Preparation method of novel Zimbabwe tobacco extract
Zimbabwe tobacco extract was prepared by enzymatic lysis, steam distillation and molecular distillation, which solved the problem that product quality depends on the quality of tobacco leaves in the existing method, and achieved the natural aroma and sweetness in the cigarette, which significantly improved the quality of the cigarette.
Patent Information
- Application Number
- CN202311573216.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-23
- Publication Date
- 2025-05-23
AI Technical Summary
The existing Zimbabwean tobacco extract preparation method has the problem that product quality depends on the quality of tobacco leaves, and it is difficult to maintain natural aroma and sweetness when used in cigarettes, resulting in a decline in cigarette quality.
Zimbabwe tobacco extract was prepared by enzymatic lysis, steam distillation and molecular distillation. The specific steps include: mixing the tobacco powder with solvent and composite enzyme for enzymatic decomposition, then distillation and condensation, and finally molecular distillation under vacuum to extract the recombinant components.
Zimbabwe Tobacco Extract prepared by this method can significantly enhance the natural comfort of cigarettes, soften the smoke, reduce miscellaneous and irritating properties, and improve the quality of cigarette products.
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of extraction and separation of effective plant components, and in particular relates to a preparation method of a novel Zimbabwe tobacco extract. Background Art
[0002] In recent years, as the issue of smoking and health has attracted more and more attention, the tar content of Chinese cigarettes has been gradually reduced. However, the reduction of tar content in cigarettes will inevitably lead to the loss of the natural aroma and sweetness of cigarettes. Therefore, it is necessary to add flavors and fragrances to improve and enhance the quality of cigarettes.
[0003] At present, the largest amount of monomer flavoring used in the cigarette industry is still tobacco extract. Its application in cigarettes can effectively supplement the natural tobacco flavor of cigarettes and improve the taste. Tobacco extract is a product obtained by extracting and concentrating tobacco leaves and stems through liquid media. Its quality mainly depends on the quality of the tobacco leaves and stems themselves. Compared with tobacco leaves from other regions, Zimbabwean tobacco leaves have a higher content of aroma substances and stronger availability, and have become a hot raw material for the development of high-quality tobacco extracts.
[0004] Common methods for preparing Zimbabwe tobacco extracts include ethanol extraction, water extraction, petroleum ether extraction, and supercritical CO extraction. 2 Extraction, etc., although the corresponding products have their own characteristics in the application of cigarettes, with the continuous development of the cigarette industry, there is still an urgent need to develop new high-quality Zimbabwe tobacco extracts. Summary of the invention
[0005] The purpose of the invention is to provide a novel preparation method of Zimbabwe tobacco extract, which is simple to operate and easy to industrialize.
[0006] The purpose of the present invention is achieved through the following technical solutions.
[0007] Unless otherwise specified, all percentages used in the present invention are by weight.
[0008] A novel method for preparing Zimbabwe tobacco extract comprises the following steps: (1) Weigh a certain amount of Zimbabwean tobacco powder, add solvent and complex enzyme for enzymatic hydrolysis; (2) transferring the tobacco dust and solvent after enzymatic hydrolysis in step (1) into a distiller, condensing the mixed steam obtained by distillation through a condenser, and collecting the condensed oil-water mixture; (3) Add a certain proportion of propylene glycol to the oil-water mixture obtained in step (2), mix them evenly, perform molecular distillation, and collect the heavy components to obtain a new type of Zimbabwe tobacco extract.
[0009] In the step (1), the mass ratio of tobacco dust to solvent is preferably 1:(8-10), and the solvent is preferably water.
[0010] The enzyme preparation in step (1) is a composite enzyme consisting of protease, cellulose and pectinase, and the mass ratio of the three enzymes is preferably 1:2:1.
[0011] In the step (1), the amount of the complex enzyme used is 0.5% of the mass of the tobacco dust.
