Method for refining tobacco extract and application

Abstract

The invention belongs to the field of electronic atomization equipment, and relates to a method for refining a tobacco extract, which comprises the following steps: providing a tobacco extract raw material, preparing a component A solution, preparing a component B solution, preparing a reaction solution and preparing the refined tobacco extract. The invention further relates to atomized liquid and an electronic atomization device. According to the technical scheme provided by the invention, the clarification effect can be greatly accelerated, the clarification time is saved, clarification is simple and rapid, the use amount of the clarification agent is small, the use cost is reduced, the problems of serious carbon deposition, even core pasting and the like easily caused when the tobacco extract is applied to the ceramic core cigarette cartridge are solved, and the method has a good application prospect in the field of atomizers and is worthy of popularization. The phenomena of wall hanging, solid particle sedimentation and the like of the tobacco extract are avoided; and the tobacco extract contains a large amount of aroma components coordinated with tobacco, has the advantages of strong natural feeling, full aroma structure and the like, and has a good application effect in the aspect of improving the quality of tobacco products.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization equipment, and more particularly to a method for refining tobacco extract, an atomized liquid containing tobacco extract prepared by the method for refining tobacco extract, and an electronic atomization device containing tobacco extract or the atomized liquid prepared by the method for refining tobacco extract. BACKGROUND

[0002] With the advent of atomizer products, there are more and more types of atomizers on the market. Some tobacco extracts commonly used on the market, such as tobacco absolute oil, tobacco essential oil, and tobacco extract, are applied to the atomized liquid of electronic atomizers. These tobacco extracts need to be refined. Commonly used methods are solvent heating and alcohol precipitation. The extract obtained by solvent heating has high viscosity, poor state, more macromolecular components, and more impurities. When it is applied to the atomized liquid of electronic cigarettes, it widely exists problems such as poor solubility, insufficient tobacco characteristic aroma, single smoking experience, and easy to cause serious carbon deposition of electronic cigarette ceramic core and even burnt core.

[0003] The alcohol precipitation method uses the characteristics that the effective components in the extract can be dissolved in ethanol, while the impurities are insoluble in ethanol. After adding ethanol, the effective components are dissolved in ethanol, and the impurities are precipitated, thereby removing the impurities and retaining the tobacco aroma effective components. However, this method also has many shortcomings, such as long processing time, low selectivity, high loss of effective components, low product yield, and large amount of ethanol used.

[0004] Therefore, the existing processing method cannot meet our needs. SUMMARY

[0005] The technical problem to be solved by the embodiments of the present application is that the existing processing of tobacco extract has the problems of long processing time, low selectivity, high loss of effective components, low product yield, and large amount of ethanol used. After processing, there are many impurities, which are widely used in the atomized liquid of electronic cigarettes, and have the problems of poor solubility, insufficient tobacco characteristic aroma, single smoking experience, and easy to cause serious carbon deposition of electronic cigarette ceramic core and even burnt core.

[0006] To solve the above technical problems, the embodiments of the present application provide a method for refining tobacco extract, which adopts the following technical solution: comprising the following steps:

[0007] A tobacco extract raw material is provided, and the tobacco extract raw material is diluted with an alcohol solvent to obtain a diluted solution after mixing uniformly; wherein the alcohol solvent includes propylene glycol;

[0008] The A component solution is configured: the clarifying agent A component is swelled with deionized water and stirred into a paste, diluted, and the A component solution is obtained;

[0009] Preparation of B component solution: the clarifier B component is swelled with 0.1wt%~1wt% organic weak acid solvent and stirred into paste, diluted to obtain the B component solution;

[0010] Preparation of reaction liquid: the B component solution is first added into the dilution, stirred, then the A component solution is added, stirred and settled to obtain the reaction liquid containing flocculation;

[0011] Preparation of refined tobacco extract: the reaction liquid is filtered to remove the flocculation and obtain the refined tobacco extract.

[0012] Further, the mass ratio of the alcohol solvent to the tobacco extract raw material is (9~19):1.

[0013] Further, in the step of preparation of A component solution: the concentration of the A component solution is 0.5~1wt%; and the swelling time is 10~12h.

[0014] Further, in the step of preparation of B component solution: the concentration of the B component solution is 1~2wt%; and the swelling time is 10~12h.

[0015] Further, in the step of preparation of B component solution: the organic weak acid solvent comprises citric acid aqueous solution.

[0016] Further, in the step of preparation of reaction liquid: the mass ratio of the A component solution to the dilution is (0.04~0.05):1; and / or,

[0017] The stirring speed is 10~20rpm, the stirring time is 30~60min, and the stirring temperature is 40~60℃.

[0018] Further, in the step of preparation of reaction liquid: the mass ratio of the B component solution to the dilution is (0.08~0.1):1; and / or,

[0019] The stirring speed is 10~20rpm, the stirring time is 10~30min, and the stirring temperature is 40~60℃.

