CN114868956B - Tobacco colorant, preparation method thereof and cigarette - Google Patents
Tobacco colorant, preparation method thereof and cigarette Download PDFInfo
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- CN114868956B CN114868956B CN202210507386.XA CN202210507386A CN114868956B CN 114868956 B CN114868956 B CN 114868956B CN 202210507386 A CN202210507386 A CN 202210507386A CN 114868956 B CN114868956 B CN 114868956B
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- tobacco
- colorant
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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
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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
Abstract
The invention relates to the technical field of additives, in particular to a tobacco colorant, a preparation method thereof and cigarettes. The preparation method of the tobacco colorant comprises the following steps: heating and melting white granulated sugar until the white granulated sugar is completely melted and the color becomes brown to obtain an anhydrous caramelized product; tobacco extract and propylene glycol were slowly added to the anhydrous caramelized product under the same heating conditions, and then a tobacco colorant was obtained. The method adopts the common method to prepare caramel, does not produce harmful components such as 4-methylimidazole and the like in the production, and is safer than the method for preparing caramel pigment by an ammonia method. The tobacco extract is added under the heating condition in the preparation process, so that the mutual dissolution of caramelized products and propylene glycol can be promoted, the coloring agent can still keep a darker color after dilution, and the flavoring effect can be achieved; therefore, the finally prepared tobacco colorant not only can improve the color, but also can improve the fragrance quality of tobacco products and reduce woody gas. The method is convenient for realizing industrial production and application.
Description
Technical Field
The invention relates to the technical field of additives, in particular to a tobacco colorant, a preparation method thereof and cigarettes.
Background
Caramel color is a tan product produced by the reaction of various sugars alone or with certain additives under high temperature conditions. The food additive is widely used in food industry such as food, beverage, brewing and the like, can make the food present bright color and attractive fragrance, and can mask unpleasant odor.
According to different production raw materials, caramel pigment is mainly divided into four types: common caramel, caustic ammonium sulfite caramel, ammonia process caramel, ammonium sulfite caramel. The common caramel pigment is a black brown substance prepared by caramelization reaction of sugar at high temperature, and the product does not contain 4-methylimidazole, so that the common caramel pigment is a relatively safe production method of the caramel pigment and is mainly used as a colorant for alcoholic beverages. Caustic sulfite caramel color is the product of the reaction of sugars with sulfite at high temperature, and is used primarily as a flavoring agent. The ammonia process caramel pigment is a dark brown substance formed by Maillard reaction and caramelization reaction of sugar compounds and ammonia compounds at high temperature, and has the advantages of high color ratio, strong colorability and low production cost, thus being widely used in brewing industry (soy sauce, vinegar, etc.). The caramel of ammonium sulfite is a black brown substance formed by sugar and ammonium sulfite at high temperature, and also contains 4-methylimidazole, and is widely used in the production of cola, soft drinks and fermented wine. National standard GB1886.64-2015 prescribes that the content of 4-methylimidazole in the caramel pigment is not more than 0.02 percent.
As a colorant for cigarette tobacco, since tobacco cut stems themselves have a certain yellowish brown color, a colorant used for coloring them needs to have a darker color to achieve a desired coloring effect, and thus ammonia caramel or ammonium sulfite caramel is generally used. However, as previously mentioned, it contains 4-methylimidazole, which presents a potential health hazard. Therefore, how to provide a tobacco colorant with good coloring effect and safety is a technical problem to be solved by the present invention.
Disclosure of Invention
In order to solve or partially solve the problems in the related art, the invention provides a tobacco colorant, a preparation method thereof and a cigarette.
First, the present invention provides a method for preparing a tobacco colorant, comprising:
step a), heating and melting white granulated sugar until the white granulated sugar is completely melted and the color becomes brown to obtain an anhydrous caramelized product;
step b) slowly adding tobacco extract and propylene glycol to the anhydrous caramelized product under the same heating conditions, and then obtaining a tobacco colorant.
