CN116138488A - Natural color essence liquid for tobacco and preparation and application thereof - Google Patents
Natural color essence liquid for tobacco and preparation and application thereof Download PDFInfo
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- CN116138488A CN116138488A CN202111373562.7A CN202111373562A CN116138488A CN 116138488 A CN116138488 A CN 116138488A CN 202111373562 A CN202111373562 A CN 202111373562A CN 116138488 A CN116138488 A CN 116138488A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
- A24B15/26—Use of organic solvents for extraction
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/12—Steaming, curing, or flavouring tobacco
Abstract
The invention discloses a tobacco refined liquid separation extraction method and application. The method adopts a multi-element solvent system, and can extract most tobacco pigment while extracting tobacco fragrance components, and the refined separating liquid can be used for dyeing and perfuming cigarette paper, tipping paper, forming paper, filter tip parts and the like, thereby being beneficial to improving the taste and smoking quality of cigarettes.
Description
Technical Field
The invention relates to a tobacco refined liquid separation extraction method and application, and belongs to the field of cigarettes.
Background
Tobacco waste such as tobacco leaves, tobacco stems and tobacco dust contains a large amount of tobacco aroma substances, and the tobacco waste can be used for flavoring tobacco products after being extracted, so that the value of the tobacco waste is greatly improved. But at the same time the natural pigments contained in tobacco are ignored, which can also be used, for example, for color cigarette papers which have been raised in recent years. The existing colored cigarette paper is mainly dyed by adopting synthetic pigment or natural pigment, heavy metal of the cigarette paper is generally out of standard due to the use of the synthetic pigment, and meanwhile, the synthetic pigment can be cracked to generate other intermediate cracking products in the cigarette combustion process, so that the safety of the cigarette is affected; the natural pigment generally has the problems of poor heat resistance, poor color stability and the like, and is mostly derived from other plants and is difficult to match with the flavor characteristics of tobacco, so that the natural pigment can negatively influence the sensory quality of cigarettes after being added into cigarette paper. The natural pigment contained in the tobacco leaves can effectively avoid the defects, is derived from the tobacco, does not adversely affect the smoke sense, and can improve the smoking quality of the cigarettes.
The tobacco extracts adopted in the prior researches are mostly extracted by adopting water as a solvent, and natural pigments in the tobacco are difficult to extract while the tobacco flavor substances are extracted, and if the tobacco extracts are dyed, the color is low, so that the natural color of the tobacco cannot be reflected. Therefore, a new extraction method is developed to obtain the essence liquid with the natural color and the natural aroma of the tobacco, and the essence liquid is used in cigarette products, and has remarkable advantages and wide application prospect.
Disclosure of Invention
The first aim of the invention is to provide a preparation method of natural color essence liquid for tobacco, which aims to prepare the essence liquid (extract) with special fragrance of neophytadiene and good natural color effect.
The second aim of the invention is to provide the tobacco natural color essence liquid prepared by the preparation method.
The third object of the invention is to provide the application of the tobacco natural color essence liquid prepared by the preparation method in tobacco products and the prepared natural color tobacco and parts thereof.
The invention tries to provide a tobacco extract which gives consideration to the natural color and the natural aroma of tobacco, however, the early development of the technology often faces the following technical problems: (1) The novel diene aroma substances in the natural diene aroma substances are difficult to effectively extract, and the aroma effect is difficult to realize; (2): the natural color dyeing effect is difficult to be effectively exerted; (3) The surface carbon is easy to appear during combustion, and the sensory and suction taste is affected. Aiming at the preparation difficulty, the invention provides the following solutions through intensive researches:
the preparation method of the tobacco natural color essence liquid comprises the steps of placing tobacco raw materials into an extraction solvent for extraction to prepare the tobacco natural color essence liquid:
the extraction solvent is a mixed solvent of ethanol, water and n-hexane, wherein the volume percentage of the ethanol is 60-95%; the volume percentage of the n-hexane is 2-10%, and the balance is water.
