A method for preparing a smoking explosion ball containing microcapsules

Abstract

The present application relates to a kind of preparation methods of cigarette burst ball containing microcapsule, which includes core liquid preparation, wall material solution preparation, microcapsule preparation, drop preparation, cleaning and drying etc. steps.The cigarette burst ball containing microcapsule prepared by the present application can increase the level of cigarette smoke flavor in the process of smoking, improve the richness of burst ball essence and the uniformity in cigarette, and has level, improve smoke quality.The present application solves the problems of poor aroma persistence and unevenness in the process of smoking existing burst ball smoke.

Description

[Technical Field]

[0001] This invention belongs to the field of tobacco flavor capsule technology. More specifically, this invention relates to a method for preparing tobacco flavor capsules containing microcapsules. [Background Technology]

[0002] "Mixed capsule cigarettes" are a new type of cigarette with capsules containing liquid flavorings embedded in the filter. The aroma is released by squeezing the capsules. This increases the humidity of the smoke and improves the filter's ability to retain aroma, resulting in a richer flavor. Because the capsules make a slight popping sound when they break, they are commonly known as "capsule cigarettes." As a representative of innovative development in the cigarette category, "capsule cigarettes" are gradually showing strong growth momentum and promising prospects due to their unique advantages.

[0003] Most menthol cigarettes on the market achieve their flavor enhancement effect by inserting a single or multiple menthol capsules. A single capsule results in a limited flavor profile, providing only a one-time enhancement with a weaker aroma longevity. Multiple capsules allow for controlled release of different flavors, but are more expensive than a single capsule, require a specific smoking sequence, and result in less even distribution of aroma within the filter.

[0004] Therefore, in response to the technical defects of the existing technology, the inventors conducted extensive experimental research and analysis, and finally completed this invention. [Summary of the Invention]

[0005] [Technical problem to be solved]

[0006] The purpose of this invention is to provide a method for preparing tobacco flavoring beads containing microcapsules.

[0007] [Technical Solution]

[0008] The present invention is achieved through the following technical solution.

[0009] This invention relates to a method for preparing tobacco flavoring beads containing microcapsules.

[0010] The preparation steps of this method are as follows:

[0011] A. Core Fluid Preparation

[0012] Under conditions of 50-65℃, two or more fragrances are dissolved in vegetable oil solvent at a weight ratio of 1:7-8 of fragrance to vegetable oil solvent, and stirred evenly to obtain the core liquid.

[0013] B. Preparation of wall material solution

[0014] In a water bath heating stirrer, 5000-8000 parts by weight of purified water are heated to 50-70°C. Then, 50-100 parts by weight of glycerol, 100-200 parts by weight of plant gum, 50-150 parts by weight of biopolymer, 15-30 parts by weight of inorganic chloride and 50-100 parts by weight of toughening agent are added and mixed evenly. The mixture is then heated to 70-90°C and maintained at a stirrer speed of 2000-3000 r / min for 1-2 hours to obtain the wall material solution.

[0015] C. Microcapsule preparation

[0016] 1-3 parts by weight of fragrance are heated to 30-40°C, then 1-3 parts by weight of emulsifier and 2-4 parts by weight of stabilizer are added. The mixture is stirred at 100-500 r / min to dissolve the fragrance and obtain a fragrance emulsion. The fragrance emulsion is added dropwise to a microcapsule wall material aqueous solution with a concentration of 1-10 g / ml at a weight ratio of 1:1.5-2.0 and a dropping rate of 10 ml / min. The fragrance emulsion and the microcapsule wall material aqueous solution are contacted at a pressure of 0.1-100 Pa for 1.0-2.0 min, and microcapsules with a particle size of 50-150 μm are obtained.

[0017] D. Dropping

[0018] Using a dripping machine, the wall material solution obtained in step B is added to the glue pot of the dripping machine and heated to a temperature of 70-90°C. The core liquid obtained in step A is added to the fragrance tank, and the microcapsules obtained in step C are added to the microcapsule pump. Then, under the conditions of a microcapsule dripping rate of 15-30 capsules / second, a wall material solution flow rate of 12-20 ml / min, and a core liquid flow rate of 7-10 ml / min, they are simultaneously dripped into caprylic / capric triglyceride cooling solution for cooling to obtain wet tobacco capsules.

[0019] E. Cleaning and drying

[0020] The wet tobacco bursting beads obtained in step D are washed with pure water 2-3 times according to a weight ratio of 1:2.0-3.0 to 1:2.0. Then, they are dried in a dryer at a temperature of 25-30°C for 4-6 hours to obtain tobacco bursting beads containing microcapsules. The tobacco bursting beads contain 15-30 microcapsules with a diameter of 100-200 μm. The diameter of the tobacco bursting beads is 3.8-4.5 mm.

[0021] According to a preferred embodiment of the present invention, in steps A and C, the flavoring is one or more flavorings selected from watermelon flavor, tangerine peel flavor, guava coffee flavor or honey flavor; the vegetable oil is one or more vegetable oils selected from soybean oil, peanut oil, rapeseed oil or olive oil.

[0022] According to another preferred embodiment of the present invention, in step B, the plant gum is one or more plant gums selected from carrageenan, agar, konjac gum or sodium alginate.

[0023] According to another preferred embodiment of the present invention, in step B, the biopolymer is gellan gum or xanthan gum.

[0024] According to another preferred embodiment of the present invention, in step B, the inorganic chloride is potassium chloride or calcium chloride.

[0025] According to another preferred embodiment of the present invention, in step B, the toughening agent is one or more toughening agents selected from glycerol, sodium hexametaphosphate, sodium tripolyphosphate or polyvinyl alcohol.

[0026] According to another preferred embodiment of the present invention, in step C, the microcapsule wall material is one or more wall materials selected from chitosan, modified starch or sodium alginate.

[0027] According to another preferred embodiment of the present invention, in step C, the emulsifier is one or more emulsifiers selected from soybean lecithin, polyoxyethylene xylitol anhydride stearate or glyceryl monostearate, and the stabilizer is one or more stabilizers selected from agar, sodium carboxymethyl cellulose, modified starch or sodium alginate.

[0028] According to another preferred embodiment of the present invention, in step C, the wall material solution is one or more wall material solutions selected from anhydrous calcium lactate, calcium chloride or calcium carbonate.

[0029] According to another preferred embodiment of the present invention, in step D, the dripping machine is a single-drip-head dripping machine, a multi-drip-head dripping machine, a pulse-type dripping machine, or a high-speed dripping machine; in step E, the dryer is a rotary drum dryer or a fluidized bed dryer.

[0030] The invention will now be described in more detail.

[0031] This invention relates to a method for preparing tobacco flavoring beads containing microcapsules.

