture, and dropwise add calcium chloride solution to the green tea polyphenol mixture to form microcapsules, and filter and dry the microcapsules to obtain green tea polyphenol microcapsules.

[0111] The mass ratio between the green tea polyphenol extract and water in the green tea polyphenol solution is 1:25, the mass ratio between sodium alginate and water in the sodium alginate solution is 1:20, the mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:4, the concentration of the calcium chloride solution is 3%, and the mass ratio between the calcium chloride solution and the green tea polyphenol mixture is 1:8.

[0112] The mass ratio between cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules in the primary oil phase solution is: 6:5:2:3:2.5.

[0113] S2: Mix water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate evenly to obtain a primary aqueous phase solution;

[0114] The mass ratio between water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate in the primary aqueous phase solution is: 60:0.4:4:3:1.5:1.5.

[0115] S3: Drop the primary oil phase solution in S1 into the primary aqueous phase solution in S2 and perform preliminary emulsification to obtain a preliminary emulsion; the specific process parameters of the preliminary emulsification are that the stirring speed is 2000 revolutions / min, the emulsification time is 30 min, and the mass ratio between the primary aqueous phase solution and the primary oil phase solution is: 25:1.

[0116] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan olivate evenly to obtain a secondary oil phase solution, add the preliminary emulsion in S3 to the secondary oil phase solution and perform secondary emulsification to obtain a kind of green tea polyphenol essence.

[0117] The mass ratio among polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan oleate in the secondary oil - phase solution is 5:3:2. The mass ratio between the secondary oil - phase solution and the preliminary emulsion is 1:15. The specific process parameters for secondary emulsification are as follows: the stirring speed is 1200 revolutions per minute and the emulsification time is 15 minutes.

[0118] Example Six

[0119] A homogenization and emulsification process for green tea polyphenol essence, comprising the following steps:

[0120] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules evenly to obtain a primary oil - phase solution; the preparation process of green tea polyphenol microcapsules is as follows: dissolve green tea polyphenol extract in water to obtain a green tea polyphenol solution, dissolve sodium alginate in water to obtain a sodium alginate solution, add the green tea polyphenol solution to the sodium alginate solution and stir evenly to obtain a green tea polyphenol mixture, and dropwise add calcium chloride solution to the green tea polyphenol mixture to form microcapsules, and filter and dry the microcapsules to obtain green tea polyphenol microcapsules.

[0121] The mass ratio between green tea polyphenol extract and water in the green tea polyphenol solution is 1:25, the mass ratio between sodium alginate and water in the sodium alginate solution is 1:20, the mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:4, the concentration of the calcium chloride solution is 3%, and the mass ratio between the calcium chloride solution and the green tea polyphenol mixture is 1:8.

[0122] The mass ratio among cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules in the primary oil - phase solution is: 6:5:2:3:1.5.

[0123] S2: Mix water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate evenly to obtain a primary water - phase solution;

[0124] The mass ratio among water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate in the primary water - phase solution is: 60:0.4:4:3:1.5:1.5.

[0125] S3: Drop the primary oil - phase solution in S1 into the primary water - phase solution in S and conduct preliminary emulsification to obtain a preliminary emulsion; the specific process parameters for preliminary emulsification are as follows: the stirring speed is 2000 revolutions per minute, the emulsification time is 30 minutes, and the mass ratio between the primary water - phase solution and the primary oil - phase solution is: 25:1.

[0126] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan oleate evenly to obtain a secondary oil - phase solution. Add the preliminary emulsion in S3 to the secondary oil - phase solution and conduct secondary emulsification to obtain a green tea polyphenol essence.

[0127] The mass ratio of polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan oleate in the secondary oil - phase solution is 5:3:2. The mass ratio of the secondary oil - phase solution to the preliminary emulsion is 1:10. The specific process parameters of secondary emulsification are: the stirring speed is 1200 revolutions per minute and the emulsification time is 15 minutes.

[0128] Example Seven

[0129] A homogeneous emulsification process for a green tea polyphenol essence, comprising the following steps:

[0130] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules evenly to obtain a primary oil - phase solution; The preparation process of green tea polyphenol microcapsules is as follows: Dissolve green tea polyphenol extract in water to obtain a green tea polyphenol solution, dissolve sodium alginate in water to obtain a sodium alginate solution, add the green tea polyphenol solution to the sodium alginate solution and stir evenly to obtain a green tea polyphenol mixture, and drop calcium chloride solution into the green tea polyphenol mixture to form microcapsules. Filter and dry the microcapsules to obtain green tea polyphenol microcapsules.