According to the research of the invention, the synergistic effect can be realized by adopting the components and the extraction solvent with the volume ratio, the neophytadiene aromatic substances in the tobacco raw material can be effectively extracted, the pigment and the sugar extraction can be effectively controlled accidentally, the natural color dyeing effect can be improved, and the problem of carbon accumulation on the combustion surface can be effectively solved. The extraction process can achieve the aim of taking the natural color and the natural fragrance into account.
In the invention, the tobacco raw material can be any part in tobacco plants and products thereof.
The tobacco raw material is at least one of tobacco leaves, tobacco stems and tobacco dust. The tobacco raw material can also be waste materials containing at least one of tobacco leaves, tobacco stems and tobacco dust.
In the present invention, the tobacco raw material may be subjected to pulverization treatment. For example, the tobacco material may have a size of 10-200 mesh.
In the invention, the control of the extraction solvent component and the volume concentration is the key of realizing the natural color and the neophytadiene fragrance in a synergistic way and avoiding carbon deposition.
Preferably, in the extraction solvent, the volume percentage of ethanol is 75-86%; the volume percentage of the n-hexane is 5-8%, and the balance is water.
In the invention, the extraction can be 1-N sections of extraction, and N is more than or equal to 2; preferably a two-stage extraction.
The two sections are for example: carrying out first-stage extraction on tobacco raw materials and an extraction solvent in advance to obtain first-stage extraction liquid and first-stage slag, and carrying out second-stage extraction on the first-stage slag and a new extraction solvent to obtain second-stage extraction liquid and second-stage slag; and combining the first-stage extracting solution and the second-stage extracting solution to obtain the extracting solution.
Preferably, the temperature of the extraction process is 30-50 ℃.
Preferably, the single-stage extraction time is 0.5 to 4 hours.
In the invention, the extracting solution obtained by extraction is stood and settled at the temperature of-20-0 ℃ to obtain supernatant, and the supernatant is concentrated after passing through a macroporous resin column to obtain the natural-color essence liquid.
Preferably, the sedimentation time is 6 to 24 hours.
In the invention, the solution flowing through the macroporous resin is concentrated, and the concentration degree can be adjusted according to actual needs. For example, the concentrate can be concentrated to a solids content of 40% to 60% of the natural color base flavor split.
The preferred extraction process of the invention is: mixing and stirring the crushed tobacco raw materials and the extraction solvent, heating to 30-50 ℃ for reaction for 0.5-4 hours, and filtering out the extraction liquid for later use. Then adding the solvent with the same volume, continuously heating to 30-50 ℃ for reaction for 0.5-4 hours, and combining the two obtained extracting solutions. Standing at-20-0deg.C for settling for 6-24 hr, separating out supernatant, and further subjecting to adsorption and desorption treatment with macroporous resin column to remove macromolecular substances. Concentrating to obtain dark brown tobacco essence liquid with strong tobacco fragrance, wherein the solid content is 40% -60%.
According to a further preferred scheme of the invention, small molecular organic acid is added into the natural color essence liquid. It is found that the addition of certain organic acid helps to improve the natural color and fragrance effect, and in addition, helps to further improve the smoking taste.
Preferably, the small molecule organic acid is one or more of citric acid, malic acid, tartaric acid, lactic acid, acetic acid and the like;
preferably, the adding amount of the small molecular organic acid is 0.01-0.1% based on the weight of the natural color essence liquid.
The invention also provides the tobacco natural color essence liquid prepared by the preparation method.
In the invention, the refined liquid obtained by extraction through the preparation method contains special components and contents endowed by the preparation method, and in addition, the refined liquid has the special fragrance of neophytadiene and the original fragrance of tobacco, and the problem of carbon deposition during combustion can be avoided.
The invention also provides application of the natural-color essence liquid of the tobacco prepared by the preparation method in preparation of tobacco products.