[0032] The present invention relates to a tobacco flavoring bead containing multiple microcapsules. The flavoring bead core liquid and the microcapsule core liquid have different aromas. The flavoring bead is mainly embedded in the tobacco shreds or near the filter rod end of the tobacco shreds. It is melted by the temperature of the tobacco shreds. The wall material melts first and then the microcapsules are released. The microcapsules melt later and release different aromas, increasing the layering of aroma during the smoking process and the uniformity of the flavoring in the tobacco shreds.

[0033] The preparation steps of this method are as follows:

[0034] A. Core Fluid Preparation

[0035] At a temperature of 50–65°C, two or more flavorings are dissolved in a vegetable oil solvent at a weight ratio of 1:7–8, and stirred until homogeneous to obtain the core liquid. In this invention, the main function of the flavorings in the core liquid is to enhance the flavor of the popping beads. The main function of the vegetable oil solvent in the core liquid is to dissolve and dilute the flavorings.

[0036] The flavoring used in this invention is one or more flavorings selected from watermelon flavor, tangerine peel flavor, guava coffee flavor, or honey flavor. These are all products currently sold on the market, such as watermelon flavoring sold by Shandong Xinyi Fine Chemical Co., Ltd. under the trade name watermelon flavoring, tangerine peel flavoring sold by Shantou Youyue Food Industry Co., Ltd. under the trade name tangerine peel flavoring, guava flavoring sold by Shantou Mingde Food Additives Co., Ltd. under the trade name guava flavoring, and honey flavoring sold by Shanghai Fengmi Industry Co., Ltd. under the trade name honey flavoring.

[0037] The vegetable oils used in this invention are soybean oil, peanut oil, rapeseed oil, or olive oil. All vegetable oils used in this invention are currently commercially available products, such as rapeseed oil sold by Shandong Sihecheng Oil & Ester Co., Ltd. under the trade name Sichuan Physically Pressed Rapeseed Oil; soybean oil sold by Yihai Kerry Golden Dragon Fish Grain & Oil Food Co., Ltd. under the trade name Golden Dragon Fish Soybean Oil; peanut oil sold by Shandong Fuzekang Edible Oil Co., Ltd. under the trade name Aromatic Pressed Grade 1 Peanut Oil; and olive oil sold by Oulivlan Biotechnology Co., Ltd. under the trade name Extra Grade Olive Oil.

[0038] In this step, the flavoring and vegetable oil solvent are mixed at a weight ratio of 1:7-8 at a temperature of 50-65°C. If the mixing temperature is below 50°C, the flavoring will not dissolve; if the mixing temperature is above 65°C, the effective components of the flavoring will evaporate and be lost. Therefore, a mixing temperature of 50-65°C is suitable. After the flavoring is completely dissolved, it is stirred and mixed with the vegetable oil solvent. If the weight ratio of flavoring to vegetable oil solvent is less than 1:8, the flavoring has a pungent odor and a mixed aroma, and the flavoring is too strong when smoking, masking the aroma of the cigarette; if the weight ratio of flavoring to vegetable oil solvent is greater than 1:7, the flavoring is weak and difficult to detect when smoking. Therefore, a weight ratio of flavoring to vegetable oil solvent of 1:7-8 is preferable.

[0039] B. Preparation of wall material solution

[0040] In a water bath heating stirrer, 5000-8000 parts by weight of purified water are heated to 50-70°C. Then, 50-100 parts by weight of glycerol, 100-200 parts by weight of plant gum, 50-150 parts by weight of biopolymer, 15-30 parts by weight of inorganic chloride and 50-100 parts by weight of toughening agent are added and mixed evenly. The mixture is then heated to 70-90°C and maintained at a stirrer speed of 2000-3000 r / min for 1-2 hours to obtain the wall material solution.

[0041] The raw materials used in preparing the wall material solution in this invention are glycerol, plant gum, biopolymer, inorganic chloride, and toughening agent, wherein:

[0042] The main role of glycerol in the preparation of wall material solutions is to increase the toughness and water retention of the wall material; the glycerol used in this invention is a product currently sold on the market, such as the product sold by Suzhou Minghua Sugar Alcohol Co., Ltd. under the trade name glycerol.

[0043] The main role of plant gums in the preparation of wall material solutions is to act as thickeners, gelling agents, and stabilizers. The plant gums used in this invention are carrageenan, agar, konjac gum, or sodium alginate, all of which are currently commercially available products. For example, carrageenan sold by Qingdao Haizhilin Biotechnology Development Co., Ltd. under the trade name carrageenan, agar sold by Wuhan Taike Biotechnology Co., Ltd. under the trade name instant agar, konjac gum sold by Ningbo Hengcheng Daily Chemicals Co., Ltd. under the trade name konjac gum, and sodium alginate sold by Qingdao Longchuan Biotechnology Co., Ltd. under the trade name sodium alginate.

[0044] The main role of biopolymers in the preparation of wall material solutions is as a thickener and emulsifier. The biopolymers used in this invention are gellan gum or xanthan gum, both of which are currently commercially available products. For example, gellan gum sold by Zhejiang Tianwei Biotechnology Co., Ltd. under the trade name gellan gum, and xanthan gum sold by Jianlong Biotechnology Co., Ltd. under the trade name xanthan gum.

[0045] The main role of inorganic chlorides in the preparation of wall material solutions is to increase the strength and toughness of the wall material; the inorganic chlorides used in this invention are potassium chloride or calcium chloride, which are commonly used products in the field of chemical technology.

[0046] The main function of toughening agents in preparing wall material solutions is to increase the toughness of the wall material. The toughening agents used in this invention, such as glycerol, sodium hexametaphosphate, sodium tripolyphosphate, or polyvinyl alcohol, are all products currently sold on the market. For example, sodium hexametaphosphate sold by Henan Pinman Food Co., Ltd. under the trade name sodium hexametaphosphate, sodium tripolyphosphate sold by Wuhan Shengruiyuan Biotechnology Co., Ltd. under the trade name sodium tripolyphosphate, and polyvinyl alcohol sold by Guangzhou Zhonggao Chemical Co., Ltd. under the trade name polyvinyl alcohol.

[0047] According to the present invention, when the amounts of plant gum, biopolymer, inorganic chloride and toughening agent are within the range described, if the amount of glycerol is less than 50 parts by weight, the wall material has poor toughness and the bursting beads are easily broken; if the amount of glycerol is more than 100 parts by weight, the wall material becomes more brittle and the bursting beads are easily broken; therefore, the amount of glycerol is suitable at 50 to 100 parts by weight, preferably 65 to 85 parts by weight.

[0048] When the amounts of glycerol, biopolymer, inorganic chloride, and toughening agent are within the aforementioned range, if the amount of plant gum is less than 100 parts by weight, the wall material solution will have poor coagulation properties, and the popping beads will not form during dripping; if the amount of plant gum is more than 200 parts by weight, the wall material solution will be too viscous, and the popping beads will stick together during dripping; therefore, an amount of plant gum of 100 to 200 parts by weight is reasonable, and preferably 125 to 170 parts by weight.