[0020] Further, in the step of preparation of reaction liquid: the settling temperature is 0~4℃, and the settling time is 1~24h.

[0021] Further, in the step of preparation of refined tobacco extract: the mesh number of the filter cloth for removing the flocculation is 1000~1500.

[0022] Further, the tobacco extract raw material comprises one of Yunchen pure oil, sun-cured tobacco extract, burley tobacco extract, and Turkish tobacco extract.

[0023] To address the aforementioned technical problems, this application also provides an atomizing liquid, employing the following technical solution: the atomizing liquid comprises an atomizing liquid solvent and a tobacco extract obtained by the method for refining tobacco extract.

[0024] To address the aforementioned technical problems, this application also provides an electronic atomizing device, which employs the following technical solution: it includes an oil cup containing a tobacco extract prepared by the method for refining tobacco extract or containing the atomizing liquid.

[0025] Compared with the prior art, the embodiments of this application have the following main advantages:

[0026] This invention uses a two-component clarifying agent, A and B, employing a "1+1" clarification technology. One component acts as the primary flocculator, while the other acts as a secondary flocculator. The combined action of components A and B significantly accelerates the clarification process, saves time, and makes clarification simple and quick. The reduced use of clarifying agent lowers costs. Clarification removes high-boiling-point proteins, tannins, gums, and other macromolecular components, solving problems such as severe carbon buildup and even burnt cores that often occur when tobacco extracts are used in ceramic-core tobacco cartridges. It has promising applications in the atomizer field. Compared to traditional alcohol precipitation and solvent heating methods, it is more efficient, simpler, more economical, environmentally friendly, and lower in cost. Furthermore, the treated tobacco extract is a clear, transparent liquid with good solubility in propylene glycol (PG) and glycerol (VG), without wall adhesion or solid particle sedimentation. The tobacco extract also contains a large number of aroma components that harmonize with tobacco, possessing advantages such as a strong natural aroma and a full-bodied structure, demonstrating excellent application effects in improving the quality of tobacco products. Attached Figure Description

[0027] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a flowchart of a method for refining tobacco extract;

[0029] Figure 2 This is a carbon buildup diagram after the core paste test in Example 1;

[0030] Figure 3 This is a carbon buildup diagram after the core paste test in Example 2;

[0031] Figure 4 This is a graph of carbon buildup after the core paste test in Example 3;

[0032] Figure 5 This is a carbon buildup diagram after the core paste test in Example 4. Detailed Implementation

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0034] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0036] Please see Figure 1 As shown, a method for refining tobacco extract includes the following steps:

[0037] S100: Provide tobacco extract raw material, dilute the tobacco extract raw material with an alcohol solvent, mix evenly to obtain a diluted solution; wherein, the alcohol solvent includes propylene glycol;

[0038] S200: Preparation of component A solution: Add deionized water to clarifying agent component A to swell and stir into a paste, then dilute to obtain the component A solution;

[0039] S300: Preparation of component B solution: The clarifying agent component B is swollen with 0.1wt% to 1wt% of organic weak acid solvent and stirred into a paste, then diluted to obtain the component B solution;

[0040] S400: Preparation of reaction solution: First, add the B component solution to the diluted solution and stir. Then, add the A component solution, stir, and let it stand to settle to obtain a reaction solution containing flocculent matter.

[0041] S500: Preparation of refined tobacco extract: Filter the reaction solution to remove the flocculent material and obtain refined tobacco extract.

[0042] This invention uses a two-component clarifying agent, A and B, employing a "1+1" clarification technology. One component acts as the primary flocculator, while the other acts as a secondary flocculator. The combined action of components A and B significantly accelerates the clarification process, saves time, and makes clarification simple and quick. The reduced use of clarifying agent lowers costs. Clarification removes high-boiling-point proteins, tannins, gums, and other macromolecular components, solving problems such as severe carbon buildup and even burnt cores that often occur when tobacco extracts are used in ceramic-core tobacco cartridges. It has promising applications in the atomizer field. Compared to traditional alcohol precipitation and solvent heating methods, it is more efficient, simpler, more economical, environmentally friendly, and lower in cost. Furthermore, the treated tobacco extract is a clear, transparent liquid with good solubility in propylene glycol (PG) and glycerol (VG), without wall adhesion or solid particle sedimentation. The tobacco extract also contains a large number of aroma components that harmonize with tobacco, possessing advantages such as a strong natural aroma and a full-bodied structure, demonstrating excellent application effects in improving the quality of tobacco products.