Preferably, the tobacco product is a burning cigarette;
preferably, the composition is compounded in at least one cigarette component of cigarette paper, tipping paper, forming paper and filter tip, and is used for preparing the cigarette component with the natural color and/or the natural aroma of tobacco. In the invention, the refined liquid prepared by the preparation method is used for dyeing and perfuming cigarette paper, tipping paper, forming paper, filter tip parts and the like, thereby being beneficial to improving the taste and smoking quality of cigarettes.
Preferably, it is applied to the cigarette component by coating, spraying or dipping.
The application of the invention is used for preparing the natural color and natural fragrance cigarette paper of tobacco, and comprises the following steps:
diluting the tobacco essence with water until the solid content is 20-40%, coating on cigarette paper, oven drying, rolling, and cutting to obtain natural color and original aroma rollTobacco paper; the coating weight is preferably 0.5-5g/m 2 ；
And/or, the method is used for preparing the natural color and natural aroma tipping paper of the tobacco, and comprises the following steps: diluting the tobacco refined separating liquid with water until the solid content is 5-20%, coating the tobacco refined separating liquid on the inner side of tipping paper, drying, rolling and cutting to obtain the natural-color and original-flavor tipping paper of the tobacco; the coating weight is preferably 0.5-2g/m 2 ；
And/or preparing the natural color and natural fragrance forming paper of the tobacco by the following steps: diluting the tobacco refined separating liquid with water until the solid content is 5-10%, spraying on the molding paper, oven drying, rolling, cutting to obtain the final product, preferably 0.5-2g/m 2 ；
And/or preparing the natural color and natural fragrance filter stick of the tobacco, which comprises the following steps: diluting the tobacco refined separating liquid with water until the solid content is 20-40%, immersing the filter stick in the refined separating liquid for 1-2h, taking out, drying, cutting, and forming with common filter stick in a compounding way to obtain the natural-color and original-fragrance filter stick of tobacco.
The invention also provides the natural-color natural-flavor cigarette paper of the tobacco, which comprises the cigarette paper and the natural-color natural-flavor tobacco extract prepared by the preparation method compounded on the surface of the cigarette paper.
The invention discloses a natural-color and natural-fragrance cigarette paper of tobacco, which is prepared by the following steps:
diluting the tobacco refined liquid with water until the solid content is 20-40%, coating the tobacco refined liquid on cigarette paper, drying, rolling and cutting to obtain the natural-color natural-flavor cigarette paper; the coating weight is preferably 0.5-5g/m 2 。
The invention also provides the tobacco natural-color natural-flavor tipping paper which is characterized by comprising tipping paper and the tobacco natural-color natural-flavor extract prepared by the preparation method compounded on the surface of the tipping paper;
the preferred natural color and natural fragrance tipping paper for tobacco is prepared by the following steps:
diluting the tobacco refined separating liquid with water until the solid content is 5-20%, coating the tobacco refined separating liquid on the inner side of tipping paper, drying, rolling and cutting to obtain the natural-color and original-flavor tipping paper of the tobacco; the coating weight is preferably 0.5-2g/m 2 。
The invention also provides a piece of natural-color natural-flavor forming paper for tobacco, which comprises forming paper and the natural-color natural-flavor extract of the tobacco, wherein the natural-color natural-flavor extract of the tobacco is prepared by the preparation method and compounded on the surface of the forming paper;
the preferred natural-color and natural-fragrance forming paper for tobacco is prepared by the following steps:
diluting the tobacco refined separating liquid with water until the solid content is 5-10%, spraying on the molding paper, oven drying, rolling, cutting to obtain the final product, preferably 0.5-2g/m 2 。
The invention also provides a tobacco natural color and natural aroma filter stick, which comprises a filter fiber round stick and the tobacco natural color and natural aroma extract prepared by the preparation method compounded in the filter fiber round stick;
the preferred tobacco natural color and natural fragrance filter stick is prepared by the following steps:
diluting the tobacco refined separating liquid with water until the solid content is 20-40%, immersing the filter stick in the refined separating liquid for 1-2h, taking out, drying, cutting, and forming with common filter stick in a compounding way to obtain the natural-color and original-fragrance filter stick of tobacco. .