[0049] When the amounts of glycerol, plant gum, inorganic chloride, and toughening agent are within the aforementioned range, if the amount of biopolymer is less than 50 parts by weight, the wall material hardness is poor, the capsules are prone to breakage, and the product quality is affected; if the amount of biopolymer is greater than 150 parts by weight, the wall material hardness is high, the capsules are not easy to break, and the sucking experience is affected; therefore, the amount of biopolymer is appropriate at 50 to 150 parts by weight, preferably 80 to 125 parts by weight.

[0050] When the amounts of glycerol, plant gum, biopolymer, and toughening agent are within the aforementioned range, if the amount of inorganic chloride is less than 15 parts by weight, the wall material structure will be loose, affecting the production of burst beads; if the amount of inorganic chloride is more than 30 parts by weight, the wall material will become brittle, and the burst beads will easily break. Therefore, the amount of inorganic chloride is appropriate at 15 to 30 parts by weight, preferably 18 to 25 parts by weight.

[0051] When the amounts of glycerol, plant gum, biopolymer, and inorganic chloride are within the aforementioned range, if the amount of toughening agent is less than 50 parts by weight, the wall material has poor toughness and the burst beads are easily broken; if the amount of toughening agent is more than 100 parts by weight, the wall material becomes more brittle and the burst beads are easily broken. Therefore, an amount of toughening agent of 50 to 100 parts by weight is desirable, and preferably 65 to 85 parts by weight.

[0052] First, dissolving glycerol in pure water increases its solubility and stability, allowing it to mix better with other raw materials. Then, adding plant gums, biopolymers, inorganic chlorides, and toughening agents enhances the solution's viscosity, adhesion, and strength, improving its flowability and coating performance.

[0053] In this step, when the stirrer speed and heating time are within the specified range, if the heating temperature is below 70°C, the plant gum will not be completely dissolved, resulting in some small clumps of gum, which will affect the coating effect of the wall material; if the heating temperature is above 90°C, it will damage the internal spatial structure of the wall material, and the elasticity and density of the popping beads will be weakened. Therefore, a heating temperature of 70-90°C is suitable. When the heating temperature and heating time are within the specified range, if the stirrer speed is below 2000 r / min, the plant gum will not be mixed evenly, resulting in some small clumps of gum, which will affect the coating effect of the wall material. If the stirrer speed exceeds 3000 rpm, it will disrupt the shear force between plant gum molecules, reducing viscosity; therefore, a stirrer speed of 2000–3000 rpm is appropriate. When the heating temperature and stirrer speed are within the aforementioned range, if the heating time is less than 1 hour, the plant gum will not be completely dissolved, resulting in poor gel performance of the wall material and affecting the coating effect of the popping bead wall material; if the heating time is longer than 2 hours, it will damage the internal structure of the wall material solution, leading to increased viscosity and weakened toughness and strength of the wall material; therefore, a heating time of 1–2 hours is reasonable.

[0054] C. Microcapsule preparation

[0055] 1-3 parts by weight of fragrance are heated to 30-40°C, then 1-3 parts by weight of emulsifier and 2-4 parts by weight of stabilizer are added. The mixture is stirred at 100-500 r / min to dissolve the fragrance and obtain a fragrance emulsion. The fragrance emulsion is added dropwise to a microcapsule wall material aqueous solution with a concentration of 1-10 g / ml at a weight ratio of 1:1.5-2.0 and a dropping rate of 10 ml / min. The fragrance emulsion and the microcapsule wall material aqueous solution are contacted at a pressure of 0.1-100 Pa for 1.0-2.0 min, and microcapsules with a particle size of 50-150 μm are obtained.

[0056] In this step, the basic role of the emulsifier in microcapsule preparation is to prevent microcapsules from agglomerating and coagulating, thus maintaining the uniformity of the fragrance emulsion. The emulsifier used in this invention is one or more emulsifiers selected from soybean lecithin, polyoxyethylene xylitol anhydride stearate, or glyceryl monostearate. These are all products currently sold on the market, such as soybean lecithin sold by Henan Hengao Biotechnology Co., Ltd. under the trade name lecithin, polyoxyethylene xylitol anhydride stearate sold by Xi'an Darwen Biotechnology Co., Ltd. under the trade name polyoxyethylene xylitol anhydride stearate, and glyceryl monostearate sold by Mingrui Group Co., Ltd. under the trade name glyceryl stearate.

[0057] The basic role of stabilizers in microcapsule preparation is to promote the stability of flavor emulsions. The stabilizers used in this invention are one or more stabilizers selected from agar, sodium carboxymethyl cellulose, modified starch or sodium alginate. These are all products currently sold on the market, such as agar sold by Wuhan Taike Biotechnology Co., Ltd. under the trade name Instant Agar, and sodium carboxymethyl cellulose sold by Jiangxi Baiying Biotechnology Co., Ltd. under the trade name Sodium Carboxymethyl Cellulose.

[0058] The microcapsule wall material used in this step is one or more selected from chitosan, modified starch, or sodium alginate. These are all products currently sold on the market, such as chitosan sold by Xuzhou Baishun Biotechnology Co., Ltd. under the trade name chitosan, and modified starch sold by Henan Hengao Biotechnology Co., Ltd. under the trade name modified starch.

[0059] In this step, if the fragrance is heated to a temperature above 40°C, the fragrance will not emulsify completely due to evaporation; if the fragrance is heated to a temperature below 30°C, the fragrance will precipitate and form flocculent material, which will prevent emulsification.

[0060] In this step, when the stabilizer dosage and stirrer speed are within the specified range, if the emulsifier dosage is less than 1 part by weight, the fragrance emulsification will be incomplete; if the emulsifier dosage is more than 3 parts by weight, the fragrance emulsion will become too viscous, producing a large number of bubbles, affecting its use; therefore, an emulsifier dosage of 1 to 3 parts by weight is appropriate. When the emulsifier dosage and stirrer speed are within the specified range, if the stabilizer dosage is less than 2 parts by weight, the fragrance will not emulsify due to poor stability; if the stabilizer dosage is more than 4 parts by weight, the viscosity of the fragrance emulsion will increase; therefore, a stabilizer dosage of 2 to 4 parts by weight is preferable. When the emulsifier dosage and stabilizer speed are within the specified range, if the stirrer speed is less than 100 r / min, the stirring will be uneven, and the fragrance emulsion will not be completely emulsified; if the stirrer speed is more than 500 r / min, the fragrance emulsion will produce a large number of bubbles, reducing its stability; therefore, a stirrer speed of 100 to 500 r / min is appropriate.

