CN112369641A - Tobacco leaf raw material for heating non-combustible cigarette and treatment method thereof - Google Patents
Tobacco leaf raw material for heating non-combustible cigarette and treatment method thereof Download PDFInfo
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Images
Classifications
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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
- A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
-
- 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
- A24B3/10—Roasting or cooling tobacco
-
- 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
- A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B7/00—Cutting tobacco
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- Manufacture Of Tobacco Products (AREA)
Abstract
The invention provides a processing method of tobacco leaf raw materials and application thereof in heating non-combustible cigarettes, wherein the processing method comprises the steps of sequentially carrying out a moisture regaining step and a redrying step on the tobacco leaf raw materials, and the condition parameters of the moisture regaining step comprise: the moisture regain temperature is 75-85 deg.C, the water content at the outlet is 10-30%, and the outlet temperature is 45-65 deg.C. After research, the processing method provided by the invention can be used for reprocessing tobacco raw materials by relying on shredding equipment, moisture regaining equipment, feeding equipment, burley redrying equipment and the like in the traditional cigarette process, and the processed tobacco raw materials can reduce the miscellaneous gas, stimulation and oral cavity residue of cigarettes and increase the roasting aroma and sweet aroma of the cigarettes when being applied to the cigarettes which are not combusted during heating, so that a better user experience effect is achieved.
Description
Technical Field
The invention belongs to the field of tobacco leaf processing, and particularly relates to a tobacco leaf raw material for heating non-combustible cigarettes, a processing method thereof and application of the tobacco leaf raw material for heating non-combustible cigarettes.
Background
The novel tobacco product brings not only brand-new consumption experience but also brand-new health concept, and for tobacco enterprises, the novel tobacco product not only means a technical change, but also is a wind vane for tobacco development, is 'blue sea' in the tobacco market, and is a potential place for future development of the tobacco industry. The electric heating type (including mixed type) heating non-combustion tobacco leaf product has more advantages in the aspects of mainstream smoke and environmental smoke release, and is the most development potential and the most suitable hotspot in the future of the tobacco leaf industry.
The low-temperature heating non-combustion cigarette (HNB) fundamentally changes the smoking habit of a consumer to tobacco leaves, and the tobacco leaf raw materials do not directly participate in combustion like the traditional cigarette, but the aerosol generated by low-temperature heating (less than 350 ℃) brings out the fragrance of the tobacco leaves to meet the demand of the consumer. Compared with the traditional cigarette, the cigarette heated at low temperature without burning is also insufficient, mainly comprises heavier miscellaneous gas, large stimulation, stronger oral cavity residue and acerbity feeling and the like, so that the question still exists whether the mature tobacco leaf raw material of the traditional cigarette can be directly suitable for heating the cigarette without burning, and therefore, the further processing of the raw material is necessary and practical for the novel tobacco leaf.
For example, companies such as Hunan Zhongyan and Sichuan Zhongyan use low-temperature freezing technology to treat tobacco leaf raw materials, but the treatment processes are greatly different from the conventional processes for processing and producing cigarettes. In order to better utilize the existing cigarette process device, the existing process is expected to be improved and perfected, and the tobacco raw materials are better applied to novel tobacco products.
Disclosure of Invention
The invention aims to overcome the defects that the tobacco leaf raw material of the traditional cigarette has heavier miscellaneous gas, large stimulation, strong oral cavity residue and harsh feeling and the like when being directly used for heating the non-combustible cigarette, and the prior improved technology has larger process difference with the traditional cigarette processing production so as to cause that the prior cigarette process device can not be well utilized, and provides the tobacco leaf raw material more suitable for heating the non-combustible cigarette and the processing method thereof. The present inventors have completed the present invention based on the surprising finding that the tobacco raw material and the processing method thereof according to the present invention can well overcome the above-mentioned drawbacks.
In one aspect, the present invention provides a method of treating tobacco leaf material, comprising: the method comprises the following steps of sequentially carrying out a moisture regaining step and a redrying step on tobacco raw materials, wherein the condition parameters of the moisture regaining step comprise: the moisture regain temperature is 75-85 deg.C, the water content at the outlet is 10-30%, and the outlet temperature is 45-65 deg.C.
In one embodiment, the tobacco leaf feedstock is a flue-cured tobacco leaf feedstock, a burley tobacco leaf feedstock, an aromatic tobacco leaf feedstock, or a combination thereof.
In one embodiment, the condition parameters of the redrying step include: the redrying temperature is 100-180 ℃, and the redrying time is 5-30 min.
