A soothing anti-wrinkle moisturizing emulsion and a method of making the same

Abstract

The application belongs to the technical field of cosmetics, and specifically discloses a soothing anti-wrinkle moisturizing emulsion and a preparation method thereof, which comprises the following components in a mass percentage: 0.02-0.12% of a chelating agent, 4-8% of a humectant, 0.2-0.6% of a thickening agent, 0.5-2% of dragon fruit stem polysaccharide, 5-15% of dragon fruit seed oil, 0.3-1% of tocopheryl acetate, 1-3% of an emulsifier, 0.02-0.1% of rose essential oil, 5-10% of dragon fruit peel extract, 0.3-0.5% of p-hydroxyacetophenone, 0.5-1% of 1,2-hexanediol, 0.02-0.1% of a pH regulator, and the balance of deionized water. The soothing anti-wrinkle moisturizing emulsion of the application adds natural dragon fruit stem polysaccharide, dragon fruit seed oil and dragon fruit peel extract, and the components are green and natural, do not contain essence, pigment and preservative, and are truly safe, effective, mild and non-irritating.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cosmetics, in particular to a soothing anti-wrinkle moisturizing emulsion and a preparation method thereof. BACKGROUND

[0002] Under the wave of sustainable development in various fields around the world, sustainable consumption in the field of cosmetics is also expanding, and the trend of sustainable development of the cosmetics market coexisting with the environment and ecology is becoming a core topic, and more and more consumers begin to screen and choose natural ingredients, green sources, and environmentally friendly skin care products.

[0003] Dragon fruit not only tastes sweet, but also has high nutritional value. It combines the advantages of fruits, flower buds, vegetables, and medicine. It is not only nutritious and unique in function, but also has few pests and diseases, and can grow normally without using any pesticides. Therefore, dragon fruit is a green and environmentally friendly fruit and a health food with certain therapeutic effect. Because the dragon fruit industry chain in China is very large, it has produced a lot of by-products and has not been reasonably utilized. Most of the dragon fruit processing plants only use the pulp of dragon fruit, and the dragon fruit peel, dragon fruit seeds and dragon fruit stems can only be discarded or simply processed into feed.

[0004] In view of this, the present application is proposed. SUMMARY

[0005] The present application provides a soothing anti-wrinkle moisturizing emulsion and a preparation method thereof. The soothing anti-wrinkle moisturizing emulsion of the present application adds natural dragon fruit stem polysaccharide, dragon fruit seed oil and dragon fruit peel extract, and the ingredients are green and natural, do not contain fragrance, pigment and preservative, and truly achieve safety, effectiveness, mildness and non-irritation.

[0006] The present application solves the technical problems by adopting the following technical solutions:

[0007] A soothing anti-wrinkle moisturizing emulsion, comprising the following components in mass percentage: 0.02-0.12% chelating agent, 4-8% moisturizing agent, 0.2-0.6% thickening agent, 0.5-2% dragon fruit stem polysaccharide, 5-15% dragon fruit seed oil, 0.3-1% tocopheryl acetate, 1-3% emulsifier, 0.02-0.1% rose essential oil, 5-10% dragon fruit peel extract, 0.3-0.5% p-hydroxyacetophenone, 0.5-1% 1,2-hexanediol, 0.02-0.1% pH regulator, and the balance is deionized water.

[0008] The pitaya peel contains a large amount of betalains, rich carbohydrates, proteins, anthocyanins, vitamin C, B1, B2, B3, calcium, phosphorus, iron and other minerals, and is rich in nutrients; the pitaya seed contains rich calcium, phosphorus, iron and other minerals, and various enzymes, albumin, arachidonic acid, flavones, flavonoids; the pitaya stem contains various trace elements necessary for human body, and a large amount of plant polysaccharides, vitamins and various phytosterols. In the present application, through a series of purification and extraction operations, the pitaya stem polysaccharides, pitaya seed oil and pitaya peel extract are added to the emulsion system, and under the synergistic effect of the three, the effect of soothing and anti-wrinkle can be achieved.

[0009] The soothing anti-wrinkle moisturizing emulsion of the present application adds the pitaya stem polysaccharides, pitaya seed oil and pitaya peel extract of natural origin, and the components are green and natural, do not contain fragrances, pigments and preservatives, and truly achieve safety and effectiveness, mildness and no irritation.