[0043] Furthermore, the clarifying agent in this application is the ZTC-II type (solid dosage form and granular dosage form) clarifying agent from Wuhan Zhengtiancheng Biotechnology Co., Ltd. The ZTC-II type natural clarifying agent is composed of two components, A and B. It is a natural polymer extracted from food and belongs to a non-toxic and harmless strong cationic natural polymer coagulant. The clarifying agent causes flocculation and sedimentation of colloidal impurities in the solution through the dual effects of charge neutralization and bonding bridging. On the one hand, the clarifying agent uses its own large amount of positive charge to interact with the negative charge of suspended particles and colloids, reducing the surface charge of suspended particles and colloids, causing them to coagulate and destabilize. On the other hand, flocculation is generated by the bonding bridging effect of polymer chains. It can thoroughly remove tannins, proteins, oils, suspended solids impurities, and unstable impurities in the solution system of tobacco extracts, but it does not affect polysaccharides, peptides, amino acids, and other components. It is 2-5 times faster than traditional clarification processes and has the advantages of high safety, no residue, and non-toxicity. Furthermore, the method for refining tobacco extract in this application only requires diluting the raw materials and preparing the clarifying agent for clarification treatment. After sedimentation, the diluted solution is separated to obtain the tobacco extract. In contrast, the existing technology requires first extracting the solid raw materials to obtain an extract, then concentrating the extract to obtain a concentrate, and then preparing the clarifying agent. Before clarification, the concentrate also needs to be pretreated, and after clarification, it needs to be separated to obtain a purified solution. Therefore, compared with the complex process of the existing technology, the refining method of this application has fewer steps, is simple and fast, has high selectivity, is economical and environmentally friendly, and can quickly clarify the raw materials.

[0044] Furthermore, in this application, there is no strict order in which the tobacco extract raw materials are provided, the component A solution is prepared, and the component B solution is prepared. The process can be carried out in the order described above, or in the following order: providing tobacco extract raw materials - preparing component B solution - preparing component A solution, preparing component B solution - preparing component A solution - providing tobacco extract raw materials, preparing component B solution - providing tobacco extract raw materials - preparing component A solution, preparing component A solution - preparing component B solution - providing tobacco extract raw materials, preparing component A solution - providing tobacco extract raw materials - preparing component B solution, etc., followed by the preparation of the reaction solution and the preparation of the refined tobacco extract.

[0045] Furthermore, the mass ratio of the alcohol solvent to the tobacco extract raw material is (9-19):1. The alcohol solvent can dissolve the refined tobacco extract, which is crucial for the flavor delivery of the atomizer. At the same time, propylene glycol can produce less mist when heated, which helps to form the aerosol required by the atomizer. Propylene glycol can also provide a certain "throat hit", allowing the atomizer to mimic the experience of traditional tobacco inhalation.

[0046] It is understood that the mass ratio of the alcohol solvent to the tobacco extract raw material is any value or any two values ​​of 9:1, 10:1, 11:1, 12:1, 13:1, 14:1, 15:1, 16:1, 17:1, 18:1, 19:1.

[0047] Further, in the step of preparing the A component solution: the concentration of the A component solution is 0.5-1 wt%; the swelling time is 10-12 h. In the prior art, the mass ratio of clarifying agent A component to solvent is usually 1:5, while the concentration of the A component solution in this application is 0.5-1 wt%. Compared with the prior art, the amount of clarifying agent A component used in this application is greatly reduced. The less clarifying agent used reduces the cost, and the reduction in usage does not affect the role of the clarifying agent in this application. This solves the problems of severe carbon buildup or even core clogging that are easily caused when tobacco extract is applied to ceramic core tobacco cartridges. The treated tobacco extract is a clear and transparent liquid with good solubility in propylene glycol (PG) and glycerol (VG), and there will be no wall adhesion or solid particle sedimentation. In addition, the tobacco extract contains a large number of aroma components that are coordinated with tobacco, and has the advantages of strong natural aroma and full aroma structure, which has a good application effect in improving the quality of tobacco products.

[0048] Further, in the step of preparing the component B solution: the concentration of the component B solution is 1-2 wt%; the swelling time is 10-12 h. In the prior art, the mass ratio of clarifying agent component B to solvent is usually 1:5. In this application, the concentration of component B solution is 1-2 wt%. Compared with the prior art, the amount of clarifying agent component B used in this application is greatly reduced. The less clarifying agent used reduces the cost, and the reduction in usage does not affect the role of the clarifying agent in this application. This solves the problems of severe carbon buildup or even burnt core that are easily caused when tobacco extract is applied to ceramic core tobacco cartridges. The treated tobacco extract is a clear and transparent liquid with good solubility in propylene glycol (PG) and glycerol (VG), and there will be no wall adhesion or solid particle sedimentation. In addition, the tobacco extract contains a large number of aroma components that are coordinated with tobacco, and has the advantages of strong natural aroma and full aroma structure, which has a good application effect in improving the quality of tobacco products.