[0131] The mass ratio of green tea polyphenol extract to water in the green tea polyphenol solution is 1:25, the mass ratio of sodium alginate to water in the sodium alginate solution is 1:20, the mass ratio of the green tea polyphenol solution to the sodium alginate solution is 1:4, the concentration of the calcium chloride solution is 3%, and the mass ratio of the calcium chloride solution to the green tea polyphenol mixture is 1:8.

[0132] The mass ratio of cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules in the primary oil - phase solution is: 6:5:2:3:1.5.

[0133] S2: Mix water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate evenly to obtain a primary water - phase solution;

[0134] The mass ratio of water, caffeine, isosorbide dimethyl ether, butylene glycol, 1,2 - hexanediol and sodium lauryl sulfate in the primary water - phase solution is: 60:0.4:4:3:1.5:1.5.

[0135] S3: Add the primary oil phase solution in S1 dropwise to the primary aqueous phase solution in S2 and perform primary emulsification to obtain a primary emulsion; the specific process parameters for primary emulsification are a stirring speed of 2000 revolutions per minute, an emulsification time of 30 minutes, and a mass ratio between the primary aqueous phase solution and the primary oil phase solution of 25:1.

[0136] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer, and sorbitan oleate evenly to obtain a secondary oil phase solution. Add the primary emulsion in S3 to the secondary oil phase solution and perform secondary emulsification to obtain a green tea polyphenol essence.

[0137] The mass ratio between polysorbate - 20, PEG / PPG - 17 / 6 copolymer, and sorbitan oleate in the secondary oil phase solution is 5:3:2. The mass ratio between the secondary oil phase solution and the primary emulsion is 1:20. The specific process parameters for secondary emulsification are a stirring speed of 1200 revolutions per minute and an emulsification time of 15 minutes.

[0138] Example Eight

[0139] A homogeneous emulsification process for a green tea polyphenol essence, comprising the following steps:

[0140] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate, and green tea polyphenol microcapsules evenly to obtain a primary oil phase solution; the preparation process of the green tea polyphenol microcapsules is as follows: dissolve green tea polyphenol extract in water to obtain a green tea polyphenol solution, dissolve sodium alginate in water to obtain a sodium alginate solution, add the green tea polyphenol solution to the sodium alginate solution and stir evenly to obtain a green tea polyphenol mixture, and dropwise add calcium chloride solution to the green tea polyphenol mixture to form microcapsules. Filter and dry the microcapsules to obtain green tea polyphenol microcapsules.

[0141] The mass ratio between the green tea polyphenol extract and water in the green tea polyphenol solution is 1:25, the mass ratio between sodium alginate and water in the sodium alginate solution is 1:20, the mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:4, the concentration of the calcium chloride solution is 3%, and the mass ratio between the calcium chloride solution and the green tea polyphenol mixture is 1:8.

[0142] The mass ratio between cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate, and green tea polyphenol microcapsules in the primary oil phase solution is 6:5:2:3:1.5.

[0143] S2: Mix water, caffeine, isosorbide dimethyl ether, butanediol, 1,2 - hexanediol, and sodium lauryl sulfate evenly to obtain a primary aqueous phase solution;

[0144] The mass ratio among water, caffeine, isosorbide dimethyl ether, butanediol, 1,2 - hexanediol and sodium dodecyl sulfate in the primary aqueous solution is: 60:0.4:4:3:1.5:1.5.

[0145] S3: Drop the primary oil - phase solution in S2 into the primary aqueous solution and conduct preliminary emulsification to obtain a preliminary emulsion; the specific process parameters for preliminary emulsification are that the stirring speed is 2000 revolutions per minute, the emulsification time is 30 minutes, and the mass ratio between the primary aqueous solution and the primary oil - phase solution is: 25:1.

[0146] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan oleate evenly to obtain a secondary oil - phase solution, add the preliminary emulsion in S3 into the secondary oil - phase solution and conduct secondary emulsification to obtain a green tea polyphenol essence.

[0147] The mass ratio among polysorbate - 20, PEG / PPG - 17 / 6 copolymer and sorbitan oleate in the secondary oil - phase solution is 5:3:2. The mass ratio between the secondary oil - phase solution and the preliminary emulsion is 1:25. The specific process parameters for secondary emulsification are that the stirring speed is 1200 revolutions per minute and the emulsification time is 15 minutes.

[0148] Example Nine

[0149] A homogenization and emulsification process for green tea polyphenol essence, comprising the following steps:

[0150] S1: Mix cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules evenly to obtain a primary oil - phase solution; the preparation process of green tea polyphenol microcapsules is as follows: dissolve green tea polyphenol extract in water to obtain a green tea polyphenol solution, dissolve sodium alginate in water to obtain a sodium alginate solution, add the green tea polyphenol solution into the sodium alginate solution and stir evenly to obtain a green tea polyphenol mixture, and drop calcium chloride solution into the green tea polyphenol mixture to form microcapsules, and filter and dry the microcapsules to obtain green tea polyphenol microcapsules.