[0010] The soothing anti-wrinkle moisturizing emulsion of the present application adds the pitaya stem polysaccharides extracted by the ultrasonic-assisted low eutectic solvent method, the traditional organic and inorganic solvents used for polysaccharide extraction generally have problems of long extraction time, large solvent consumption, low extraction efficiency and certain pollution, while the low eutectic solvent, as a new green solvent, has solvent properties that traditional organic solvents do not have. The pitaya seed oil is prepared by the subcritical extraction process, and compared with the traditional "pre-pressing - leaching" processing method, although the oil extraction efficiency reaches more than 95%, the material is treated at high temperature for a long time, the quality is poor, a complex refining process is needed for treatment, the loss of heat-sensitive functional ingredients is large, the effective amino acids of protein are significantly destroyed, and the comprehensive utilization value is seriously affected, while the solvent molecules in the subcritical state have enhanced diffusion performance, accelerated mass transfer speed and significantly improved solubility, and have the advantages of low desolventizing temperature, high extraction efficiency and greatly reduced production cost. The pitaya peel extract is prepared by CO2 supercritical extraction, enzymatic hydrolysis and nanofiltration separation. The whole extraction temperature is not more than 60 degrees, which can not affect the activity of substances such as anthocyanins and vitamin C which are not resistant to high temperature, and can simultaneously intercept components with a relative molecular weight of less than 1000 Da, and the extract within this range of relative molecular weight is more easily absorbed by the skin.

[0011] As a preferred embodiment of the present application, the preparation method of the pitaya stem polysaccharides is as follows:

[0012] (1) The fresh pitaya stem is removed of thorns and the middle fiber bundle is extracted, cut into sections, washed with deionized water, freeze-dried, and pulverized to obtain pitaya stem freeze-dried powder;

[0013] (2) Choline chloride and oxalic acid dihydrate are added to water to prepare a low eutectic aqueous solution with a water content of 60-70%; the molar ratio of choline chloride to oxalic acid dihydrate is 2: (0.8-1.2);

[0014] (3) the pitaya stem freeze-dried powder, the eutectic solution is mixed uniformly according to the ratio of solid to liquid 1g: (20-30) mL, then is placed into a microwave extractor, is extracted at 400-600W power and 70-80 DEG C for 3-6 min, is filtered, and a pitaya stem polysaccharide crude extract is obtained;

[0015] (4) the pitaya stem polysaccharide crude extract is taken, 3.5-4.5 times volume of an ethanol solution is added, is placed for 100-150 min, is centrifuged, the precipitate is collected, is washed with the ethanol solution for 3-4 times, is centrifuged, the precipitate is collected, and a pitaya stem polysaccharide is obtained; the volume concentration of the ethanol solution is 85-98%.

[0016] As a preferred embodiment of the present application, the preparation method of the pitaya seed oil is as follows:

[0017] (1) the pitaya seed is soaked in normal saline at 35-50 DEG C for 10-18 h, is dried, is heated in a microwave extractor at 400-600W power and 110-130 DEG C for 10-20 min, is shelled, is crushed, and a shelled pitaya seed powder is obtained;

[0018] (2) the shelled pitaya seed powder and n-butane are added into a subcritical extraction device at a solid-liquid ratio of 1g: (8-12) mL, are extracted at 35-40 DEG C for 35-40 min, the pressure is reduced to 0.01-0.03 MPa, and are centrifuged, and a pitaya seed oil is obtained.

[0019] As a preferred embodiment of the present application, the preparation method of the pitaya peel extract is as follows:

[0020] (1) the pitaya peel is dried to a water content of less than 1%, is crushed, a pitaya peel powder is obtained, and the pitaya peel powder is put into a supercritical extraction kettle, is extracted, and a pitaya peel extract is obtained;

[0021] (2) a composite enzyme is added into the pitaya peel extract, is enzymolyzed at 45-55 DEG C for 2-6 h, is filtered by a nanofiltration membrane with a molecular weight cut-off of 1000 Da, and a pitaya peel extract is obtained.

[0022] As a preferred embodiment of the present application, the extraction is carried out at 15-20 MPa and at an extraction temperature of 50-60 DEG C, the pressure of separation kettle I is 10-15 MPa and the temperature is 50-60 DEG C, the pressure of separation kettle II is 5-8 MPa and the temperature is 40-50 DEG C, the CO2 flow rate is 80-100 kg / h, and the extraction time is 1-3 h.