The invention also provides a combustion type cigarette with the natural color and the natural aroma, which comprises at least one material of the natural color and the natural aroma cigarette paper, the natural color and natural aroma tipping paper, the natural color and natural aroma forming paper and the natural color and natural aroma filter stick.
The beneficial effects are that:
the invention utilizes the cooperation of ethanol, water and normal hexane, and further cooperates with the joint control of the proportion, can effectively extract the neophytadiene aromatic substances in the tobacco raw material, can also accidentally and effectively control the extraction of pigment and sugar, can improve the natural color dyeing effect, and can also effectively solve the problem of carbon deposition on the combustion surface. The extraction process can achieve the aim of taking the natural color and the natural fragrance into account.
The tobacco essence liquid prepared by the method can be applied to the preparation of natural-color and natural-fragrance cigarette paper, tipping paper, forming paper and filter sticks of tobacco, so that the cigarette product has new appearance and style characteristics. The extraction method is simple in process and convenient for large-scale production, meanwhile, the tobacco essence separating liquid is derived from tobacco, no additional addition is caused, and the cigarette product has no safety risk.
Drawings
Fig. 1 is a graph before and after dyeing in example 1 (left, fine cigarette) and example 2 (right, middle cigarette);
FIG. 2 is a gas chromatogram of the finely divided neophytadiene obtained in example 1, comparative example 2;
FIG. 3 is a combustion chart of cigarettes of the roll paper of example 1 and comparative example 3;
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention further.
Example 1
1000g of tobacco powder with the particle size of 50 meshes is taken and dispersed in 7000ml of mixed solvent consisting of ethanol (5500 ml), water (1000 ml) and normal hexane (500 ml), the temperature is slowly raised to 45 ℃, the mixture is kept for 2 hours, then cooled and kept stand, 3800ml of upper extract is separated, 3800ml of the mixed solvent is continuously added into slag, the heat preservation is continued for 2 hours at 45 ℃, and the two batches of upper extract are combined. Freezing at-20deg.C for 24 hr, suction filtering to remove precipitate, and concentrating the clear liquid (filtrate) with macroporous resin chromatographic column to obtain tobacco extract A1200 ml with solid content of 50%. The main chemical composition of the product was tested, wherein the sugar content was 32% and the total alkali content was 2%. GC was performed to determine a neophytadiene content of 0.45%.
Adding into the refined liquid A
And diluting the concentrate with water to a solids content of 25%. Coating the natural-color natural-flavor cigarette paper on the cigarette paper by a coating machine at a coating speed of 1m/s, drying at 120 ℃, rolling, cutting to obtain the natural-color natural-flavor cigarette paper with an actual measured coating amount of 2.1g/m 2 . The cigarette paper is unfolded after being placed for 24 hours, and the cigarette paper is found to be uniform in color and luster, smooth in paper and free of adhesion phenomenon. The cigarette paper is used for preparing cigarettes (cigarettes)The herbal natural-color fragrant cigarette paper presents golden yellow of tobacco, has uniform color, has no sticky hand feeling, and is shown in figure 1 (left graph). The natural-color natural-flavor cigarette paper of the tobacco presents the golden color of the tobacco, which shows that the dyeing effect of increasing the coating amount of the tobacco essence components is better. Compared with the sensory quality of the white cigarette paper control cigarette, the cigarette manufactured by the cigarette paper test has larger aroma concentration and richer aroma, and particularly the original faint scent type characteristic of the control cigarette is more outstanding, the appearance quality is kept stable, and the overall sensory quality is obviously improved.