[0061] Under the conditions of a fragrance emulsion to microcapsule wall material aqueous solution weight ratio of 1:1.5–2.0 and a dropping rate of 10 ml / min, the fragrance emulsion is added dropwise to a microcapsule wall material aqueous solution with a concentration of 1–10 g / ml. When the dropping rate and the concentration of the microcapsule wall material aqueous solution are within the aforementioned range, if the weight ratio of the fragrance emulsion to the microcapsule wall material aqueous solution is greater than 1:1.5, the microcapsules are difficult to form in the microcapsule wall material aqueous solution; if the weight ratio is less than 1:2.0, the microcapsules are easily deformed in the microcapsule wall material aqueous solution. Therefore, a weight ratio of 1:1.5–2.0 for the fragrance emulsion to the microcapsule wall material aqueous solution is appropriate. When the dripping rate and the weight ratio of the fragrance emulsion to the microcapsule wall material aqueous solution are within the specified range, if the concentration of the microcapsule wall material aqueous solution is less than 1 g / ml, the microcapsules will be difficult to form; if the concentration of the microcapsule wall material aqueous solution is greater than 10 g / ml, the microcapsules will rupture significantly after forming, affecting the dripping effect. Therefore, a concentration of 1 to 10 g / ml for the microcapsule wall material aqueous solution is reasonable, and preferably 5 to 8 g / ml.

[0062] The fragrance emulsion and the microcapsule wall material aqueous solution are contacted at a pressure of 0.1–100 Pa for 1.0–2.0 min to separate microcapsules with a particle size of 50–150 μm. When the contact time is within the specified range, if the contact pressure is below 0.1 Pa, the microcapsule aqueous solution cannot coat the fragrance emulsion; if the contact pressure is above 100 Pa, the microcapsules will rupture. Therefore, a contact pressure of 0.1–100 Pa is preferable. When the contact pressure is within the specified range, if the contact time is less than 1.0 min, the microcapsule formation time is insufficient, resulting in incomplete formation; if the contact time is longer than 2.0 min, the microcapsule hardness increases, affecting subsequent suction effects. Therefore, a contact time of 1.0–2.0 min is feasible.

[0063] According to the standard method of GB / T 21524-2008 Determination of Particle Size in Inorganic Chemical Products by Sieving Method, the particle size of the microcapsules obtained in this step is 50-150 μm.

[0064] D. Dropping

[0065] Using a dripping machine, the wall material solution obtained in step B is added to the glue pot of the dripping machine and heated to a temperature of 70-90°C. The core liquid obtained in step A is added to the fragrance tank, and the microcapsules obtained in step C are added to the microcapsule pump. Then, under the conditions of a microcapsule dripping rate of 15-30 capsules / second, a wall material solution flow rate of 12-20 ml / min, and a core liquid flow rate of 7-10 ml / min, they are simultaneously dripped into caprylic / capric triglyceride cooling solution for cooling to obtain wet tobacco capsules.

[0066] When using a dripping machine, the temperature of the glue pot needs to be maintained between 70 and 90°C. If the temperature of the glue pot is below 70°C, the wall material solution will slowly cool and solidify, affecting the stability of material flow during the dripping process and easily clogging the dripper. If the temperature of the glue pot is above 90°C, it will damage the colloidal structure, resulting in a loose colloidal material and poor density of the glue sheet.

[0067] When the flow rates of the wall material solution and the core liquid are within the aforementioned range, if the microcapsule dropping speed is higher than 30 capsules / second, the specific gravity of the core liquid will decrease, thus affecting the suction effect; if the microcapsule dropping speed is lower than 15 capsules / second, the specific gravity of the core liquid will increase, the fragrance content in the microcapsules will decrease, the aroma will be masked, and the harmony will be poor. Therefore, a microcapsule dropping speed of 15–30 capsules / second is suitable. When the flow rates of the wall material solution and the core liquid are within the aforementioned range, if the flow rate of the wall material solution is lower than 12 ml / min, the bursting beads will not form a proper shape, and the particle size will become larger; if the flow rate of the wall material solution is higher than 20 ml / min, the bursting beads will aggregate, forming gel clusters. Therefore, a wall material solution flow rate of 12–20 ml / min is reasonable. When the microcapsule dropping rate and the wall material solution flow rate are within the specified range, if the core liquid flow rate is lower than 7 ml / min, the core liquid specific gravity decreases, reducing the suction effect; if the core liquid flow rate is higher than 10 ml / min, the wall material is too thin, and the capsules are prone to breakage. Therefore, a core liquid flow rate of 7–10 ml / min is appropriate.

[0068] The caprylic / capric triglyceride used in this invention is a product currently sold on the market, such as caprylic / capric triglyceride sold by Mingrui Group Co., Ltd. under the trade name medium-chain triglycerides.

[0069] The dripping machine used in this invention is a single-dropper dripping machine, a multi-dropper dripping machine, a pulse dripping machine, or a high-speed dripping machine. These are all products currently sold on the market. For example, the single-dropper dripping machine sold by Tianjin Feihuolei Intelligent Technology Co., Ltd. under the trade name "Fully Automatic Bursting Bead Machine", the multi-dropper dripping machine sold by Yantai Baiyaotai Traditional Chinese Medicine Technology Co., Ltd. under the trade name "Multifunctional Droplet Experimental Machine", the pulse dripping machine sold by Yantai Boxin Pharmaceutical Machinery Co., Ltd. under the trade name "DWJJ Drip-type Seamless Soft Capsule Machine", and the high-speed dripping machine sold by Yantai Baiyaotai Traditional Chinese Medicine Technology Co., Ltd. under the trade name "DWJ-2000-JW-2T Capsule Machine".

[0070] E. Cleaning and drying

[0071] The wet tobacco capsules obtained in step D are washed with pure water 2-3 times according to a weight ratio of 1:2.0-3.0, and then dried in a dryer at a temperature of 25-30°C for 4-6 hours to obtain the tobacco capsules containing microcapsules. The tobacco capsules contain 15-30 microcapsules with a diameter of 100-200 μm. The diameter of the tobacco capsules is 3.8-4.5 mm.

[0072] In this step, when cleaning the wet tobacco capsules with purified water, if the weight ratio of the wet tobacco capsules to purified water is greater than 1:2.0, the wet tobacco capsules will be difficult to clean and will easily clump together; if the weight ratio of the wet tobacco capsules to purified water is less than 1:3.0, it will waste water resources. Therefore, a weight ratio of 1:2 to 3 for the wet tobacco capsules to purified water is appropriate.

[0073] In this step, the wet smoke capsules are washed with purified water 2 to 3 times. If the washing is less than 2 times, the wet smoke capsules will not be cleaned properly; if the washing is more than 3 times, the capsules are prone to breakage and production efficiency will decrease.

[0074] Washed tobacco capsules are dried in a washing and drying machine at a temperature of 25–30°C for 4–6 hours to obtain tobacco capsules containing microcapsules. Within this range, if the drying temperature is below 25°C, the drying time will be prolonged, reducing production efficiency and causing the capsules to deform; if the drying temperature is above 30°C, the rubber coating will melt, causing the capsules to stick together and clump. Therefore, a drying temperature of 25–30°C is appropriate. Within this range, if the drying time is less than 4 hours, the capsules will not be completely dried; if the drying time is longer than 6 hours, the capsules will become more brittle, the pressure value will decrease, and the quality of the capsules will be affected. Therefore, a drying time of 4–6 hours is preferable.