[0023] As a preferred embodiment of the present application, the complex enzyme includes endopeptidase, cellulase, hemicellulase and glucoamylase, and the mass ratio of the endopeptidase, cellulase, hemicellulase, glucoamylase and pit extract of pitaya is (0.001-0.005):(0.001-0.005):(0.001-0.005):(0.001-0.005):1.

[0024] As a preferred embodiment of the present application, the humectant includes at least one of glycerin, butylene glycol, sorbitol, xylitol, glycereth-26, hydroxyethyl urea, erythritol, dipropylene glycol.

[0025] As a preferred embodiment of the present application, the thickening agent includes at least one of xanthan gum, sodium alginate, carrageenan, carrageenan, guar gum, acrylates / C 10～30 alkyl alcohol acrylate cross-linked polymer.

[0026] As a preferred embodiment of the present application, the emulsifier includes at least one of cetearyl olivate / sorbitan olivate (trade name OLIVEM 1000), hydrogenated lecithin / phytosteryl, hydrogenated lysolecithin, steareth-2 / steareth-21.

[0027] The chelating agent is EDTA-2Na.

[0028] The pH regulator is sodium hydroxide.

[0029] The present application also provides a preparation method of soothing anti-wrinkle moisturizing emulsion, comprising the following steps:

[0030] Mixing the pitaya seed oil, tocopheryl acetate and emulsifier uniformly at 80-90℃ to obtain an oil phase;

[0031] Mixing the chelating agent, humectant and thickening agent uniformly, then adding pitaya stem polysaccharide and deionized water, stirring and heating to 75-85℃, then adding the oil phase, stirring for 2-8 minutes, then homogenizing, adding rose essential oil, pitaya peel extract, p-hydroxyacetophenone, 1,2-hexanediol and pH regulator when the temperature is cooled to 40-45℃, stirring uniformly to obtain the soothing anti-wrinkle moisturizing emulsion.

[0032] The beneficial effects of the present application are: (1) the soothing anti-wrinkle moisturizing emulsion of the present application adds natural source pitaya stem polysaccharide, pitaya seed oil and pitaya peel extract, the ingredients are green and natural, do not contain essence, pigment and preservative, and truly achieve safety and effectiveness, mildness and no irritation; (2) the pitaya stem polysaccharide, pitaya seed oil and pitaya peel extract are added to the emulsion system, and under the synergistic effect of the three, the soothing anti-wrinkle effect can be achieved, the soothing anti-wrinkle moisturizing emulsion contains rich anthocyanins, phytosterols, flavonoids, flavonoids and water-soluble vitamins, which can play the effects of antioxidant and anti-wrinkle. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are some embodiments but not all embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0034] In the present application, the technical features described in an open way include both the closed technical solutions consisting of the listed features and the open technical solutions containing the listed features.

[0035] In the present application, if no special description is made, the numerical intervals are regarded as continuous and include the minimum value and the maximum value of the range and each value between the minimum value and the maximum value. Further, when multiple ranges are provided to describe a feature or a characteristic, the ranges can be combined. In other words, unless otherwise specified, all the ranges disclosed herein should be understood as including any and all sub-ranges.

[0036] In the present application, the specific dispersion and stirring treatment methods are not particularly limited.

[0037] The reagents or instruments used in the present application are not specified by the manufacturer, and are all conventional products that can be obtained by purchase. The raw materials used in the comparative examples and the raw materials used in the parallel experiments of the examples are the same commercially available products unless otherwise specified.

[0038] The preparation method of the pitaya stem polysaccharide used in the examples and the comparative examples is as follows:

[0039] (1) Take fresh pitaya stems, remove the thorns and extract the middle fiber bundle, cut into small pieces of 3-5 mm, wash with deionized water, and put into a vacuum freeze dryer for freeze-drying, and then crush to obtain pitaya stem freeze-dried powder;

[0040] (2) adding choline chloride and oxalic acid dihydrate into water, shaking well and standing, to prepare a homogeneous and transparent eutectic aqueous solution with a water content of 67%; the molar ratio of choline chloride to oxalic acid dihydrate is 2:1;

[0041] (3) mixing the pitaya stem freeze-dried powder and the eutectic aqueous solution according to a solid-liquid ratio of 1g:24mL, and then placing the mixture into a microwave extractor, and extracting at a power of 500W and a temperature of 75℃ for 4min; after the extraction is completed, the supernatant is absorbed and filtered through a 0.45-μm filter membrane, to obtain a pitaya stem polysaccharide crude extract;

[0042] (4) taking the pitaya stem polysaccharide crude extract, adding 4 times the volume of an ethanol solution, and standing for 120min; centrifuging at a speed of 7000rpm for 20min; washing the precipitate with the ethanol solution for 3 times, and centrifuging at a speed of 7000rpm for 20min; and collecting the precipitate, to obtain pitaya stem polysaccharide; the volume concentration of the ethanol solution is 90%.