Example 2:
compared with example 1, the method only differs in that the ratio of the extraction solvent is adjusted, and the specific implementation process is as follows:
1000g of tobacco powder with the particle size of 50 meshes is taken and dispersed in 7000ml of mixed solvent consisting of ethanol (6000 ml), water (600 ml) and normal hexane (400 ml), the temperature is slowly raised to 45 ℃, the heat preservation treatment is carried out for 2 hours, cooling and standing are carried out, 3700ml of upper extract is separated, 3700ml of the mixed solvent is added into slag, the heat preservation is continued for 2 hours at 45 ℃, and the two batches of upper extract are combined. Freezing at-20deg.C for 24 hr, suction filtering to remove precipitate, and concentrating the clear liquid (filtrate) with macroporous resin chromatographic column to obtain tobacco extract B1100 ml with solid content of 50%. The main chemical composition of the product is detected, wherein the sugar content is 30% and the total alkali content is 2%. GC was performed to determine a neophytadiene content of 0.42%.
Adding the prepared refined liquid B
And the concentrate was diluted with water to a solids content of 25%. Coating the natural-color natural-flavor cigarette paper on the cigarette paper by a coating machine at a coating speed of 1m/s, drying at 120 ℃, rolling, cutting to obtain the natural-color natural-flavor cigarette paper with an actual measured coating amount of 2.0g/m 2 . The cigarette paper is unfolded after being placed for 24 hours, and the cigarette paper is found to be uniform in color and luster, smooth in paper and free of adhesion phenomenon. The natural-color and natural-fragrance cigarette paper made of the paper has golden yellow color, uniform color and luster, no stickiness, and the product is shown in figure 1 (right figure of figure 1). Cigarette with smokeThe herbal natural-color fragrant cigarette paper presents the golden color of the tobacco, which shows that the dyeing effect of increasing the coating amount of the tobacco essence components is better. Compared with the sensory quality of the white cigarette paper control cigarette, the cigarette manufactured by the cigarette paper test has larger aroma concentration and richer aroma, and particularly the original faint scent type characteristic of the control cigarette is more outstanding, the appearance quality is kept stable, and the overall sensory quality is obviously improved.
Example 3
The tobacco concentrate A prepared in example 1 was added
Diluting with water to solid content of 20%, coating on the inner side of tipping paper with coating speed of 1.5m/s by using a coating machine, drying at 130deg.C, rolling, cutting to obtain natural color and natural fragrance tipping paper with measured coating amount of 1.5g/m 2 . The cigarettes are prepared by adopting the natural color tipping paper of the tobacco, compared with the sensory quality of the control cigarettes, the cigarettes made by the natural color and natural color tipping paper are higher in aroma concentration, richer in aroma and stable in appearance quality, and the overall sensory quality of the cigarettes is remarkably improved.
Example 4
The tobacco concentrate A prepared in example 1 was added
Diluting with water to solid content of 10%, spraying onto forming paper, oven drying at 110deg.C, rolling, cutting to obtain natural-color and natural-fragrance forming paper with actual spraying amount of 0.6g/m 2 . The cigarette is prepared by adopting the cigarette herbal aroma forming paper, compared with the sensory quality of a control cigarette, the cigarette which is made by the natural color and original aroma forming paper in a trial mode has larger aroma concentration, richer aroma and stable appearance quality, and the overall sensory quality of the cigarette is remarkably improved.
Example 5
The tobacco concentrate A prepared in example 1 was added
Is diluted with waterReleasing until the solid content is 25%, placing the filter stick in diluted tobacco refined liquid for 24 hours, drying at 130 ℃, cutting to 8mm for one section, and compounding to obtain the natural-color and original-flavor filter stick of the tobacco. The natural-color natural-flavor filter stick of the tobacco is adopted to prepare the cigarettes, compared with the sensory quality of the traditional acetate fiber filter stick control cigarettes, the cigarettes which are made by the natural-color natural-flavor filter stick are higher in aroma concentration, richer in aroma and stable in appearance quality, and the overall sensory quality is remarkably improved.