[0049] It is understood that the concentration of the component A solution is any value or any two values ​​formed by 0.5wt%, 0.6wt%, 0.7wt%, 0.8wt%, 0.9wt%, and 1wt%, and the concentration of the component B solution is any value or any two values ​​formed by 1wt%, 1.1wt%, 1.2wt%, 1.3wt%, 1.4wt%, 1.5wt%, 1.6wt%, 1.7wt%, 1.8wt%, 1.9wt%, and 2wt%, and the swelling times of the component A solution and the component B solution are any value or any two values ​​formed by 10h, 11h, and 12h, respectively.

[0050] Furthermore, in the step of preparing the component B solution: the organic weak acid solvent includes an aqueous citric acid solution. The aqueous citric acid solution, upon swelling, can effectively penetrate into the clarifying agent component B. Swelling exposes the active sites of the clarifying agent more, increasing its contact opportunities with the target substance and accelerating the reaction rate with impurities in the solution, thereby enhancing the clarification effect. The swollen clarifying agent exhibits better dispersibility in both the aqueous citric acid solution and deionized water, facilitating more uniform treatment of the diluted solution and avoiding localized over-reaction or precipitation.

[0051] Furthermore, in the steps of preparing solutions for components A and B, the solutions are prepared at room temperature. It is understood that the concentration of the organic weak acid solvent is any value or a range formed by any two of the following: 0.1wt%, 0.2wt%, 0.3wt%, 0.4wt%, 0.5wt%, 0.6wt%, 0.7wt%, 0.8wt%, 0.9wt%, and 1wt%.

[0052] Further, in the step of preparing the reaction solution, the mass ratio of component A solution to diluent is (0.04–0.05):1; and / or,

[0053] The stirring speed is 10-20 rpm, the stirring time is 30-60 min, and the stirring temperature is 40-60℃.

[0054] In the prior art, clarifying agent component A is typically prepared as a viscous solution, and during clarification treatment, the viscous solution is added at a mass ratio to a final concentration of 500-1000 ppm. However, in this application, the mass ratio of component A solution to diluent is (0.04-0.05):1. Compared to the prior art, the amount of clarifying agent component A used in this application is significantly reduced, lowering the cost. This reduction in usage does not affect the clarifying agent's effectiveness. Furthermore, the viscosity of viscous solutions in the prior art is typically high, which may limit the settling velocity of solid particles. In contrast, this application uses a solution of component A with lower viscosity, which facilitates the settling and separation of solid particles, making clarification easier. The solution also has lower viscosity and better flowability, potentially making subsequent processing or analysis easier. It is understood that the mass ratio of component A solution to diluent is any value or a range formed by any two of the values ​​0.04:1 and 0.05:1.

[0055] Further, in the step of preparing the reaction solution, the mass ratio of the B component solution to the diluent is (0.08–0.1):1; and / or,

[0056] The stirring speed is 10-20 rpm, the stirring time is 10-30 min, and the stirring temperature is 40-60℃.

[0057] In the prior art, clarifying agent component B is typically prepared as a viscous solution, and during clarification treatment, the viscous solution is added at a mass ratio to a final concentration of 500-1000 ppm. However, in this application, the mass ratio of component B solution to diluent is (0.08-0.1):1. Compared to the prior art, the amount of clarifying agent component B used in this application is significantly reduced, lowering the cost. This reduction in usage does not affect the clarifying agent's effectiveness. Furthermore, the viscosity of viscous solutions in the prior art is typically high, which may limit the settling velocity of solid particles. In contrast, this application uses a solution of component B with lower viscosity, which facilitates the settling and separation of solid particles, making clarification easier. The solution also has lower viscosity and better flowability, potentially making subsequent processing or analysis easier. It is understood that the mass ratio of component A solution to diluent is any value or a range formed by any two of the values ​​0.04:1 and 0.05:1. It is understood that the mass ratio of component B solution to diluent is any one of 0.08:1, 0.09:1, 0.1:1, or any two of these values.

[0058] Furthermore, in preparing the reaction solution, the diluted solution needs to be placed on a thermostatically heated magnetic stirrer to stir and heat the diluted solution into which component B and component A solutions are added sequentially. It can be understood that the stirring speed is within the range of any one or any two of the following values: 10 rpm, 11 rpm, 12 rpm, 13 rpm, 14 rpm, 15 rpm, 16 rpm, 17 rpm, 18 rpm, 19 rpm, and 20 rpm. The stirring temperature is any value or any two of the following: 40℃, 41℃, 42℃, 43℃, 44℃, 45℃, 46℃, 47℃, 48℃, 49℃, 50℃, 51℃, 52℃, 53℃, 54℃, 55℃, 56℃, 57℃, 58℃, 59℃, and 60℃. The stirring time of the A component solution and the diluent is any value or any two of the following: 30min, 40min, 50min, and 60min. The stirring time of the B component solution and the diluent is any value or any two of the following: 10min, 20min, and 30min.