[0043] The preparation method of the pitaya seed oil used in the examples and comparative examples is as follows:

[0044] (1) separating pitaya seeds from pitaya pulp, soaking the pitaya seeds in normal saline at 45℃ for 12h, drying, placing the pitaya seeds into a microwave extractor, heating at a power of 500W and a temperature of 120℃ for 15min, and removing the shells to obtain shelled pitaya seeds, and crushing the shelled pitaya seeds with a low-temperature press box to obtain shelled pitaya seed powder;

[0045] (2) adding the shelled pitaya seed powder and n-butane into a subcritical extraction device according to a solid-liquid ratio of 1g:(8-12)mL, extracting at 38℃ for 38min, reducing the pressure to 0.02MPa, and centrifuging at a speed of 7000rpm for 6min, to obtain pitaya seed oil.

[0046] The preparation method of the pitaya peel extract used in the examples and comparative examples is as follows:

[0047] (1) washing pitaya peels, naturally air-drying, and then drying in a vacuum drying box; when the water content is less than 1%, crushing the pitaya peels in a pulverizer to obtain pitaya peel powder; and placing the pitaya peel powder into a supercritical extraction kettle, selecting an extraction pressure of 18Mpa and an extraction temperature of 55℃; selecting a separation kettle I pressure of 12Mpa and a temperature of 55℃, and a separation kettle II pressure of 7Mpa and a temperature of 45℃; selecting a CO2 flow rate of 90kg / h, and an extraction time of 2h, to obtain a pitaya peel extract;

[0048] (2) adding a compound enzyme into the pitaya peel extract, and enzymatically hydrolyzing at 50℃ for 4h; filtering through a roll nanofiltration membrane with a molecular weight cut-off of 1000Da, to obtain a pitaya peel extract.

[0049] The complex enzyme comprises endopeptidase, cellulase, hemicellulase, and glucoamylase, wherein the mass ratio of endopeptidase, cellulase, hemicellulase, glucoamylase, and dragon fruit peel extract is 0.003:0.003:0.003:0.003:1.

[0050] Example 1

[0051] A soothing, anti-wrinkle, and moisturizing lotion comprising the following components by weight percentage: 0.2% acrylates / C 10～30 The formula consists of: 5% glycerol acrylate crosspolymer (Carbopol Ultrez 21, hereinafter the same), 1% butylene glycol, 2% glycerol polyether-26, 0.1% disodium EDTA, 0.5% dragon fruit stem polysaccharide, 6% dragon fruit seed oil, 0.3% tocopheryl acetate, 1% cetearyl alcohol olive oil ester / sorbitan olive oil ester, 1% glyceryl stearate, 0.1% rose essential oil, 10% dragon fruit peel extract, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, and the balance being deionized water.

[0052] The preparation method of the soothing, anti-wrinkle, and moisturizing lotion includes the following steps:

[0053] Dragon fruit seed oil, tocopheryl acetate, cetearyl alcohol olive oil ester / sorbitan olive oil ester, and glyceryl stearate were mixed evenly at 85°C to obtain the oil phase;

[0054] Disodium EDTA, glycerol, butylene glycol, glycerol polyether-26, and acrylates / C 10～30 The alkanol acrylate cross-linked polymer was mixed evenly, and then dragon fruit stem polysaccharide and deionized water were added. After stirring and heating to 80°C, the oil phase was added, and after stirring for 5 minutes, the mixture was homogenized. When the temperature was lowered to 45°C, rose essential oil, dragon fruit peel extract, p-hydroxyacetophenone, 1,2-hexanediol, and sodium hydroxide were added and stirred evenly to obtain a soothing anti-wrinkle moisturizing lotion.

[0055] Example 2

[0056] The difference between Example 2 and Example 1 is that the amount of raw materials used is different, but everything else is the same.