[0151] The mass ratio between green tea polyphenol extract and water in the green tea polyphenol solution is 1:25, the mass ratio between sodium alginate and water in the sodium alginate solution is 1:20, the mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:4, the concentration of the calcium chloride solution is 3%, and the mass ratio between the calcium chloride solution and the green tea polyphenol mixture is 1:8.

[0152] The mass ratio among cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olivate and green tea polyphenol microcapsules in the primary oil - phase solution is: 6:5:2:3:1.5.

[0153] S2: Mix water, caffeine, isosorbide dimethyl ether, butanediol, 1,2 - hexanediol, and sodium lauryl sulfate evenly to obtain a primary aqueous solution;

[0154] The mass ratio among water, caffeine, isosorbide dimethyl ether, butanediol, 1,2 - hexanediol, and sodium lauryl sulfate in the primary aqueous solution is: 60:0.4:4:3:1.5:1.5.

[0155] S3: Drop the primary oil - phase solution in S1 into the primary aqueous solution in S2 and conduct preliminary emulsification to obtain a preliminary emulsion; The specific process parameters for preliminary emulsification are that the stirring speed is 2000 revolutions / min, the emulsification time is 30 min, and the mass ratio between the primary aqueous solution and the primary oil - phase solution is: 25:1.

[0156] S4: Mix polysorbate - 20, PEG / PPG - 17 / 6 copolymer, and sorbitan oleate evenly to obtain a secondary oil - phase solution, add the preliminary emulsion in S3 into the secondary oil - phase solution and conduct secondary emulsification to obtain a green tea polyphenol essence.

[0157] The mass ratio among polysorbate - 20, PEG / PPG - 17 / 6 copolymer, and sorbitan oleate in the secondary oil - phase solution is 5:3:2. The mass ratio between the secondary oil - phase solution and the preliminary emulsion is 1:30. The specific process parameters for secondary emulsification are that the stirring speed is 1200 revolutions / min and the emulsification time is 15 min.

[0158] Comparative Example 1

[0159] A homogenization and emulsification process for a green tea polyphenol essence, comprising the following steps:

[0160] S1: Dissolve green tea polyphenol extract, sodium lauryl sulfate, and caffeine in water to obtain a green tea polyphenol solution; The mass ratio of water, green tea polyphenol extract, sodium lauryl sulfate, and caffeine is 60:0.04:1.5:0.4.

[0161] S2: Mix the green tea polyphenol solution and cyclopentasiloxane evenly and conduct emulsification to obtain an emulsion; The mass ratio between the green tea polyphenol solution and cyclopentasiloxane is 25:1, and the specific process parameters for emulsification are that the stirring speed is 2000 revolutions / min and the emulsification time is 30 min.

[0162] Table 1 Models and sources of various materials used in this application

[0163]

[0164] Take samples of equal mass from Examples 1 to 9 and Comparative Example 1. After detecting the initial viscosity, place the samples at 20°C for 30 days and then detect the viscosity of the samples again. Compare it with the initial viscosity to calculate the viscosity change rate. At the same time, separate and test the mass of the solid precipitate of the samples, and compare it with the total mass of the samples to calculate the proportion of the precipitate mass. Use an NDJ-8S digital display viscometer for viscosity detection. The specific situation is shown in Table 2.

[0165] Table 2 Appearance change situations of Examples 1 to 9 and Comparative Example 1

[0166]

[0167] As can be seen from Table 1, the viscosity change rates and the proportions of precipitate mass of Examples 1 to 9 are both smaller than those of Comparative Example 1, indicating the superiority of this application.

[0168] In Examples 1 to 5, as the content of microcapsules in the primary oil phase solution increases, both the viscosity change rate and the proportion of precipitate mass of the emulsified essence first decrease and then increase. This is because microcapsules mainly play a role in stabilizing the emulsion in the emulsification system. As physical barriers, they prevent the aggregation of oil droplets, thereby increasing the stability of the emulsion. When the content of microcapsules is appropriate, they can be evenly dispersed in the oil phase, effectively preventing the aggregation and sedimentation of oil droplets. Therefore, the viscosity change rate and the proportion of precipitate mass of the emulsion will be relatively small. Excessive microcapsules cause the space between oil droplets to become narrow, increasing the chance of collision and aggregation between oil droplets, resulting in a decrease in the stability of the emulsion, and increasing the viscosity change rate and the proportion of precipitate mass. The preferred example is Example 3.