Example 6
The difference compared with example 1 is that the dyed cigarette paper and the cigarette were produced directly in the same manner as in example 1, except that the organic acid (citric acid) was not added to the refined liquid a.
The method comprises the following steps: the concentrate A obtained in example 1 was diluted directly with water to a solids content of 25%. Coating the natural-color natural-flavor cigarette paper on the cigarette paper by a coating machine at a coating speed of 1m/s, drying at 120 ℃, rolling, cutting to obtain the natural-color natural-flavor cigarette paper with an actual measured coating amount of 2.1g/m 2 . Compared with the sensory quality of white cigarette paper (blank control, namely undyed) control cigarettes, the cigarette manufactured by the cigarette paper has larger aroma concentration and richer aroma, and particularly the original faint scent characteristic of the control cigarettes is more prominent, the appearance quality is stable, but the irritation of smoke is improved, and the overall smoking quality is reduced.
Comparative example 1
The difference compared with example 1 is that no n-hexane is added to the extraction solvent, and the steps are as follows:
1000g of tobacco powder with the particle size of 50 meshes is taken and dispersed in 7000ml of mixed solvent consisting of ethanol (5500 ml) and water (1500 ml), the temperature is slowly raised to 45 ℃, the mixture is refluxed for 2 hours, the mixture is cooled and placed still, 3800ml of upper extract is separated, 3800ml of the mixed solvent is added, the reflux is continued for 2 hours at 45 ℃, and the two batches of upper extract are combined. Freezing at-20deg.C for 24 hr, suction filtering to remove precipitate, separating the supernatant with chromatographic column, and concentrating to obtain refined tobacco separating liquid C1350 ml with solid content of 50%. The main chemical composition of the product is detected, wherein the sugar content is 31 percent, and the total alkali content is 2 percent. GC was performed to determine a neophytadiene content of 0.03%.
Cigarette paper and cigarette preparation were performed as in example 1. Compared with the sensory quality of the white cigarette paper control cigarette, the fragrance concentration of the cigarette made by the cigarette paper is improved, but the faint scent characteristic is eliminated, and the smoking style of the cigarette is changed. The gas chromatography test shows that the content of neophytadiene with faint scent type characteristic in the refined liquid is extremely low, and the detail is shown in figure 2b.
Comparative example 2
The only difference compared to example 1 is that the normal hexane is replaced by an equal volume of ethyl acetate, the steps are;
1000g of tobacco powder with the particle size of 50 meshes is taken and dispersed in 7000ml of mixed solvent consisting of ethanol (5500 ml), water (1000 ml) and ethyl acetate (500 ml), the temperature is slowly raised to 45 ℃, the heat preservation treatment is carried out for 2 hours, cooling and standing are carried out, 3600ml of upper extract is separated, 3600ml of the mixed solvent is added into slag, the treatment is continued for 2 hours at 45 ℃, and two batches of upper extract are combined. Freezing at-20deg.C for 24 hr, suction filtering to remove precipitate, separating the supernatant with chromatographic column, and concentrating to obtain refined tobacco separating liquid D1200 ml with solid content of 50%. The main chemical composition of the product was tested, wherein the sugar content was 32% and the total alkali content was 2%. GC was performed to determine a neophytadiene content of 0.12%.
Cigarette paper and cigarette preparation were performed as in example 1. Compared with the sensory quality of a white cigarette paper (undyed) control cigarette, the fragrance concentration of the cigarette made by the cigarette paper is improved, but the fragrance characteristic is obviously lower than that of the cigarette in the embodiment 1, and the smoking style of the cigarette is changed. The content of neophytadiene with faint scent type characteristic in the refined liquid is obviously lower than that in the embodiment 1 through gas chromatography test, and the detail is shown in the figure 2c.