[0057] A soothing, anti-wrinkle, and moisturizing lotion comprising the following components by weight percentage: 0.2% acrylates / C 10～30Alkyl alcohol acrylate crosspolymer, 5% glycerin, 1% butylene glycol, 2% glycereth-26, 0.1% disodium EDTA, 2% dragon fruit stem polysaccharide, 6% dragon fruit seed oil, 0.3% tocopheryl acetate, 1% cetearyl olivate / sorbitan olivate, 1% glyceryl stearate, 0.1% rose essential oil, 5% dragon fruit peel extract, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, the balance deionized water.

[0058] Example 3

[0059] Example 3 is different from example 1 in that the amount of raw materials is different, and the others are the same.

[0060] A soothing anti-wrinkle moisturizing emulsion, comprising the following components in mass percentage: 0.2% acrylate / C 10～30 Alkyl alcohol acrylate crosspolymer, 5% glycerin, 1% butylene glycol, 2% glycereth-26, 0.1% disodium EDTA, 2% dragon fruit stem polysaccharide, 9% dragon fruit seed oil, 0.3% tocopheryl acetate, 2% cetearyl olivate / sorbitan olivate, 1% glyceryl stearate, 0.1% rose essential oil, 8% dragon fruit peel extract, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, the balance deionized water.

[0061] Comparative example 1

[0062] Comparative example 1 is different from example 2 in that comparative example 1 does not contain dragon fruit stem polysaccharide.

[0063] A soothing anti-wrinkle moisturizing emulsion, comprising the following components in mass percentage: 0.2% acrylate / C 10～30 Alkyl alcohol acrylate crosspolymer, 5% glycerin, 1% butylene glycol, 2% glycereth-26, 0.1% disodium EDTA, 6% dragon fruit seed oil, 0.3% tocopheryl acetate, 1% cetearyl olivate / sorbitan olivate, 1% glyceryl stearate, 0.1% rose essential oil, 5% dragon fruit peel extract, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, the balance deionized water.

[0064] Comparative example 2

[0065] Comparative example 2 is different from example 2 in that comparative example 2 does not contain dragon fruit seed oil.

[0066] A soothing anti-wrinkle moisturizing emulsion, comprising the following components in mass percentage: 0.2% acrylate / C 10～30Alkyl alcohol acrylate crosspolymer, 5% glycerin, 1% butylene glycol, 2% glycereth-26, 0.1% disodium EDTA, 2% dragon fruit stem polysaccharide, 0.3% tocopheryl acetate, 1% cetearyl olivate / sorbitan olivate, 1% glyceryl stearate, 0.1% rose essential oil, 5% dragon fruit peel extract, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, the balance deionized water.

[0067] Comparative Example 3

[0068] Comparative Example 3 differs from Example 2 in that Comparative Example 3 does not contain dragon fruit peel extract.

[0069] A soothing anti-wrinkle moisturizing emulsion comprising the following components in mass percentage: 0.2% acrylates / C 10～30 Alkyl alcohol acrylate crosspolymer, 5% glycerin, 1% butylene glycol, 2% glycereth-26, 0.1% disodium EDTA, 2% dragon fruit stem polysaccharide, 6% dragon fruit seed oil, 0.3% tocopheryl acetate, 1% cetearyl olivate / sorbitan olivate, 1% glyceryl stearate, 0.1% rose essential oil, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, the balance deionized water.

[0070] Comparative Example 4

[0071] Comparative Example 4 differs from Example 2 in that Comparative Example 4 does not contain dragon fruit stem polysaccharide (but the total amount of dragon fruit stem polysaccharide, dragon fruit seed oil, and dragon fruit peel extract is the same as Example 2).

[0072] A soothing anti-wrinkle moisturizing emulsion comprising the following components in mass percentage: 0.2% acrylates / C 10～30 Alkyl alcohol acrylate crosspolymer, 5% glycerin, 1% butylene glycol, 2% glycereth-26, 0.1% disodium EDTA, 7% dragon fruit seed oil, 0.3% tocopheryl acetate, 1% cetearyl olivate / sorbitan olivate, 1% glyceryl stearate, 0.1% rose essential oil, 6% dragon fruit peel extract, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, the balance deionized water.

[0073] Comparative Example 5

[0074] Comparative Example 5 differs from Example 2 in that Comparative Example 5 does not contain dragon fruit seed oil (but the total amount of dragon fruit stem polysaccharide, dragon fruit seed oil, and dragon fruit peel extract is the same as Example 2).