[0075] The dryer used in this invention is a rotary drum dryer or a fluidized bed dryer, both of which are currently available on the market. For example, the rotary drum dryer sold by Beijing Xinhangcheng Technology Development Co., Ltd. under the trade name YGJ-II fluidized bed soft capsule rotary drum dryer, and the fluidized bed dryer sold by Changzhou Lima Drying Technology Co., Ltd. under the trade name FG-200 tobacco capsule drying equipment.

[0076] The diameter of the cigarette capsules obtained by the method of this invention is 3.8 to 4.5 mm, as measured by a cigarette capsule size and shape tester.

[0077] According to GB 5606.4-2005 Cigarettes Part 4: Sensory Technical Requirements, a 7-member evaluation team was organized to conduct a comparative evaluation of cigarettes containing one or 2 to 6 of the present invention's tobacco flavor capsules and the same cigarettes without the present invention's tobacco flavor capsules. The evaluation results are shown in the Detailed Implementation Section.

[0078] [Beneficial Effects]

[0079] The beneficial effects of this invention are:

[0080] This invention prepares a novel cigarette flavor capsule containing microcapsules. Its structure enhances the layered aroma of cigarette smoke during inhalation, improves the richness of the flavoring, and increases the uniformity of its distribution within the cigarette. The preparation process is simple, and the main raw materials for the wall material are plant gums and biopolymers. These raw materials are environmentally friendly, readily available, and biodegradable, enabling large-scale industrial production. This invention solves the problems of poor aroma persistence and unevenness in existing cigarette flavor capsules. The cigarette flavor capsules containing microcapsules prepared by this invention are stable in properties and state, possess a rich and layered aroma, and improve the quality of cigarette smoke.

Detailed Implementation Methods

[0081] The invention will be better understood through the following examples.

[0082] Example 1: Preparation of the present invention containing microcapsule-containing tobacco flavoring beads

[0083] The implementation steps of this embodiment are as follows:

[0084] A. Core Fluid Preparation

[0085] At a temperature of 50°C, watermelon flavoring was dissolved in soybean oil vegetable oil solvent at a weight ratio of flavoring to vegetable oil solvent of 1:7.8, and stirred evenly to obtain the core liquid.

[0086] B. Preparation of wall material solution

[0087] In a water bath heating stirrer, 6200 parts by weight of purified water were heated to 66°C, and then 60 parts by weight of glycerol, 180 parts by weight of carrageenan plant gum, 110 parts by weight of gellan gum biopolymer, 27 parts by weight of potassium chloride inorganic chloride and 80 parts by weight of glycerol toughening agent were added and mixed evenly. The mixture was then heated to 78°C and maintained at a stirrer speed of 2000 r / min for 1.8 hours to obtain the wall material solution.

[0088] C. Microcapsule preparation

[0089] One part by weight of watermelon flavoring was heated to 40°C, and then three parts by weight of soybean lecithin emulsifier and two parts by weight of agar stabilizer were added. The mixture was stirred at 100 r / min to dissolve the flavoring emulsion. The flavoring emulsion was added dropwise to an aqueous solution of anhydrous calcium lactate microcapsule wall material with a concentration of 8 g / ml at a weight ratio of 1:1.8 and a dropping rate of 10 ml / min. The flavoring emulsion and the aqueous solution of microcapsule wall material were contacted at a pressure of 80 Pa for 1.2 min, and a microcapsule was obtained by separation. According to the method described in this application, its particle size is 50-80 μm.

[0090] D. Dropping

[0091] Using a single-dropper dripping machine, the wall material solution obtained in step B is added to the glue pot of the dripping machine and heated to 70°C. The core liquid obtained in step A is added to the fragrance tank, and the microcapsules obtained in step C are added to the microcapsule pump. Then, under the conditions of a microcapsule dripping rate of 18 capsules / second, a wall material solution flow rate of 14 ml / min, and a core liquid flow rate of 9 ml / min, they are simultaneously dripped into caprylic / capric triglyceride cooling solution for cooling, to obtain wet tobacco capsules.

[0092] E. Cleaning and drying

[0093] According to the weight ratio of wet tobacco capsules to purified water of 1:3.0, the wet tobacco capsules obtained in step D are washed twice with purified water and then placed in a rotary dryer and dried at 28°C for 5 hours to obtain tobacco capsules containing microcapsules.

[0094] According to the method described in this application, the cigarette-grade burst beads contain 24 microcapsules with a diameter of 100-140 μm; the diameter of the cigarette-grade burst beads is 3.8-4.5 mm.

[0095] According to the method described in this application, cigarettes sold by Hongyun Tobacco (Group) Co., Ltd. under the trade name Yunyan were evaluated against cigarettes containing a single tobacco flavoring bead containing microcapsules prepared in this embodiment. The evaluation results are listed in Table 1. The same cigarettes were also evaluated against cigarettes containing four tobacco flavoring beads containing microcapsules prepared in this embodiment. The evaluation results are listed in Table 2.

[0096] Meanwhile, the same cigarettes without the aforementioned tobacco flavor capsules were also evaluated as control samples, and the evaluation results are listed in Tables 1 and 2.

[0097] Example 2: Preparation of the present invention containing microcapsule-containing tobacco flavoring beads

[0098] The implementation steps of this embodiment are as follows:

[0099] A. Core Fluid Preparation

[0100] At a temperature of 58°C, the tangerine peel flavoring was dissolved in peanut oil vegetable oil solvent at a weight ratio of 1:7.0 to flavoring and stirred evenly to obtain the core liquid.

[0101] B. Preparation of wall material solution

[0102] In a water bath heating stirrer, 5000 parts by weight of purified water were heated to 70°C, and then 50 parts by weight of glycerol, 160 parts by weight of agar plant gum, 50 parts by weight of xanthan gum biopolymer, 18 parts by weight of calcium chloride inorganic chloride and 50 parts by weight of sodium hexametaphosphate toughening agent were added and mixed evenly. The mixture was then heated to 70°C and maintained at a stirrer speed of 1000 r / min for 1.2 hours to obtain the wall material solution.

[0103] C. Microcapsule preparation

[0104] Two parts by weight of dried tangerine peel flavoring were heated to 36°C, and then one part by weight of polyoxyethylene xylitol anhydride stearate emulsifier and three parts by weight of sodium carboxymethyl cellulose stabilizer were added. The mixture was stirred at 500 r / min to dissolve the flavoring emulsion. The flavoring emulsion was added dropwise to a 1 g / ml calcium chloride microcapsule wall material aqueous solution at a weight ratio of 1:1.5 and a dropping rate of 10 ml / min. The flavoring emulsion and the microcapsule wall material aqueous solution were contacted at a pressure of 60 Pa for 1.8 min, and a microcapsule was obtained by separation. According to the method described in this application, its particle size is 120-150 μm.