Further, the heating temperature of the step a and the step b is 160-220 ℃.
Further, the tobacco extract is an extract of waste tobacco dust of flue-cured tobacco.
Further, the tobacco extract is prepared according to the following method:
mixing waste tobacco powder of flue-cured tobacco with water according to the mass ratio of 1 (8-12), and leaching under reflux condition; filtering to remove residue after leaching.
Further, the refractive index of the tobacco extract is 1.3403 + -0.0080 at 20deg.C; the density of the tobacco extract at 20 ℃ is 1.0170 +/-0.0080 g/mL.
Further, the mass ratio of the white granulated sugar, the tobacco extract and the propylene glycol is (40-60): (10-30): (10-45).
Further, the heating time in the step b is 15-30 min.
In another aspect, the invention also provides a tobacco colorant prepared according to the method of any one of the preceding claims.
In yet another aspect, the present invention also provides a cigarette comprising the tobacco colorant described above.
Further, the cigarettes are flue-cured cigarettes, mixed cigarettes or spice cigarettes.
The tobacco colorant and the preparation method thereof provided by the invention can have the following beneficial effects:
1. the method adopts the common method to prepare caramel, does not produce harmful components such as 4-methylimidazole and the like in the production, and is safer than the method for preparing caramel pigment by an ammonia method.
2. The tobacco extract is added under the heating condition in the preparation process, so that the mutual solubility of caramelized products and propylene glycol can be promoted, the coloring agent can still keep a darker color after dilution, and the flavoring effect can be achieved; therefore, the finally prepared tobacco colorant not only can improve the color and luster, has strong burnt sweet smell and increases the burnt sweet smell, but also can improve the fragrance quality of tobacco products and reduce the woody smell.
3. The method has the advantages of easily available raw materials, low cost, simple process and convenient realization of industrial production and application.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
FIG. 1 is a chromatographic fingerprint of a tobacco colorant prepared in example 1 of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the invention. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The embodiment of the invention provides a preparation method of a tobacco colorant, and the colorant prepared by the method has excellent coloring effect on tobacco, and is safe and nontoxic. Specifically, the method comprises the following steps:
step a), heating and melting white granulated sugar until the white granulated sugar is completely melted and the color becomes brown to obtain an anhydrous caramelized product;
step b) slowly adding tobacco extract and propylene glycol to the anhydrous caramelized product under the same heating conditions, and then obtaining a tobacco colorant.
The step a is a step of preparing an anhydrous caramelized product, which is prepared by heating white granulated sugar serving as a raw material under anhydrous conditions. The reason why white sugar is used as a raw material in the present invention is that, compared with glycogen such as glucose, maltose and fructose which are commonly used: first, the caramelized product is darker in color, close to that of glucose, and darker than that of maltose and fructose. Secondly, by controlling reasonable heating temperature, the caramelized product has better taste; and finally, the raw materials are easy to obtain, and the cost is low.
In addition, the white granulated sugar is directly heated without adding water in the step, and the aim is to control the water content in the whole colorant system, wherein the water content influences the shade of the color of the colorant, the caramelization reaction speed is very high, the reaction is finished after the added water is not completely evaporated, the excessive water in the system is easy to cause, and the color of the colorant is light. Therefore, in order to increase the color depth of the colorant, the embodiment of the invention does not add water in the caramelization reaction so as to control the water consumption in the whole system. In the caramelization reaction, in order to make the white granulated sugar heated more uniformly, the white granulated sugar is preferably heated while stirring.
The heating temperature in this step is preferably 160-220 ℃, and too low a temperature results in a lighter color of the caramelized product and too high a temperature results in an unpleasant bitter taste of the coke, although the color becomes darker. Further, the heating temperature is controlled to be 170-200 ℃; most preferably, the heating temperature is 180 ℃, and the caramelized product obtained at this temperature has the best taste and color.