[0075] A soothing anti-wrinkle moisturizing emulsion comprising the following components in mass percentage: 0.2% acrylates / C10～30 Alkyl alcohol acrylate crosspolymer, 5% glycerin, 1% butylene glycol, 2% glycereth-26, 0.1% disodium EDTA, 5% dragon fruit stem polysaccharide, 0.3% tocopheryl acetate, 1% cetearyl olivate / sorbitan olivate, 1% glyceryl stearate, 0.1% rose essential oil, 8% dragon fruit peel extract, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, the balance deionized water.

[0076] Comparative Example 6

[0077] Comparative Example 6 differs from Example 2 in that Comparative Example 6 does not contain dragon fruit peel extract (but the total amount of dragon fruit stem polysaccharide, dragon fruit seed oil, and dragon fruit peel extract is the same as in Example 2).

[0078] A soothing anti-wrinkle moisturizing emulsion comprising the following components in mass percentage: 0.2% acrylates / C 10～30 Alkyl alcohol acrylate crosspolymer, 5% glycerin, 1% butylene glycol, 2% glycereth-26, 0.1% disodium EDTA, 4.5 dragon fruit stem polysaccharide, 8.5% dragon fruit seed oil, 0.3% tocopheryl acetate, 1% cetearyl olivate / sorbitan olivate, 1% glyceryl stearate, 0.1% rose essential oil, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, the balance deionized water.

[0079] Comparative Example 7

[0080] Comparative Example 7 differs from Example 2 in that Comparative Example 7 uses an equal amount of tremella polysaccharide to replace dragon fruit stem polysaccharide.

[0081] A soothing anti-wrinkle moisturizing emulsion comprising the following components in mass percentage: 0.2% acrylates / C 10～30 Alkyl alcohol acrylate crosspolymer, 5% glycerin, 1% butylene glycol, 2% glycereth-26, 0.1% disodium EDTA, 2% tremella polysaccharide, 6% dragon fruit seed oil, 0.3% tocopheryl acetate, 1% cetearyl olivate / sorbitan olivate, 1% glyceryl stearate, 0.1% rose essential oil, 5% dragon fruit peel extract, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, the balance deionized water.

[0082] Comparative Example 8

[0083] Comparative Example 8 differs from Example 2 in that Comparative Example 8 uses an equal amount of grape seed oil to replace dragon fruit seed oil.

[0084] A soothing anti-wrinkle moisturizing emulsion comprising the following components in mass percentage: 0.2% acrylates / C 10～30 alkyl acrylate crosspolymer, 5% glycerin, 1% butylene glycol, 2% glycereth-26, 0.1% disodium EDTA, 2% dragon fruit stem polysaccharide, 6% grape seed oil, 0.3% tocopheryl acetate, 1% cetearyl olivate / sorbitan olivate, 1% glyceryl stearate, 0.1% rose essential oil, 5% dragon fruit peel extract, 0.5% p-hydroxyacetophenone, 0.5% 1,2-hexanediol, 0.04% sodium hydroxide, the balance being deionized water.

[0085] Test Example:

[0086] 1. Skin moisture content comparison test:

[0087] Test subjects: 110 volunteers (male to female ratio of 1:1), aged 20-35 years old, in good health. The 110 volunteers were randomly divided into 11 groups, 10 people in each group, and the products of the test examples and the comparative examples were used in the morning and evening respectively (the amount used each time was 3 drops), and the test area was a 2cm x 3cm rectangular area selected at the same part of the forehead.

[0088] Test conditions: 1) indoor environment; 2) no direct sunlight or light; 3) ambient temperature 25±2℃, relative humidity 40%-60%.

[0089] The following tests were conducted after 0.5h of use: the skin moisture tester MDD4-Corneometer CM825 was used for testing, and the average was taken as the skin moisture content before use (denoted as A0); the volunteers then washed their faces with water, and after 0.5h, the skin moisture tester MDD4-Corneometer CM825 was used for testing, and the average was taken as the skin moisture content after 0.5h of use (denoted as A1), and the skin moisture content change rate was calculated as =

(A1-A0) / A0

[0090] The following tests were conducted after one month of use: the Reviscometer RV600 (elastic fiber tissue test probe) of the German CK skin elasticity tester MPA580 was used to measure the test area, and the skin elasticity indexes R2, R5, R7 values of the test area were recorded, and the average was taken as the initial data of the volunteers (the negative pressure was constant at 450mbar during the test process). Continuous use for one month (no other skincare products were used during this period). The test area was measured again, and the skin elasticity indexes R2, R5, R7 values of the test area were recorded, and the average was taken as the final data of the volunteers (the negative pressure was constant at 450mbar during the test process).