[0105] D. Dropping

[0106] The wall material solution obtained in step B is added to the glue pot of the dripping machine and heated to 74°C. The core liquid obtained in step A is added to the fragrance tank, and the microcapsules obtained in step C are added to the microcapsule pump. Then, under the conditions of microcapsule dripping speed of 15 capsules / second, wall material solution flow rate of 16 ml / min and core liquid flow rate of 7 ml / min, they are simultaneously dripped into caprylic / capric triglyceride cooling liquid for cooling to obtain wet tobacco capsules.

[0107] E. Cleaning and drying

[0108] According to the weight ratio of wet tobacco capsules to purified water of 1:2.0, the wet tobacco capsules obtained in step D are washed with purified water 3 times and then placed in a boiling dryer and dried at 25°C for 6 hours to obtain tobacco capsules containing microcapsules.

[0109] According to the method described in this application, the cigarette-grade burst beads contain 15 microcapsules with a diameter of 160-200 μm; the diameter of the cigarette-grade burst beads is 3.8-4.5 mm.

[0110] According to the method described in this application, cigarettes sold by Hongyun Tobacco (Group) Co., Ltd. under the trade name Yunyan and cigarettes containing a single tobacco flavoring bead containing microcapsules prepared in this embodiment were evaluated. The evaluation results are listed in Table 1. The same cigarettes and cigarettes containing two tobacco flavoring beads containing microcapsules prepared in this embodiment were also evaluated. The evaluation results are listed in Table 2.

[0111] Example 3: Preparation of the present invention containing microcapsule-containing tobacco flavoring beads

[0112] The implementation steps of this embodiment are as follows:

[0113] A. Core Fluid Preparation

[0114] At a temperature of 60°C, guava coffee flavoring was dissolved in a mixture of peanut oil and rapeseed oil (weight ratio 1:1) at a weight ratio of 1:7.2, and stirred evenly to obtain the core liquid.

[0115] B. Preparation of wall material solution

[0116] In a water bath heating stirrer, 8000 parts by weight of purified water were heated to 50°C, and then 70 parts by weight of glycerol, 140 parts by weight of a mixture of carrageenan and agar (weight ratio 1:1) plant gum, 90 parts by weight of gellan gum biopolymer, 15 parts by weight of potassium chloride inorganic chloride and 70 parts by weight of sodium tripolyphosphate toughening agent were added and mixed evenly. The mixture was then heated to 90°C and maintained at a stirrer speed of 3000 r / min for 1.0 hour to obtain the wall material solution.

[0117] C. Microcapsule preparation

[0118] Three parts by weight of guava coffee flavoring were heated to 30°C, and then one part by weight of glyceryl monostearate emulsifier and four parts by weight of modified starch stabilizer were added. The mixture was stirred at 200 r / min to dissolve the flavoring emulsion. The flavoring emulsion was added dropwise to a 10 g / ml calcium carbonate microcapsule wall material aqueous solution at a weight ratio of 1:1.6 and a dropping rate of 10 ml / min. The flavoring emulsion and the microcapsule wall material aqueous solution were contacted at a pressure of 100 Pa for 1.4 min, and a microcapsule was obtained by separation. According to the method described in this application, its particle size is 100-130 μm.

[0119] D. Dropping

[0120] The wall material solution obtained in step B is added to the glue pot of the dripping machine and heated to 90°C. The core liquid obtained in step A is added to the fragrance tank, and the microcapsules obtained in step C are added to the microcapsule pump. Then, under the conditions of microcapsule dripping speed of 22 capsules / second, wall material solution flow rate of 12 ml / min and core liquid flow rate of 10 ml / min, they are simultaneously dripped into caprylic / capric triglyceride cooling solution to obtain wet tobacco capsules.

[0121] E. Cleaning and drying

[0122] According to the weight ratio of wet tobacco capsules to purified water of 1:2.8, the wet tobacco capsules obtained in step D are washed twice with purified water and then placed in a rotary dryer and dried at 30°C for 4 hours to obtain tobacco capsules containing microcapsules.

[0123] According to the method described in this application, the cigarette-grade burst beads contain 18 microcapsules with a diameter of 120-160 μm; the diameter of the cigarette-grade burst beads is 3.8-4.5 mm.

[0124] According to the method described in this application, cigarettes sold by Hongyun Tobacco (Group) Co., Ltd. under the trade name Yunyan and cigarettes containing a single tobacco flavoring bead containing microcapsules prepared in this embodiment were evaluated. The evaluation results are listed in Table 1. The same cigarettes and cigarettes containing three tobacco flavoring beads containing microcapsules prepared in this embodiment were also evaluated. The evaluation results are listed in Table 2.

[0125] Example 4: Preparation of the present invention containing microcapsule-containing tobacco flavoring beads

[0126] The implementation steps of this embodiment are as follows:

[0127] A. Core Fluid Preparation

[0128] At a temperature of 62°C, honey flavoring was dissolved in a mixture of soybean oil and olive oil (weight ratio 2:1) at a weight ratio of 1:7.6, and stirred evenly to obtain the core liquid.

[0129] B. Preparation of wall material solution

[0130] In a water bath heating stirrer, 6800 parts by weight of purified water were heated to 54°C, and then 100 parts by weight of glycerol, 100 parts by weight of konjac gum, 150 parts by weight of xanthan gum biopolymer, 21 parts by weight of calcium chloride inorganic chloride and 100 parts by weight of polyvinyl alcohol toughening agent were added and mixed evenly. The mixture was then heated to 82°C and maintained at a stirrer speed of 2000 r / min for 2.0 hours to obtain the wall material solution.

[0131] C. Microcapsule preparation

[0132] One part by weight of honey flavoring was heated to 32°C, and then two parts by weight of soybean lecithin, emulsifier, and three parts by weight of sodium alginate stabilizer were added. The mixture was stirred at 400 r / min to dissolve the flavorings and obtain a flavoring emulsion. The flavoring emulsion was added dropwise to an aqueous solution of anhydrous calcium lactate microcapsule wall material at a weight ratio of 1:1.9 and a dropping rate of 10 ml / min. The flavoring emulsion and the aqueous solution of the microcapsule wall material were contacted at a pressure of 40 Pa for 1.6 min, and a microcapsule was obtained by separation. According to the method described in this application, its particle size is 80-110 μm.

[0133] D. Dropping

[0134] Using a high-speed dripping machine, the wall material solution obtained in step B is added to the glue pot of the dripping machine and heated to 86°C. The core liquid obtained in step A is added to the fragrance tank, and the microcapsules obtained in step C are added to the microcapsule pump. Then, under the conditions of a microcapsule dripping rate of 30 capsules / second, a wall material solution flow rate of 20 ml / min, and a core liquid flow rate of 8 ml / min, they are simultaneously dripped into caprylic / capric triglyceride cooling solution for cooling, to obtain wet tobacco burst beads.