Comparative example 3
The only difference compared with example 1 is that the content of the extraction solvent is not controlled within the scope of the present invention, the steps are:
1000g of tobacco powder with the particle size of 50 meshes is taken and dispersed in 7000ml of mixed solvent consisting of ethanol (3500 ml), water (3000 ml) and normal hexane (500 ml), the temperature is slowly raised to 45 ℃, the heat preservation is carried out for 2 hours, cooling and standing are carried out, 3900ml of upper extract is separated, 3900ml of the mixed solvent is added into slag, the heat preservation is continued for 2 hours at 45 ℃, and two batches of upper extract are combined. Freezing at-20deg.C for 24 hr, suction filtering to remove precipitate, separating the supernatant with chromatographic column, and concentrating to obtain tobacco refined solution E1500 ml with solid content of 50%. The main chemical composition of the product was tested, wherein the sugar content was 43% and the total alkali content was 2%.
Cigarette paper and cigarette preparation were performed as in example 1. Compared with the sensory quality of a white cigarette paper (blank control, namely undyed) control cigarette, the cigarette manufactured by the cigarette paper has larger aroma concentration and richer aroma, and particularly the original faint scent characteristic of the control cigarette is more prominent, but compared with a control sample, the appearance of the cigarette paper has wider and blackened carbon line during the burning of the cigarette, and the appearance quality is reduced. See figure 3 for details.
Claims (18)
1. The preparation method of the natural-color tobacco essence liquid is characterized in that the natural-color tobacco essence liquid is prepared by extracting tobacco raw materials in an extraction solvent:
the extraction solvent is a mixed solvent of ethanol, water and n-hexane, wherein the volume percentage of the ethanol is 60-95%; the volume percentage of the n-hexane is 2-10%, and the balance is water.
2. The method for preparing the natural color and natural aroma extract of tobacco according to claim 1, wherein the volume percentage of ethanol in the extraction solvent is 60-95%; the volume percentage of the n-hexane is 2-10%, and the balance is water.
3. The method for preparing the natural color and natural aroma extract of tobacco according to claim 1, wherein the tobacco raw material is at least one of tobacco leaves, tobacco stems and tobacco dust;
preferably, the tobacco material is 10-200 mesh in size.
4. The method for preparing a natural color and natural aroma extract of tobacco according to claim 1, wherein the extraction process is two-stage extraction.
5. A method of preparing a natural tobacco aroma extract according to claim 3, wherein the extraction process is carried out at a temperature of 30-50 ℃, preferably for a single extraction time of 0.5-4 hours.
6. The method for preparing the natural-color natural-flavor extract of tobacco according to claim 1, wherein the extract obtained by extraction is subjected to standing sedimentation at the temperature of-20-0 ℃ to obtain a supernatant, and the supernatant is concentrated after passing through a macroporous resin column to obtain the natural-color natural-flavor extract.
7. The method of claim 6, wherein the settling time is from 6 to 24 hours.
8. The method of claim 6, wherein the natural color essence has a solids content of 40% -60%.
9. A method of preparing a natural color and natural aroma extract of tobacco according to any one of claims 1 to 8, wherein a small molecular organic acid is added to the natural color and natural aroma extract.
10. The method for preparing the natural color and natural aroma extract of tobacco according to claim 9, wherein the small molecular organic acid is one or more of citric acid, malic acid, tartaric acid, lactic acid, acetic acid and the like;
preferably, the adding amount of the small molecular organic acid is 0.01-0.1% based on the weight of the natural color essence liquid.
11. A tobacco natural color essence liquid prepared by the preparation method of any one of claims 1 to 10.
12. Use of a natural tobacco color essence liquid prepared by the method of any one of claims 1 to 10 for the preparation of tobacco products;
preferably, the tobacco product is a burning cigarette;
preferably, the composite material is compounded in at least one cigarette component of cigarette paper, tipping paper, forming paper and filter tip, and is used for preparing the cigarette component with the natural color and/or the natural aroma of tobacco;
preferably, it is applied to the cigarette component by coating, spraying or dipping.