[0059] Furthermore, in the reaction solution prepared in the steps, the settling temperature is 0–4°C, and the settling time is 1–24 h. Under low-temperature conditions, the movement of suspended particles slows down, which helps the particles to collide and aggregate, forming larger flocculent precipitates. At the same time, the settling speed of the flocculent precipitates increases with the increase of particle size, which helps to improve the efficiency of the entire treatment process. The formed flocculent precipitates are larger and easier to remove from the liquid by filtration or separation technology, simplifying subsequent treatment. Moreover, by utilizing the low-temperature environment to promote natural settling, the amount of chemicals such as clarifying agents A and B components can be reduced, further reducing treatment costs.

[0060] Furthermore, placing the reaction solution in a refrigerator during the settling process effectively maintains low temperatures and improves the efficiency of the entire process. This means that the settling temperature is any value or any two of the following: 0, 1℃, 2℃, 3℃, 4℃, and the settling time is any value or any two of the following: 1h, 2h, 3h, 4h, 5h, 6h, 7h, 8h, 9h, 10h, 11h, 12h, 13h, 14h, 15h, 16h, 17h, 18h, 19h, 20h, 21h, 22h, 23h, 24h.

[0061] Furthermore, in the step of preparing the refined tobacco extract: the mesh size of the filter cloth used to remove the flocculent matter is 1000-1500 mesh. The filter cloth can effectively intercept flocculent matter of a specified size, thereby quickly removing the flocculent matter from the reaction solution and achieving precise separation of the flocculent matter. Using filter cloth filtration reduces the need for chemical treatment, and the filter cloth can also be washed and reused, further reducing chemical residues and processing costs. Moreover, other methods for filtering oily liquids can also be used to remove the flocculent matter. It is understood that the mesh size of the filter cloth is any value or any two values ​​formed by 1000 mesh, 1100 mesh, 1200 mesh, 1300 mesh, 1400 mesh, and 1500 mesh.

[0062] Furthermore, the tobacco extract raw materials include one of Yunnan tobacco puree, sun-cured tobacco extract, Burley tobacco extract, and Turkish tobacco extract. Yunnan tobacco puree refers to tobacco oil obtained through extraction and purification processes, used in tobacco products to enhance aroma and improve taste. Sun-cured tobacco extract is made by extracting its components by soaking tobacco leaves in a liquid; this extract can be used in tobacco products to enhance aroma and improve the combustion characteristics of the tobacco leaves. Burley tobacco is a tobacco variety whose extracts may contain specific chemical components that can be used in tobacco products to provide specific flavors or improve certain properties of the tobacco. Turkish tobacco is known for its unique flavor and aroma; its extracts are commonly used to enhance the aroma of tobacco products, especially in certain types of tobacco products such as certain types of cigarettes and cigars. These extracts and extracts, due to their high content of aroma-enhancing components that harmonize with tobacco and their natural, full-bodied aroma structure, can increase product diversity and appeal when applied to tobacco products. They can also influence the chemical composition and sensory characteristics of tobacco products, demonstrating good application effects in improving the quality of tobacco products.

[0063] Based on the above-mentioned refined tobacco extract, this application embodiment also provides an atomizing liquid, which adopts the following technical solution: the atomizing liquid comprises an atomizing liquid solvent and a tobacco extract obtained by the method of refining the tobacco extract.

[0064] The clarification process removes some high-boiling-point proteins, tannins, gums, and other macromolecular components from tobacco extracts, solving problems such as severe carbon buildup and even burnt cores that are common when tobacco extracts are used in ceramic-core cartridges. This process shows promising application prospects in the atomizer field, offering greater efficiency, simplicity, economy, environmental friendliness, and lower cost compared to traditional alcohol precipitation methods. Furthermore, the treated tobacco extract is a clear, transparent liquid with good solubility in propylene glycol (PG) and glycerol (VG), preventing issues like residue buildup or solid particle sedimentation. It also contains a large number of aroma-enhancing components that harmonize with tobacco, possessing a strong natural aroma and a full-bodied structure, demonstrating excellent application effects in improving the quality of tobacco products.

[0065] Furthermore, the atomizing liquid solvent includes propylene glycol and glycerin, with 1 part refined tobacco extract and 2 parts atomizing liquid solvent. During preparation, the refined tobacco extract is added at a ratio of 2% to a solvent containing propylene glycol and glycerin in a 1:1 mass ratio to obtain the atomizing liquid. This results in the atomizing liquid containing a large amount of aroma components that harmonize with tobacco, and possessing advantages such as a strong natural aroma and a full-bodied structure. It has shown good application effects in improving the quality of tobacco products, as shown in the attached figure. Figure 2 To be continued Figure 5 As shown, the atomizing liquid produces less carbon buildup when atomized into an aerosol, thus extending the service life of the atomizing device.

[0066] Based on the above-mentioned refined tobacco extract and atomizing liquid, this application embodiment also provides an electronic atomizing device, which adopts the following technical solution: including an oil cup, wherein the oil cup contains tobacco extract obtained by the method of refining tobacco extract or contains the atomizing liquid.