[0012] In the step (1), the enzymatic hydrolysis temperature is preferably 40-50° C., and the enzymatic hydrolysis treatment time is preferably 1-3 h.
[0013] In the step (2), the mass ratio of the oil-water mixture collected by distillation to the tobacco dust is preferably 8:1.
[0014] In the step (3), the mass ratio of the amount of propylene glycol added to the oil-water mixture is preferably 0.3:1.
[0015] The conditions for molecular distillation in step (3) are: vacuum degree 80-200 Pa, feed temperature 45° C., distillation temperature 50-60° C., and condensation temperature 5° C.
[0016] Beneficial effects of the present invention: 1. Compared with the commercially available Zimbabwe tobacco extract, the Zimbabwe tobacco extract prepared by the present invention can significantly enhance the natural and comfortable tobacco aroma of cigarettes, soften the smoke, reduce irritation, and improve the quality of cigarette products when used as a flavoring substance in the flavoring and quality improvement of cigarettes.
[0017] 2. The preparation method of the present invention can quickly prepare the Zimbabwe tobacco extract by using enzymolysis, steam distillation and molecular distillation. The preparation method of the present invention has a simple process and is easy to implement. Implementation
[0018] The present invention is further described below with specific embodiments, but the present invention is not limited to the following embodiments. Those skilled in the art can refer to the content of this article and appropriately improve the process parameters to achieve it. It is particularly important to point out that all similar replacements and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The methods and applications of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the methods and applications described herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention. Example
[0019] (1) Add tobacco dust to water (solid-liquid mass ratio of 1:8), then add 0.5% of the total mass of tobacco dust (protease, cellulose, pectinase, mass ratio of 1:2:1), and perform enzymatic hydrolysis at 50°C for 1 h; (2) the tobacco dust and solvent after enzymatic hydrolysis in step (1) are transferred into a distiller, the mixed steam obtained by distillation is condensed through a condenser, and the oil-water mixture is collected after condensation, and the mass ratio of the collected amount to the tobacco dust is 8:1; (3) Add 0.3 times of propylene glycol to the oil-water mixture obtained in step (2), mix well, and perform molecular distillation under the conditions of vacuum degree of 200 Pa, feed temperature of 45° C., distillation temperature of 60° C., and condensation temperature of 5° C., collect heavy components, and thus obtain a novel Zimbabwe tobacco extract. Example
[0020] (1) Add tobacco dust to water (solid-liquid mass ratio of 1:9), then add 0.5% of the total mass of tobacco dust (protease, cellulose, pectinase, mass ratio of 1:2:1), and perform enzymatic hydrolysis at 45°C for 2 h; (2) the tobacco dust and solvent after enzymatic hydrolysis in step (1) are transferred into a distiller, the mixed steam obtained by distillation is condensed through a condenser, and the oil-water mixture is collected after condensation, and the mass ratio of the collected amount to the tobacco dust is 8:1; (3) Add 0.3 times of propylene glycol to the oil-water mixture obtained in step (2), mix well, and perform molecular distillation under the conditions of vacuum degree of 140 Pa, feed temperature of 45° C., distillation temperature of 55° C., and condensation temperature of 5° C., collect heavy components, and thus obtain a novel Zimbabwe tobacco extract. Example
[0021] (1) Add tobacco dust to water (solid-liquid mass ratio of 1:10), then add 0.5% of the total mass of tobacco dust (protease, cellulose, pectinase, mass ratio of 1:2:1), and perform enzymatic hydrolysis at 55°C for 3 h; (2) the tobacco dust and solvent after enzymatic hydrolysis in step (1) are transferred into a distiller, the mixed steam obtained by distillation is condensed through a condenser, and the oil-water mixture is collected after condensation, and the mass ratio of the collected amount to the tobacco dust is 8:1; (3) Add 0.3 times of propylene glycol to the oil-water mixture obtained in step (2), mix well, and perform molecular distillation under the conditions of vacuum degree 80 Pa, feed temperature 45° C., distillation temperature 50° C., and condensation temperature 5° C., collect heavy components, and thus obtain a novel Zimbabwe tobacco extract. Example