[0135] E. Cleaning and drying

[0136] According to the weight ratio of wet tobacco capsules to purified water of 1:2.2, the wet tobacco capsules obtained in step D are washed with purified water 3 times and then placed in a rotary dryer and dried at 28°C for 5 hours to obtain tobacco capsules containing microcapsules.

[0137] According to the method described in this application, the cigarette-grade burst beads contain 22 microcapsules with a diameter of 150-190 μm; the diameter of the cigarette-grade burst beads is 3.8-4.5 mm.

[0138] According to the method described in this application, cigarettes sold by Hongyun Tobacco (Group) Co., Ltd. under the trade name Yunyan were evaluated against cigarettes containing a single tobacco flavoring bead containing microcapsules prepared in this embodiment. The evaluation results are listed in Table 1. The same cigarettes were also evaluated against cigarettes containing six tobacco flavoring beads containing microcapsules prepared in this embodiment. The evaluation results are listed in Table 2.

[0139] Example 5: Preparation of the present invention containing microcapsule-containing tobacco flavoring beads

[0140] The implementation steps of this embodiment are as follows:

[0141] A. Core Fluid Preparation

[0142] At a temperature of 65°C, a mixture of watermelon flavoring and tangerine peel flavoring (weight ratio 1:2) was dissolved in rapeseed oil (vegetable oil solvent) at a weight ratio of 1:8.0 and stirred evenly to obtain the core liquid.

[0143] B. Preparation of wall material solution

[0144] In a water bath heating stirrer, 5600 parts by weight of purified water were heated to 68°C. Then, 80 parts by weight of glycerol, 200 parts by weight of sodium alginate plant gum, 130 parts by weight of a mixture of gellan gum and xanthan gum (weight ratio 2:3) biopolymer, 30 parts by weight of a mixture of potassium chloride and calcium chloride (weight ratio 3:1) inorganic chloride, and 60 parts by weight of a mixture of glycerol and sodium tripolyphosphate (weight ratio 3:1) toughening agent were added. The mixture was mixed evenly and then heated to 74°C. The mixture was kept at a stirrer speed of 1000 r / min for 1.4 hours to obtain the wall material solution.

[0145] C. Microcapsule preparation

[0146] Two parts by weight of watermelon flavoring were heated to 34°C, and then two parts by weight of polyoxyethylene xylitol anhydride stearate emulsifier and two parts by weight of a mixture of agar and sodium carboxymethyl cellulose (weight ratio 1:1) stabilizer were added. The mixture was stirred at 300 r / min to dissolve the emulsion and obtain a flavoring emulsion. The flavoring emulsion was added dropwise to a calcium chloride microcapsule wall material aqueous solution with a concentration of 4 g / ml at a weight ratio of 1:2.0 and a dropping rate of 10 ml / min. The flavoring emulsion and the microcapsule wall material aqueous solution were contacted at a pressure of 0.1 Pa for 2.0 min, and a microcapsule was obtained by separation. According to the method described in this application, its particle size is 100-130 μm.

[0147] D. Dropping

[0148] Using a single-dropper dripping machine, the wall material solution obtained in step B is added to the glue pot of the dripping machine and heated to 82°C. The core liquid obtained in step A is added to the fragrance tank, and the microcapsules obtained in step C are added to the microcapsule pump. Then, under the conditions of a microcapsule dripping rate of 26 capsules / second, a wall material solution flow rate of 18 ml / min, and a core liquid flow rate of 8 ml / min, they are simultaneously dripped into caprylic / capric triglyceride cooling solution for cooling, to obtain wet tobacco capsules.

[0149] E. Cleaning and drying

[0150] According to the weight ratio of wet tobacco capsules to purified water of 1:2.4, the wet tobacco capsules obtained in step D are washed twice with purified water and then placed in a boiling dryer and dried at 25°C for 6 hours to obtain tobacco capsules containing microcapsules.

[0151] According to the method described in this application, the cigarette-grade burst beads contain 28 microcapsules with a diameter of 110-150 μm; the diameter of the cigarette-grade burst beads is 3.8-4.5 mm.

[0152] According to the method described in this application, cigarettes sold by Hongyun Tobacco (Group) Co., Ltd. under the trade name Yunyan were evaluated against cigarettes containing a single tobacco flavoring bead containing microcapsules prepared in this embodiment. The evaluation results are listed in Table 1. The same cigarettes were also evaluated against cigarettes containing five tobacco flavoring beads containing microcapsules prepared in this embodiment. The evaluation results are listed in Table 2.

[0153] Example 6: Preparation of the present invention containing microcapsule-containing tobacco flavoring beads

[0154] The implementation steps of this embodiment are as follows:

[0155] A. Core Fluid Preparation

[0156] At a temperature of 60°C, a mixture of guava coffee flavoring and honey flavoring (weight ratio 1:1) was dissolved in olive oil vegetable oil solvent at a weight ratio of 1:7.4 and stirred evenly to obtain the core liquid.

[0157] B. Preparation of wall material solution

[0158] In a water bath heating stirrer, 7400 parts by weight of purified water were heated to 62°C. Then, 90 parts by weight of glycerol, 120 parts by weight of a mixture of konjac gum and sodium alginate (weight ratio 2:3) plant gum, 70 parts by weight of a mixture of gellan gum and xanthan gum (weight ratio 1:4) biopolymer, 24 parts by weight of a mixture of potassium chloride and calcium chloride (weight ratio 1:2) inorganic chloride, and 90 parts by weight of a mixture of sodium hexametaphosphate and polyvinyl alcohol (weight ratio 1:2) toughening agent were added. The mixture was mixed evenly and then heated to 86°C. The mixture was kept at a stirrer speed of 3000 r / min for 1.6 hours to obtain the wall material solution.

[0159] C. Microcapsule preparation

[0160] Three parts by weight of honey flavoring were heated to 38°C, and then three parts by weight of glyceryl monostearate emulsifier and four parts by weight of a mixture of modified starch and sodium alginate (weight ratio 1:1) stabilizer were added. The mixture was stirred at 200 r / min to dissolve the emulsion and obtain a flavoring emulsion. The flavoring emulsion was added dropwise to a calcium carbonate microcapsule wall material aqueous solution with a concentration of 5 g / ml at a weight ratio of 1:1.7 and a dropping rate of 10 ml / min. The flavoring emulsion and the microcapsule wall material aqueous solution were contacted at a pressure of 20 Pa for 1.0 min, and a microcapsule was obtained by separation. According to the method described in this application, its particle size is 60-90 μm.