[0169] In Examples 3 and 6 to 9, as the mass ratio between the secondary oil phase solution and the preliminary emulsion increases, both the viscosity change rate and the proportion of precipitate mass of the emulsified essence first decrease and then increase. This is because when the mass ratio of the secondary oil phase solution to the preliminary emulsion increases within a certain range, the components in the secondary oil phase can better act as emulsifiers, helping the oil droplets in the preliminary emulsion to be more evenly dispersed in the water phase. These emulsifiers can significantly reduce the oil-water interfacial tension and enhance the stability of the emulsion, thereby reducing viscosity changes and precipitate generation, and thus reducing the viscosity change rate and the proportion of precipitate mass. Excessive oil phase components will destroy the stable structure already formed in the preliminary emulsion, leading to the re-aggregation and sedimentation of oil droplets, increasing the risk of stratification and precipitation, and increasing the viscosity change rate and the proportion of precipitate mass. The preferred example is Example 7.

[0170] Based on the inspiration of the ideal embodiments of the present invention, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A homogenizing and emulsifying process for green tea polyphenol essence, characterized in that: The following steps are involved: S1: mixing cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olive oil ester and green tea polyphenol microcapsules to obtain a primary oil phase solution; S2: mixing water, caffeine, dimethyl isosorbide, butanediol, 1,2-hexanediol and sodium dodecyl sulfate to obtain a primary aqueous solution; S3: adding the primary oil phase solution in S1 dropwise to the primary water phase solution in S2 and performing preliminary emulsification to obtain a preliminary emulsion; S4: Polysorbate-20, PEG / PPG-17 / 6 copolymer and sorbitan olivate are mixed uniformly to obtain a secondary oil phase solution, and the preliminary emulsion in S3 is added to the secondary oil phase solution and emulsified for a second time to obtain a green tea polyphenol essence.

2. The homogenizing and emulsifying process of green tea polyphenol essence according to claim 1, characterized in that: The specific steps of the preparation process of the green tea polyphenol microcapsules in S1 are: S11: dissolving the green tea polyphenol extract in water to obtain a green tea polyphenol solution; S12: dissolving sodium alginate in water to obtain a sodium alginate solution; S13: adding the green tea polyphenol solution in S11 to the sodium alginate solution in S12 and stirring evenly to obtain a green tea polyphenol mixed solution, and dropping a calcium chloride solution into the green tea polyphenol mixed solution to form microcapsules; S14: filtering and drying the microcapsules in S13 to obtain green tea polyphenol microcapsules.

3. The homogenizing and emulsifying process of green tea polyphenol essence according to claim 2, characterized in that: The mass ratio between the green tea polyphenol extract and water in the green tea polyphenol solution is 1:20-30, the mass ratio between the sodium alginate and water in the sodium alginate solution is 1:15-20, the mass ratio between the green tea polyphenol solution and the sodium alginate solution is 1:3-5, the concentration of the calcium chloride solution is 3-6%, and the mass ratio between the calcium chloride solution and the green tea polyphenol mixed solution is 1:6-10.

4. The homogenizing and emulsifying process of green tea polyphenol essence according to claim 1, characterized in that: The mass ratio of cyclopentasiloxane, squalane, stearyl alcohol, cetearyl olive oil ester and green tea polyphenol microcapsules in the primary oil phase solution is 5-8:4-6:1-2:2-4:1-2.

5. The homogenizing and emulsifying process of green tea polyphenol essence according to claim 1, characterized in that: The mass ratio of water, caffeine, dimethyl isosorbide, butanediol, 1,2-hexanediol and sodium dodecyl sulfate in the primary aqueous phase solution is 55-65:0.3-0.5:3-5:2-4:1-2:1-2.

6. The homogenizing and emulsifying process of green tea polyphenol essence according to claim 1, characterized in that: The mass ratio between the primary water phase solution and the primary oil phase solution is 20-30:

1.

7. The homogenizing and emulsifying process of green tea polyphenol essence according to claim 1, characterized in that: The specific process parameters of the preliminary emulsification in S3 are a stirring speed of 1500-2500 rpm and an emulsification time of 20-30 min.

8. The homogenizing and emulsifying process of green tea polyphenol essence according to claim 1, characterized in that: The mass ratio of polysorbate-20, PEG / PPG-17 / 6 copolymer and sorbitan olivate in the secondary oil phase solution is 3-7:2-4:1-3.

9. The homogenizing and emulsifying process of green tea polyphenol essence according to claim 1, characterized in that: The mass ratio between the secondary oil phase solution and the primary emulsion is 1:15-25.

10. The homogenizing and emulsifying process of green tea polyphenol essence according to claim 1, characterized in that: The specific process parameters of the secondary emulsification in S4 are a stirring speed of 1000-1500 rpm and an emulsification time of 10-15 min.

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