[0022] Sensory evaluation experiment of Zimbabwe tobacco extract applied to cigarettes: Dissolve the Zimbabwe tobacco extract of Examples 1-3 with 70% (V / V) ethanol and spray it on tobacco shreds in a flavoring manner, with the spraying amount being 0.1% of the weight of the tobacco shreds, numbered AC in sequence. Blank control sample: Spray the same amount of 70% (V / V) ethanol on the same tobacco shreds, then place the tobacco shreds in an environment with a relative humidity of (60±2)% and a temperature of (22±1)°C for 48 hours to make cigarettes, and invite 10 flavoring engineers to evaluate the smoking. The experimental results are shown in Table 1: Table 1 Sensory evaluation results of Zimbabwe tobacco extract serial number Sensory evaluation results Blank control sample The tobacco aroma is of medium quality, the burnt wood smell is slightly heavy, the smoke is not transparent, irritating, and the aftertaste is slightly residual A The quality of tobacco flavor is improved, natural and comfortable, smoke is smooth and transparent, impurities and irritation are reduced, and the aftertaste is clean and comfortable B The quality of tobacco flavor is improved, natural and comfortable, the smoke is soft and transparent, the impurities and irritation are reduced, and the aftertaste is clean and comfortable C The quality of tobacco flavor is improved, natural and comfortable, the smoke is long and transparent, the impurities and irritation are reduced, and the aftertaste is clean and sweet The results of the smoking test show that the Zimbabwe tobacco extract prepared by the present invention can be used in the flavoring and quality improvement of cigarettes, which can significantly enhance the natural and comfortable tobacco aroma of cigarettes, soften the smoke, reduce impurities and irritation, and leave a clean and comfortable aftertaste, thus significantly improving the quality of cigarette products.
Claims
1. A method for preparing a novel Zimbabwe tobacco extract, comprising the following steps: include: (1) Weighing a certain amount of Zimbabwean tobacco powder, adding a solvent and a complex enzyme for enzymatic hydrolysis; (2) transferring the tobacco dust and solvent after enzymatic hydrolysis in step (1) into a distiller, condensing the mixed steam obtained by distillation through a condenser, and collecting the condensed oil-water mixture; (3) adding a certain proportion of propylene glycol to the oil-water mixture obtained in step (2), mixing them evenly, performing molecular distillation, and collecting heavy components; That is, a novel Zimbabwe tobacco extract is obtained.
2. The preparation method according to claim 1, It is characterized in that The mass ratio of tobacco dust to solvent in step (1) is preferably 1:(8-10).
3. The preparation method according to claim 1, It is characterized in that The enzyme preparation in step (1) is a complex enzyme composed of protease, cellulose and pectinase, and the mass ratio of the three enzymes is preferably 1:2:
1.
4. The preparation method according to claim 1, It is characterized in that In step (1), the amount of the complex enzyme is 0.5% of the mass of the tobacco dust; 5. The preparation method according to claim 1, It is characterized in that The temperature of the enzymatic hydrolysis in step (1) is preferably 40-50° C., and the treatment time of the enzymatic hydrolysis is preferably 1-3 h.
6. The preparation method according to claim 1, It is characterized in that In step (2), the mass ratio of the oil-water mixture collected by distillation to the tobacco dust is preferably 8:
1.
7. The preparation method according to claim 1, It is characterized in that In step (3), the mass ratio of the amount of propylene glycol added to the oil-water mixture is preferably 0.3:
1.
8. The preparation method according to claim 1, It is characterized in that The conditions for molecular distillation in step (3) are: vacuum degree 80-200 Pa, feed temperature 45° C., distillation temperature 50-60° C., and condensation temperature 5° C.