The caramelized product obtained according to the step a is sticky, can not be directly applied to the coloring of tobacco stems of tobacco, and has light color and insignificant coloring effect if the caramelized product is directly diluted to the concentration which can be sprayed on the tobacco stems of the tobacco by using water or propylene glycol and other solvents. For this purpose, the present invention employs step b of performing a post-treatment by adding tobacco extract and propylene glycol to the anhydrous caramelized product obtained in step a, and maintaining the same heating conditions for a period of time, and then obtaining the tobacco colorant. In order to prevent the local reaction from being severe and uneven due to the disposable addition, the tobacco extract and propylene glycol should be slowly added in this step.
In the step, the main function of adding propylene glycol is diluent, and the propylene glycol has stable performance and is not easy to volatilize, so that the effect of the diluent can be effectively exerted under the heating condition. The effect of adding tobacco extract is that: the tobacco extract is an aqueous extract of tobacco, contains water, and the caramel product is easy to dissolve in water and easy to dissolve in propylene glycol after being dissolved in water, so that the effect of promoting mutual dissolution can be achieved; meanwhile, the tobacco extract is tan, so that the viscosity can be reduced and the original color can be maintained; in addition, the tobacco extract contains the aroma-imparting component of tobacco, and thus imparts a certain flavoring function to the colorant.
In this step, the addition of the tobacco extract and propylene glycol to the anhydrous caramelized product is carried out under heating conditions, which acts as follows: firstly, the sugar contained in the tobacco extract can be subjected to caramelization reaction at the temperature, so that more caramelized products are generated, and the color depth of the colorant is improved; secondly, reducing sugar and amino acid in the tobacco extract can generate Maillard reaction, and the Maillard reaction can generate more aroma components, so that the aroma enhancing function of the colorant is improved; finally, the heating process can remove the redundant moisture in the system. The heating temperature in this step is the same as in step a. The heating time is preferably 15min to 30min.
The tobacco extract of the above steps is preferably an extract of waste tobacco dust of flue-cured tobacco. A certain amount of waste tobacco dust is generated in the cigarette processing process, and the waste tobacco dust is mainly treated by a dust removal system, collected and pressed by a rod and then delivered to related departments as waste. The tobacco waste is a precious biological resource and contains rich tobacco aroma substances and other bioactive substances, so that the tobacco resource can be recycled by adopting the extract of the waste tobacco powder of the flue-cured tobacco in the step, and the production cost can be reduced.
Specifically, the preparation method of the extract of the flue-cured tobacco waste tobacco powder comprises the following steps:
mixing waste tobacco powder of flue-cured tobacco with water according to the mass ratio of 1 (8-12), and leaching under reflux condition; filtering to remove residue after leaching.
In the preparation process, firstly, the proportion of water to waste tobacco powder is controlled to be (8-12): 1, on the one hand, the leaching effect can be improved, and on the other hand, the proper water content is ensured to exert the dissolution promoting effect. The water content in the extract is increased by directly filtering without concentrating and dewatering after leaching, so as to better exert the mutual solubility of caramel and propylene glycol. The control of the final moisture content in the system can be adjusted in a subsequent heating process. The mixing ratio of the waste tobacco powder and the water of the flue-cured tobacco is more preferably 1:10. The tobacco extract preferably has the following physical index: the refractive index of the fluorescent powder is 1.3403 +/-0.0080 at 20 ℃; the density at 20℃was 1.0170.+ -. 0.0080g/mL. The tobacco extract has suitable color conditions and moisture content.
And c, heating the tobacco extract and propylene glycol under the same heating condition according to the step b to obtain the tobacco colorant. The mass ratio of the white granulated sugar, the tobacco extract and the propylene glycol is preferably (40-60): (10-30): (10-45). More preferably, the mass ratio of the white granulated sugar, the tobacco extract and the propylene glycol is (45-58): (15-29): (13-40), most preferably, the mass ratio of the white granulated sugar, the tobacco extract and the propylene glycol is 58:29:13.
Accordingly, another embodiment of the present invention also provides a tobacco colorant prepared by the above method.