[0091] R2 before test is R 2前 , R2 after test is R 2后 , R2 change rate =

(R 2后 -R 2前 ) / R 2前

[0092] R5 before test is R 5前 , R5 after test is R 5后 , R5 change rate =

(R 5后 -R 5前 ) / R 5前

[0093] R7 before test is R 7前 , R7 after test is R 7后 , R7 change rate =

(R 7后 -R 7前 ) / R 7前

[0094] Note:

[0095] The closer the skin elasticity indexes R2, R5 and R7 are to 1, the better the elasticity of the skin.

[0096] R2 = U a / U f ; R5 = U r / U e ; R7 = U r / U f ;

[0097] U f — the maximum stretching amount of the skin;

[0098] U e — the stretching amount of the skin at 0.1 second after constant negative pressure is applied to the skin, which is the stretching amount of the elastic part;

[0099] U r — after the negative pressure is removed, the skin will quickly return to its original state, which is also divided into the elastic part value U r , i.e. the recovery value of the skin and the viscoelastic part value, or the plastic part value, at 0.1 second after the negative pressure is removed;

[0100] U a — the recovery value of the skin from the removal of the negative pressure to the next continuous test of the skin surface with the application of negative pressure.

[0101] Table 1

[0102]

[0103] As can be seen from Table 1, the emulsion has excellent soothing and anti-wrinkle effects, and has wide application prospects, and the dragon fruit stem polysaccharide, dragon fruit seed oil and dragon fruit peel extract have significant synergies.

[0104] It should be finally pointed out that the above examples are for illustrating the technical solutions of the present application but not for limiting the protection scope of the present application, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A soothing anti-wrinkle moisturizing emulsion characterized in that, The composition comprises the following components in percentage by mass: 0.02-0.12% chelating agent, 4-8% humectant, 0.2-0.6% thickening agent, 0.5-2% dragon fruit stem polysaccharide, 5-15% dragon fruit seed oil, 0.3-1% tocopheryl acetate, 1-3% emulsifier, 0.02-0.1% rose essential oil, 5-10% dragon fruit peel extract, 0.3-0.5% p-hydroxyacetophenone, 0.5-1% 1,2-hexanediol, 0.02-0.1% pH regulator, and the balance deionized water; The preparation method of the dragon fruit stem polysaccharide is as follows: (1) fresh dragon fruit stems are removed of spines and the central fiber bundle is extracted, cut into sections, washed with deionized water, freeze-dried, pulverized, and a dragon fruit stem freeze-dried powder is obtained; (2) choline chloride and oxalic acid dihydrate are added to water to prepare a eutectic aqueous solution with a water content of 60-70%; the molar ratio of the choline chloride and the oxalic acid dihydrate is 2:(0.8-1.2); (3) the dragon fruit stem freeze-dried powder and the eutectic aqueous solution are mixed uniformly at a solid-liquid ratio of 1g:(20-30)mL, and then placed in a microwave extractor, and extracted at a power of 400-600W and a temperature of 70-80℃ for 3-6min, and filtered to obtain a crude dragon fruit stem polysaccharide extract; (4) the crude dragon fruit stem polysaccharide extract is added with 3.5-4.5 times the volume of an ethanol solution, and then allowed to stand for 100-150min, and centrifuged, and the precipitate is collected and washed with the ethanol solution for 3-4 times, and then centrifuged, and the precipitate is collected to obtain the dragon fruit stem polysaccharide; the volume concentration of the ethanol solution is 85-98%; The preparation method of the dragon fruit seed oil is as follows: (1) the dragon fruit seeds are soaked in normal saline at 35-50℃ for 10-18h, dried, placed in a microwave extractor, heated at a power of 400-600W and a temperature of 110-130℃ for 10-20min, shelled to obtain shelled dragon fruit seeds, and pulverized to obtain shelled dragon fruit seed powder; (2) the shelled dragon fruit seed powder and n-butane are added to a subcritical extraction device at a solid-liquid ratio of 1g:(8-12)mL, extracted at 35-40℃ for 35-40min, the pressure is reduced to 0.01-0.03MPa, and centrifuged to obtain the dragon fruit seed oil; The preparation method of the dragon fruit peel extract is as follows: (1) the dragon fruit peel is washed clean, naturally air-dried, and then dried in a vacuum drying oven, and when the water content is less than 1%, the dried dragon fruit peel is pulverized in a pulverizer to obtain dragon fruit peel powder, and the dragon fruit peel powder is put into a supercritical extraction kettle, and the extraction pressure is 18Mpa, the extraction temperature is 55℃, the separation kettle I pressure is 12Mpa, the temperature is 55℃, the separation kettle II pressure is 7Mpa, the temperature is 45℃, the CO2 flow rate is 90kg / h, and the extraction time is 2h to obtain a dragon fruit peel extract; (2) a composite enzyme is added to the dragon fruit peel extract, and enzymolysis is carried out at 50℃ for 4h, and the extract is filtered with a roll-type nanofiltration membrane with a molecular weight cut-off of 1000Da to obtain the dragon fruit peel extract; The complex enzyme includes peptide endonuclease, cellulase, hemicellulase and glucoamylase, and the mass ratio of the peptide endonuclease, cellulase, hemicellulase, glucoamylase and pit extract of dragon fruit is (0.001-0.005):(0.001-0.005):(0.001-0.005):(0.001-0.005):