[0067] Because the clarification process removes some high-boiling-point proteins, tannins, gums, and other macromolecular components from tobacco extract, electronic atomizing devices using tobacco extract or the atomizing liquid prepared by the aforementioned refined tobacco extract method exhibit less carbon buildup, no burnt taste even after prolonged inhalation, and no burnt ceramic core, thus extending the lifespan of the atomizing device. This solves the problems of severe carbon buildup and even burnt core that easily occur when tobacco extract is used in ceramic core cartridges in electronic atomizing devices, demonstrating promising application prospects in the atomizer field. Furthermore, tobacco extract is a clear and transparent liquid with good solubility in propylene glycol (PG) and glycerol (VG), preventing issues such as residue buildup or solid particle sedimentation. Moreover, tobacco extract contains a large number of aroma-enhancing components that harmonize with tobacco, possessing advantages such as a strong natural aroma and a full-bodied structure, resulting in excellent application effects in improving the quality of tobacco products.

[0068] The preparation method of the ceramic atomizing core of this application will be specifically described below through specific embodiments. The following embodiments are only some embodiments of this application. It should be understood that the protection scope of this invention is not limited to the specific specific implementation schemes described below. It should also be understood that the terminology used in the embodiments of this invention is for describing specific specific implementation schemes, and not for limiting the protection scope of this invention.

[0069] Example 1

[0070] 1. Weigh 1g of clarifying agent A into a beaker, add 99g of deionized water, and let it swell for 12 hours to obtain a solution of component A for later use.

[0071] Weigh 2g of clarifying agent B into a beaker, add 98g of 1wt% citric acid aqueous solution, and allow it to swell for 12 hours to obtain a solution of component B for later use.

[0072] 2. Weigh 10g of Yunyan pure oil and put it into a reaction bottle. Add 90g of propylene glycol and mix well to obtain a diluted Yunyan pure oil solution.

[0073] 3. Place the reaction flask in a constant temperature heating magnetic stirrer, set the temperature to 60℃, add 8g of component B solution to the reaction flask, and stir for 30min at a rotor speed of 20rpm.

[0074] Add another 4g of component A solution to the reaction flask, and stir for 1 hour at a rotor speed of 20 rpm.

[0075] After stirring, remove the reaction flask and allow it to cool to room temperature before placing it in a 4°C refrigerator overnight to settle.

[0076] 4. After sedimentation, a large amount of flocculent material is produced in the reaction flask. Filtering with a 1000-mesh filter cloth yields a clear and transparent liquid, which is the target product 1.

[0077] Example 2

[0078] 1. Weigh 1g of clarifying agent A into a beaker, add 99g of deionized water, and let it swell for 12 hours to obtain a solution of component A for later use.

[0079] Weigh 2g of clarifying agent B into a beaker, add 98g of 1wt% citric acid aqueous solution, and allow it to swell for 12 hours to obtain a solution of component B for later use.

[0080] 2. Weigh 5g of tobacco extract and put it into a reaction flask. Add 95g of propylene glycol and mix well to obtain a diluted tobacco extract solution.

[0081] 3. Place the reaction flask in a constant temperature heating magnetic stirrer, set the temperature to 60℃, add 10g of component B solution to the reaction flask, and stir for 30min at a rotor speed of 20rpm.

[0082] Add another 5g of component A solution to the reaction flask, and stir for 1 hour at a rotor speed of 20 rpm.

[0083] After stirring, remove the reaction flask and allow it to cool to room temperature before placing it in a 4°C refrigerator overnight to settle.

[0084] 4. After sedimentation, a large amount of flocculent material is produced in the reaction flask. Filtering with a 1500-mesh filter cloth yields a clear and transparent liquid, which is the target product 2.

[0085] Example 3

[0086] 1. Weigh 0.5g of clarifying agent A into a beaker, add 99.5g of deionized water, and allow it to swell for 12 hours to obtain a solution of component A for later use.

[0087] Weigh 1g of clarifying agent B into a beaker, add 99g of 1wt% citric acid aqueous solution, and allow it to swell for 12 hours to obtain a solution of component B for later use.

[0088] 2. Weigh 10g of Burley tobacco extract and put it into a reaction flask. Add 90g of propylene glycol and mix well to obtain a diluted Burley tobacco extract solution.

[0089] 3. Place the reaction flask in a constant temperature heating magnetic stirrer, set the temperature to 60℃, add 8g of component B solution to the reaction flask, and stir for 30min at a rotor speed of 20rpm.

[0090] Add another 4g of component A solution to the reaction flask, and stir for 1 hour at a rotor speed of 20 rpm.

[0091] After stirring, remove the reaction flask and allow it to cool to room temperature before placing it in a 4°C refrigerator overnight to settle.

[0092] 4. After sedimentation, a large amount of flocculent material is produced in the reaction flask. Filtering with a 1000-mesh filter cloth yields a clear and transparent liquid, which is the target product 3.