[0161] D. Dropping

[0162] The wall material solution obtained in step B is added to the glue pot of the dripping machine and heated to 78°C. The core liquid obtained in step A is added to the fragrance tank, and the microcapsules obtained in step C are added to the microcapsule pump. Then, under the conditions of microcapsule dripping speed of 28 capsules / second, wall material solution flow rate of 16 ml / min and core liquid flow rate of 9 ml / min, they are simultaneously dripped into caprylic / capric triglyceride cooling liquid for cooling to obtain wet tobacco capsules.

[0163] E. Cleaning and drying

[0164] According to the weight ratio of wet tobacco capsules to purified water of 1:2.6, the wet tobacco capsules obtained in step D are washed with purified water 3 times and then placed in a rotary dryer and dried at 30°C for 4 hours to obtain tobacco capsules containing microcapsules.

[0165] According to the method described in this application, the cigarette-grade burst beads contain 30 microcapsules with a diameter of 130-170 μm; the diameter of the cigarette-grade burst beads is 3.8-4.5 mm.

[0166] According to the method described in this application, cigarettes sold by Hongyun Tobacco (Group) Co., Ltd. under the trade name Yunyan and cigarettes containing a single tobacco flavoring bead containing microcapsules prepared in this embodiment were evaluated. The evaluation results are listed in Table 1. The same cigarettes and cigarettes containing three tobacco flavoring beads containing microcapsules prepared in this embodiment were also evaluated. The evaluation results are listed in Table 2.

[0167] Table 1: Evaluation results of smoking of cigarettes containing a single microcapsule of the present invention and control samples

[0168]

[0169] The evaluation results listed in Table 1 show that, compared with the control sample cigarettes, the microcapsule cigarette capsules of the present invention improve the sensory quality of the capsule cigarettes. They significantly improve the aroma quality of the cigarettes, impart a multi-layered aroma flavor, and significantly increase the persistence of the cigarette aroma, reduce the irritating aftertaste, and enhance the overall aroma quality of the cigarettes.

[0170] Table 2: Evaluation Results of Smoking of Cigarettes Containing Multiple Microcapsules of the Invention and Control Samples

[0171]

[0172] The evaluation results listed in Table 2 show that, compared with the control sample cigarettes, the microcapsule cigarette capsules of the present invention significantly improve the sensory quality of cigarettes, enhance the aroma quality, and impart more aroma and flavor. Its aroma characteristics are more pronounced, and the sensory enhancements such as the coordination, persistence, and layering of the multi-capsule cigarettes are very obvious, resulting in a richer overall aroma quality of cigarettes.

Claims

1. A method for preparing cigarette flavoring beads containing microcapsules, characterized in that... The preparation steps of this method are as follows: A. Core Fluid Preparation Under conditions of 50-65℃, two or more fragrances are dissolved in vegetable oil solvent at a weight ratio of 1:7-8 of fragrance to vegetable oil solvent, and stirred evenly to obtain the core liquid. B. Preparation of wall material solution In a water bath heating stirrer, 5000-8000 parts by weight of purified water are heated to 50-70°C. Then, 50-100 parts by weight of glycerol, 100-200 parts by weight of plant gum, 50-150 parts by weight of biopolymer, 15-30 parts by weight of inorganic chloride and 50-100 parts by weight of toughening agent are added and mixed evenly. The mixture is then heated to 70-90°C and maintained at a stirrer speed of 2000-3000 r / min for 1-2 hours to obtain the wall material solution. C. Microcapsule preparation 1-3 parts by weight of fragrance are heated to 30-40°C, then 1-3 parts by weight of emulsifier and 2-4 parts by weight of stabilizer are added. The mixture is stirred at 100-500 r / min to dissolve the fragrance and obtain a fragrance emulsion. The fragrance emulsion is added dropwise to a microcapsule wall material aqueous solution with a concentration of 1-10 g / ml at a weight ratio of 1:1.5-2.0 and a dropping rate of 10 ml / min. The fragrance emulsion and the microcapsule wall material aqueous solution are contacted at a pressure of 0.1-100 Pa for 1.0-2.0 min, and microcapsules with a particle size of 50-150 μm are obtained. D. Drip Using a dripping machine, the wall material solution obtained in step B is added to the glue pot of the dripping machine and heated to a temperature of 70-90°C. The core liquid obtained in step A is added to the fragrance tank, and the microcapsules obtained in step C are added to the microcapsule pump. Then, under the conditions of a microcapsule dripping rate of 15-30 capsules / second, a wall material solution flow rate of 12-20 ml / min, and a core liquid flow rate of 7-10 ml / min, they are simultaneously dripped into caprylic / capric triglyceride cooling solution for cooling to obtain wet tobacco capsules. E. Cleaning and drying The wet tobacco bursting beads obtained in step D are washed with pure water 2-3 times according to a weight ratio of 1:2.0-3.0 to 1:2.

0. Then, they are dried in a dryer at a temperature of 25-30°C for 4-6 hours to obtain tobacco bursting beads containing microcapsules. The tobacco bursting beads contain 15-30 microcapsules with a diameter of 100-200 μm. The diameter of the tobacco bursting beads is 3.8-4.5 mm.

2. The preparation method according to claim 1, characterized in that... In steps A and C, the flavoring is one or more flavorings selected from watermelon, tangerine peel, guava, or honey flavorings; the vegetable oil is one or more vegetable oils selected from soybean oil, peanut oil, rapeseed oil, or olive oil.

3. The preparation method according to claim 1, characterized in that... In step B, the plant gum is one or more plant gums selected from carrageenan, agar, konjac gum, or sodium alginate.

4. The preparation method according to claim 1, characterized in that... In step B, the biopolymer is gellan gum or xanthan gum.

5. The preparation method according to claim 1, characterized in that... In step B, the inorganic chloride is potassium chloride or calcium chloride.

6. The preparation method according to claim 1, characterized in that... In step B, the toughening agent is one or more toughening agents selected from glycerol, sodium hexametaphosphate, sodium tripolyphosphate, or polyvinyl alcohol.

7. The preparation method according to claim 1, characterized in that... In step C, the microcapsule wall material is one or more wall materials selected from chitosan, modified starch, or sodium alginate.

8. The preparation method according to claim 1, characterized in that... In step C, the emulsifier is one or more emulsifiers selected from soybean lecithin, polyoxyethylene xylitol anhydride stearate or glyceryl monostearate, and the stabilizer is one or more stabilizers selected from agar, sodium carboxymethyl cellulose, modified starch or sodium alginate.

9. The preparation method according to claim 1, characterized in that... In step C, the wall material solution is one or more wall material solutions selected from anhydrous calcium lactate, calcium chloride, or calcium carbonate.

10. The preparation method according to claim 1, characterized in that... In step D, the dripping machine is a single-drip-head dripping machine, a multi-drip-head dripping machine, a pulse-type dripping machine, or a high-speed dripping machine; in step E, the dryer is a rotary drum dryer or a fluidized bed dryer.

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