1.

2. The soothing anti-wrinkle moisturizing emulsion of claim 1, wherein, The humectant includes at least one of glycerin, butylene glycol, sorbitol, xylitol, glycereth-26, hydroxyethyl urea, erythritol and dipropylene glycol.

3. The soothing anti-wrinkle moisturizing emulsion of claim 1, wherein, The thickening agent includes at least one of xanthan gum, sodium alginate, carrageenan, carrageenan, guar gum, acrylate / C 10～30 alkyl acrylate crosspolymer.

4. The soothing anti-wrinkle moisturizing emulsion of claim 1, wherein, The emulsifier includes at least one of cetearyl olivate / sorbitan olivate, hydrogenated lecithin / phytosterols, hydrogenated lysolecithin, steareth-2 / steareth-21.

5. The method of preparing the soothing anti-wrinkle moisturizing emulsion according to any one of claims 1 to 4, characterized in that, The method comprises the following steps: Mixing the pit oil of dragon fruit, tocopheryl acetate and emulsifier uniformly at 80-90 DEG C to obtain an oil phase; Mixing the chelating agent, humectant and thickening agent uniformly, then adding the stem polysaccharide of dragon fruit and deionized water, stirring and heating to 75-85 DEG C, then adding the oil phase, stirring for 2-8 minutes, then homogenizing, adding rose essential oil, pit extract of dragon fruit, p-hydroxyacetophenone, 1,2-hexanediol and pH regulator when the temperature is cooled to 40-45 DEG C, stirring uniformly to obtain a soothing anti-wrinkle moisturizing emulsion. The complex enzyme includes peptide endonuclease, cellulase, hemicellulase and glucoamylase, and the mass ratio of the peptide endonuclease, cellulase, hemicellulase, glucoamylase and pit extract of dragon fruit is (0.001-0.005):(0.001-0.005):(0.001-0.005):(0.001-0.005):

1. The humectant includes at least one of glycerin, butylene glycol, sorbitol, xylitol, glycereth-26, hydroxyethyl urea, erythritol and dipropylene glycol. The emulsifier includes at least one of cetearyl olivate / sorbitan olivate, hydrogenated lecithin / phytosterols, hydrogenated lysolecithin, steareth-2 / steareth-21. The method comprises the following steps: Mixing the pit oil of dragon fruit, tocopheryl acetate and emulsifier uniformly at 80-90 DEG C to obtain an oil phase; Mixing the chelating agent, humectant and thickening agent uniformly, then adding the stem polysaccharide of dragon fruit and deionized water, stirring and heating to 75-85 DEG C, then adding the oil phase, stirring for 2-8 minutes, then homogenizing, adding rose essential oil, pit extract of dragon fruit, p-hydroxyacetophenone, 1,2-hexanediol and pH regulator when the temperature is cooled to 40-45 DEG C, stirring uniformly to obtain a soothing anti-wrinkle moisturizing emulsion.

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