From the above, the tobacco colorant and the preparation method thereof provided by the embodiment of the invention have the following advantages:
1. the method adopts the common method to prepare caramel, does not produce harmful components such as 4-methylimidazole and the like in the production, and is safer than the method for preparing caramel pigment by an ammonia method.
2. The tobacco extract is added under the heating condition in the preparation process, so that the mutual solubility of caramelized products and propylene glycol can be promoted, the coloring agent can still keep a darker color after dilution, and the flavoring effect can be achieved; therefore, the finally prepared tobacco colorant not only can improve the color and luster, has strong burnt sweet smell and increases the burnt sweet smell, but also can improve the fragrance quality of tobacco products and reduce the woody smell.
3. The method has the advantages of easily available raw materials, low cost, simple process and convenient realization of industrial production and application.
Another embodiment of the present invention also provides a cigarette comprising the tobacco colorant described above. The cigarette is preferably a flue-cured cigarette, a mixed cigarette or a flavor cigarette. When in preparation, the tobacco colorant can be added on the surface of the cut stems according to the amount of 0.5 to 1.2 percent of the cut stems. The cigarette has the same technical effects because the tobacco colorant is contained, and therefore, the description is omitted.
The technical scheme of the invention is further described below with reference to specific examples.
The tobacco extracts in the following examples were prepared from waste tobacco powder produced in a workshop of a certain brand of flue-cured tobacco cigarettes of the company responsible for tobacco industry, inc. in Hebei, by extraction as follows: mixing the waste tobacco powder and water according to the mass ratio of 1:10, and leaching for 3 hours under the reflux condition. Filtering to remove residue after extraction. The physical indexes are as follows: a refractive index of 1.3403 + -0.0080 at 20deg.C; the density of the tobacco extract at 20 ℃ is 1.0170 +/-0.0080 g/mL.
Example 1
Heating 45 parts by weight of white granulated sugar at 180 ℃, slowly adding 15 parts by weight of tobacco extract and 40 parts by weight of propylene glycol after the white granulated sugar is completely melted and the solution turns into brown, continuously heating for 20 minutes under the condition, and cooling after the reaction is finished to obtain the tobacco colorant with the number of A.
About 1.0g (accurate to 0.1 mg) of colorant sample A was weighed into a 25mL triangle bottle with a stopper, 5.0mL of 95% ethanol was added, the mixture was subjected to shaking extraction at a rotation speed of 120r/min for 20min, and after standing, the supernatant was filtered through a 0.45 μm microporous organic phase filter membrane, and the filtrate was subjected to GC/MS analysis. Qualitative analysis was performed using NIST spectral library search, and the obtained chromatographic fingerprint spectrum was shown in fig. 1.
The results show that the sample contains furfural, 2-furoic acid methyl ester, 2, 3-dihydro-3, 5-dihydroxy-6-methyl-4 (H) -pyran-4-ketone, 5-hydroxymethyl furfural and nicotine. No 4-methylimidazole was detected.
Example 2:
heating 52 parts by weight of white granulated sugar at 180 ℃, slowly adding 21 parts by weight of tobacco extract and 27 parts by weight of propylene glycol after the white granulated sugar is completely melted and the solution turns into brown, continuously heating for 20min under the condition, and cooling after the reaction is finished to obtain the tobacco colorant with the number of B. Sample B was subjected to GC/MS analysis in the same manner as in example 1. Qualitative analysis was performed using NIST spectral library search, and no 4-methylimidazole was detected.
Example 3:
heating 58 parts by weight of white granulated sugar at 180 ℃, slowly adding 29 parts by weight of tobacco extract and 13 parts by weight of propylene glycol after the white granulated sugar is completely melted and the solution turns into brown, continuously heating for 20min under the condition, and cooling after the reaction is finished to obtain the tobacco colorant with the number of C. Sample C was subjected to GC/MS analysis in the same manner as in example 1. Qualitative analysis was performed using NIST spectral library search, and no 4-methylimidazole was detected.