[0093] Example 4

[0094] 1. Weigh 0.5g of clarifying agent A into a beaker, add 99.5g of deionized water, and allow it to swell for 12 hours to obtain a solution of component A for later use.

[0095] Weigh 1g of clarifying agent B into a beaker, add 99g of 1wt% citric acid aqueous solution, and allow it to swell for 12 hours to obtain a solution of component B for later use.

[0096] 2. Weigh 5g of Turkish tobacco extract and put it into a reaction flask. Add 95g of propylene glycol and mix well to obtain a diluted solution of Turkish tobacco extract.

[0097] 3. Place the reaction flask in a constant temperature heating magnetic stirrer, set the temperature to 60℃, add 10g of component B solution to the reaction flask, and stir for 30min at a rotor speed of 20rpm.

[0098] Add another 5g of component A solution to the reaction flask, and stir for 1 hour at a rotor speed of 20 rpm.

[0099] After stirring, remove the reaction flask and allow it to cool to room temperature before placing it in a 4°C refrigerator overnight to settle.

[0100] 4. After sedimentation, a large amount of flocculent material is produced in the reaction flask. Filtering with a 1500-mesh filter cloth yields a clear and transparent liquid, which is the target product 4.

[0101] As attached Figures 2-5 As shown, the target products prepared in Examples 1-4 and commercially available tobacco extract raw materials were added at a ratio of 2% to a solvent containing propylene glycol and glycerin in a mass ratio of 1:1 to prepare an electronic cigarette atomizing liquid. This liquid was then injected into ceramic core cartridges for sensory evaluation and machine-made cigarette core testing. The commercially available Yunnan tobacco puree and commercially available Turkish tobacco extract were refined using existing techniques such as alcohol precipitation or solvent heating. The results are shown in the table below.

[0102]

[0103] According to Example 1 and Comparative Example 1:

[0104] The tobacco extract of Example 1 is a clear, transparent, brownish-yellow liquid, while that of Comparative Example 1 is a black paste. Compared to Comparative Example 1, the tobacco extract of Example 1 has better solubility in propylene glycol (PG) and glycerol (VG), without exhibiting phenomena such as sticking to the walls or sedimentation of solid particles. When smoked, the tobacco aroma of Example 1 is rich and full-bodied, with a distinct smoky feel and a clean aftertaste, exhibiting the characteristics of traditional cigarette aroma. In contrast, Comparative Example 1 only has the aroma characteristics of the tobacco puree itself, and the aroma is not authentic and natural enough. It can be seen that the tobacco extract processed by the refining method of this application, compared to the tobacco extract of Comparative Example 1 refined using the existing alcohol precipitation or solvent heating method, contains a large number of aroma-enhancing components that are in harmony with tobacco, and has advantages such as a strong natural aroma and a full aroma structure. It has a good application effect in improving the quality of tobacco products. Furthermore, in the paste core test, see Appendix Figure 2 As shown, the tobacco extract prepared in Example 1 showed no burnt taste after 1000 puffs, and the ceramic core showed only slight carbon buildup and no burnt core after photographic examination. In contrast, Comparative Example 1 stopped producing smoke after only 200 puffs, and the ceramic core had burned out. This demonstrates that the tobacco extract processed by the purification method of this application removes some high-boiling-point proteins, tannins, gums, and other macromolecular components during clarification, solving the problems of severe carbon buildup and even burnt core that are easily caused when tobacco extract is used in ceramic core cartridges. It has good application prospects in the atomizer field. Compared with traditional alcohol precipitation and solvent heating methods, this application is more efficient, simple, economical, environmentally friendly, and low-cost. At the same time, compared with other methods that use clarifying agents to purify tobacco extracts, this application has fewer steps, a simpler and faster process, and can quickly clarify the raw materials. In addition, this application uses less clarifying agent, reducing the cost and saving clarification time. Clarification is simple and quick.

[0105] According to Example 4 and Comparative Example 2:

[0106] The tobacco extract of Example 4 is a clear, transparent, brownish-yellow liquid, while that of Comparative Example 1 is a black paste. Compared to Comparative Example 2, the tobacco extract of Example 4 has better solubility in propylene glycol (PG) and glycerol (VG), without exhibiting phenomena such as sticking to the walls or sedimentation of solid particles. When smoked, the aroma of Example 4 is mellow and delicate, with tea-like and sweet notes, while the characteristic tobacco aroma of Comparative Example 2 is weaker, the smoke is less natural, and there are off-flavors. It can be seen that the tobacco extract processed by the refining method of this application, compared to the tobacco extract of Comparative Example 2 refined using existing alcohol precipitation or solvent heating methods, contains a large number of aroma components that harmonize with tobacco, and has advantages such as a strong natural aroma and a full aroma structure, demonstrating good application effects in improving the quality of tobacco products. Furthermore, in the paste core test, see Appendix... Figure 5As shown, the tobacco extract prepared in Example 4 showed no burnt taste after 1000 puffs, and the ceramic core showed only slight carbon buildup and no burnt core after photographic examination. In contrast, Comparative Example 2 stopped producing smoke after only 200 puffs, and the ceramic core had burned out. This demonstrates that the tobacco extract processed by the purification method of this application removes some high-boiling-point proteins, tannins, gums, and other macromolecular components during clarification, solving the problems of severe carbon buildup and even burnt core that are easily caused when tobacco extract is used in ceramic core cartridges. It has good application prospects in the atomizer field. Compared with traditional alcohol precipitation and solvent heating methods, this application is more efficient, simple, economical, environmentally friendly, and low-cost. At the same time, compared with other methods that use clarifying agents to purify tobacco extracts, this application has fewer steps, a simpler and faster process, and can quickly clarify the raw materials. In addition, this application uses less clarifying agent, reducing usage costs and saving clarification time. Clarification is simple and quick.

[0107] According to Examples 1-4 and Comparative Examples 1-2, it can be seen that:

[0108] Under the same conditions, compared with the commercially available tobacco extracts of Comparative Examples 1-2, the target products prepared in Examples 1-4 showed significant improvements in raw material properties, tobacco aroma, and tobacco flavor intensity, making them closer to the characteristics of traditional cigarette aroma. Machine-dried cigarette core tests showed that the target products prepared in Examples 1-4, when used in ceramic core cartridges, were less prone to core burning leading to a burnt taste during smoking, while the commercially available tobacco extracts of Comparative Examples 1-2 were unusable after only 200 puffs. This demonstrates a significant improvement in the effectiveness and lifespan of the present invention.

[0109] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A method for refining tobacco extract, characterized in that, Includes the following steps: A tobacco extract raw material is provided, which is then diluted with an alcohol solvent and mixed evenly to obtain a diluted solution; wherein the alcohol solvent includes propylene glycol; Preparation of component A solution: Add deionized water to clarifying agent component A to swell and stir into a paste, then dilute to obtain the component A solution; Preparation of component B solution: The clarifying agent component B is swollen with 0.1 wt% to 1 wt% of organic weak acid solvent and stirred into a paste, then diluted to obtain the component B solution; Preparation of reaction solution: First, add the component B solution to the diluted solution and stir. Then, add the component A solution, stir, and let it stand to settle to obtain a reaction solution containing flocculent matter. Preparation of refined tobacco extract: Filter the reaction solution to remove the flocculent matter, and obtain refined tobacco extract.

2. The method for refining tobacco extract according to claim 1, characterized in that: The mass ratio of the alcohol solvent to the tobacco extract raw material is (9-19):

1.

3. The method for refining tobacco extract according to claim 1, characterized in that: In the step of preparing the A component solution: the concentration of the A component solution is 0.5-1 wt%; the swelling time is 10-12 h.

4. The method for refining tobacco extract according to claim 1, characterized in that: In the step of preparing the component B solution: the concentration of the component B solution is 1-2 wt%; the swelling time is 10-12 h.

5. The method for refining tobacco extract according to claim 1, characterized in that: In the preparation of component B solution in step B: the organic weak acid solvent includes an aqueous solution of citric acid.

6. The method for refining tobacco extract according to claim 1, characterized in that: In the step of preparing the reaction solution, the mass ratio of component A solution to diluent is (0.04–0.05):1; and / or, The stirring speed is 10-20 rpm, the stirring time is 30-60 min, and the stirring temperature is 40-60℃.

7. The method for refining tobacco extract according to claim 1, characterized in that: In the step of preparing the reaction solution, the mass ratio of component B solution to diluent is (0.08–0.1):1; and / or, The stirring speed is 10-20 rpm, the stirring time is 10-30 min, and the stirring temperature is 40-60℃.

8. The method for refining tobacco extract according to claim 1, characterized in that: In the preparation of the reaction solution, the settling temperature is 0-4℃ and the settling time is 1-24h.

9. The method for refining tobacco extract according to claim 1, characterized in that: In the step of preparing refined tobacco extract: the mesh size of the filter cloth used to filter and remove the flocculent matter is 1000-1500 mesh.

10. The method for refining tobacco extract according to claim 1, characterized in that: The tobacco extract raw materials include one of Yunnan tobacco pure oil, sun-dried tobacco extract, Burley tobacco extract, and Turkish tobacco extract.

11. An atomizing liquid, characterized in that: The atomizing liquid comprises an atomizing liquid solvent and a tobacco extract prepared by the method of refining tobacco extract according to any one of claims 1-10.

12. An electronic atomizing device, characterized in that, Includes an oil cup containing a tobacco extract prepared by the method of refining tobacco extract according to any one of claims 1-10 or containing an atomizing liquid as described in claim 11.

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