13. The use according to claim 12 for the preparation of a tobacco natural color, natural-flavor cigarette paper, comprising the steps of:
diluting the tobacco refined liquid with water until the solid content is 20-40%, coating the tobacco refined liquid on cigarette paper, drying, rolling and cutting to obtain the natural-color natural-flavor cigarette paper; the coating weight is preferably 0.5-5g/m 2 ；
And/or, the method is used for preparing the natural color and natural aroma tipping paper of the tobacco, and comprises the following steps: diluting the tobacco refined separating liquid with water until the solid content is 5-20%, coating the tobacco refined separating liquid on the inner side of tipping paper, drying, rolling and cutting to obtain the natural-color and original-flavor tipping paper of the tobacco; the coating weight is preferably 0.5-2g/m 2 ；
And/or preparing the natural color and natural fragrance forming paper of the tobacco by the following steps: diluting the tobacco refined separating liquid with water until the solid content is 5-10%, spraying on the molding paper, oven drying, rolling, cutting to obtain the final product, preferably 0.5-2g/m 2 ；
And/or preparing the natural color and natural fragrance filter stick of the tobacco, which comprises the following steps: diluting the tobacco refined separating liquid with water until the solid content is 20-40%, immersing the filter stick in the refined separating liquid for 1-2h, taking out, drying, cutting, and forming with common filter stick in a compounding way to obtain the natural-color and original-fragrance filter stick of tobacco.
14. The natural-color and natural-flavor cigarette paper for tobacco is characterized by comprising cigarette paper and the natural-color and natural-flavor tobacco extract prepared by the preparation method of any one of claims 1-10 compounded on the surface of the cigarette paper;
preferably, it is prepared by the steps of:
diluting the tobacco refined liquid with water until the solid content is 20-40%, coating the tobacco refined liquid on cigarette paper, drying, rolling and cutting to obtain the natural-color natural-flavor cigarette paper; the coating weight is preferably 0.5-5g/m 2 。
15. A tobacco natural color and natural aroma tipping paper, which is characterized by comprising tipping paper and the tobacco natural color and natural aroma extract prepared by the preparation method of any one of claims 1 to 10 compounded on the surface of the tipping paper;
preferably, it is prepared by the steps of:
diluting the tobacco refined separating liquid with water until the solid content is 5-20%, coating the tobacco refined separating liquid on the inner side of tipping paper, drying, rolling and cutting to obtain the natural-color and original-flavor tipping paper of the tobacco; the coating weight is preferably 0.5-2g/m 2 。
16. A tobacco natural-color and natural-flavor forming paper, which is characterized by comprising forming paper and the tobacco natural-color and natural-flavor extract prepared by the preparation method of any one of claims 1 to 10 compounded on the surface of the forming paper;
preferably, it is prepared by the steps of:
diluting the tobacco refined separating liquid with water until the solid content is 5-10%, spraying on the molding paper, oven drying, rolling, cutting to obtain the final product, preferably 0.5-2g/m 2 。
17. A tobacco natural color and natural aroma filter rod, which is characterized by comprising a filter fiber round rod and the tobacco natural color and natural aroma extract prepared by the preparation method of any one of claims 1 to 10 compounded in the filter fiber round rod;
preferably, it is prepared by the steps of:
diluting the tobacco refined separating liquid with water until the solid content is 20-40%, immersing the filter stick in the refined separating liquid for 1-2h, taking out, drying, cutting, and forming with common filter stick in a compounding way to obtain the natural-color and original-fragrance filter stick of tobacco.
18. The combustion type cigarette with the natural color and the natural aroma of the tobacco is characterized by comprising at least one material of the cigarette paper with the natural color and the natural aroma of the tobacco, the tipping paper with the natural color and the natural aroma of the tobacco, the forming paper with the natural color and the natural aroma of the tobacco, and the filter stick with the natural color and the natural aroma of the tobacco, which are described in claim 14, 15, 16 and 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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