Example 4:
the colorant samples A to C prepared in examples 1 to 3 were diluted to 0.1g/mL with 70% ethanol, respectively, and added to a blank cigarette at 1.0% by weight of tobacco (tobacco mass: about 0.6 g). The results show that: compared with blank cigarettes, the cigarettes added with the colorant samples have the advantages of increasing the burnt sweet flavor, inhibiting the pungent irritation and covering the miscellaneous gases, and obviously improving the smoking comfort of cigarettes. Sample C has a pronounced burnt sweet note compared to colorant sample A, B.
Example 5:
the colorant samples A-C prepared in examples 1-3 were added at 1% of the amount of cut stems. The result shows that the colorant not only can obviously improve the color of the cut stems, but also can obviously improve the flavor of the cut stems, cover up the woody gas and improve the taste. Sample C showed a more improved cut stem color compared to colorant sample A, B.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (6)
1. A method of preparing a tobacco colorant comprising:
step a), heating and melting white granulated sugar until the white granulated sugar is completely melted and the color becomes brown to obtain an anhydrous caramelized product;
step b), slowly adding tobacco extract and propylene glycol into the anhydrous caramelized product at the same heating temperature, and then obtaining a tobacco colorant;
the mass ratio of the white granulated sugar to the tobacco extract to the propylene glycol is (40-60): (10-30): (10-45); the tobacco extract is an aqueous extract of waste tobacco powder of flue-cured tobacco;
the heating temperature of the step a and the step b is 160-220 ℃; and b, heating time in the step is 15-30 min.
2. The method of preparing a tobacco colorant according to claim 1, wherein the tobacco extract is prepared according to the following method:
mixing waste tobacco powder of flue-cured tobacco with water according to a mass ratio of 1 (8-12), and leaching under a reflux condition; filtering to remove residue after leaching.
3. The method of preparing a tobacco colorant according to claim 2, wherein the tobacco extract has a refractive index of 1.3403 ±0.0080 at 20 ℃; the density of the tobacco extract at 20 ℃ is 1.0170 +/-0.0080 g/mL.
4. A tobacco colorant prepared according to the method of any one of claims 1 to 3.
5. A cigarette comprising the tobacco colorant of claim 4.
6. The cigarette of claim 5, wherein the cigarette is a flue-cured, hybrid, or flavor cigarette.
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| CN101301111B (en) * | 2008-06-30 | 2010-06-02 | 中国烟草总公司郑州烟草研究院 | Additive agent for perfuming tobacco thin sheet |
| CN102524944B (en) * | 2012-01-19 | 2013-08-21 | 湖北中烟工业有限责任公司 | Color regulator special for improving appearance of recombinant tobacco and preparation method of same |
| CN104861736B (en) * | 2015-04-30 | 2017-01-11 | 陕西科技大学 | Preparation method of caramel pigment without 4-methylimidazole |
| CN106235390B (en) * | 2016-10-14 | 2017-08-29 | 湖北中烟工业有限责任公司 | A kind of reconstituted tobacoo flavouring additive and its preparation method and application |
| CN108013498B (en) * | 2017-11-23 | 2020-11-03 | 广西中烟工业有限责任公司 | Composite additive for improving physical moisture retention performance of reconstituted tobacco |
| CN110846133A (en) * | 2019-12-25 | 2020-02-28 | 郑州轻工业大学 | Cigarette caramel spice under negative pressure condition and preparation method thereof |
| CN111248489A (en) * | 2020-01-16 | 2020-06-09 | 四川中烟工业有限责任公司 | Preparation method of scorched, sweet and scorched-aroma type cigar tobacco leaves |
| CN111254014A (en) * | 2020-03-05 | 2020-06-09 | 四川中烟工业有限责任公司 | Caramel aroma spice, preparation method and application method thereof |
| WO2022003029A1 (en) * | 2020-06-30 | 2022-01-06 | Jt International Sa | Method for preparing a tobacco product and tobacco liquid solution |
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