In one embodiment, the processing method further comprises: adding one or more natural amino acids selected from the group consisting of proline, glycine, alanine and threonine as an additive to the remoistened tobacco leaf feedstock after the remoistening step and before the redrying step, and preferably, the natural amino acids are added in an amount of less than 3 wt% based on the weight of the remoistened tobacco leaf feedstock.
In one embodiment, the processing method further comprises: adding one or more saccharides selected from invert sugar, fructose and glucose as an additive to the remoistened tobacco leaf feedstock after the remoistening step and before the redrying step, and preferably, the natural amino acid is added in an amount of less than 3 wt% based on the weight of the remoistened tobacco leaf feedstock.
In one embodiment, the processing method further comprises: after the addition of the additive, the tobacco leaf material is equilibrated at a moisture content of 40% or less, and preferably, the equilibration time is 6-24 hours.
In one embodiment, the processing method further comprises: after the redrying step, the redried tobacco leaf raw material is cut into threads and crushed to a particle size of 200-300 meshes.
In another aspect, the present invention also provides a treated tobacco leaf material, which is produced by the above-described treatment process.
In one embodiment, the treated tobacco leaf feedstock has a 5-20% reduction in total sugar content and a 10-30% reduction in reducing sugar content as compared to the pre-treated tobacco leaf feedstock.
In yet another aspect, the present invention also provides the use of the above-described treated tobacco leaf feedstock for heating non-combustible cigarettes.
After research, the processing method provided by the invention can be used for reprocessing tobacco raw materials by relying on shredding equipment, moisture regaining equipment, feeding equipment, burley redrying equipment and the like in the traditional cigarette process, and the processed tobacco raw materials can reduce the miscellaneous gas, stimulation and oral cavity residue of cigarettes and increase the roasting aroma and sweet aroma of the cigarettes when being applied to the cigarettes which are not combusted during heating, so that a better user experience effect is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flow chart illustrating a tobacco leaf material processing method according to an embodiment of the present invention.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
Before describing the present invention in detail, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention which will be limited only by the appended claims. For a more complete understanding of the invention described herein, the following terms are used, and their definitions are set forth below. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In one aspect, the present invention provides a method of treating tobacco leaf material, comprising: the method comprises the following steps of sequentially carrying out a moisture regaining step and a redrying step on tobacco raw materials, wherein the condition parameters of the moisture regaining step comprise: the moisture regain temperature is 75-85 deg.C, the water content at the outlet is 10-30%, and the outlet temperature is 45-65 deg.C.
The tobacco material according to the present invention may be a tobacco material that is currently mature for conventional cigarettes, which, as is well known in the art, mainly comprises one or more of flue-cured tobacco, sun-cured tobacco (also known as burley tobacco) and aromatic tobacco. Thus, in a preferred embodiment, the tobacco leaf feedstock can be a flue-cured tobacco leaf feedstock, a burley tobacco leaf feedstock, an aromatic tobacco leaf feedstock, or a combination thereof. However, the tobacco raw material of the traditional cigarette has the defects of heavy miscellaneous gas, large stimulation, strong oral cavity residue, harsh feeling and the like when being applied to the cigarette which is not combusted by heating, so the inventor proposes the method for treating the tobacco raw material of the traditional cigarette to prepare the novel tobacco raw material which is more suitable for the cigarette which is not combusted by heating.
According to the invention, before the tobacco leaf raw material is subjected to moisture regain, the raw material can be subjected to a loosening process, so that the tobacco leaf raw material can achieve a better moisture regain effect.
As used herein, the term "conditioning" refers to the step of rewetting tobacco leaf material that has been sun-dried or oven-dried. For the moisture regain step of the present invention, the moisture regain temperature and moisture content may be regulated based on practical requirement. In a preferred embodiment, the conditioning parameters of the conditioning step may include: the moisture regain temperature may be, for example, 78 ℃, 80 ℃ or 82 ℃ or the like, the moisture content at the outlet may be, for example, 15%, 20% or 25%, and the outlet temperature may be, for example, 50 ℃, 55 ℃ or 60 ℃ or the like.
As used herein, the term "redrying" refers to the process of subjecting a previously prepared tobacco leaf material to a further curing process. For the redrying step of the invention, the redrying step can be carried out in a burley redrying device or other baking devices, and the temperature and time of the redrying can be adjusted according to actual needs. In a preferred embodiment, the condition parameters of the redrying step may include: the redrying temperature can be 100-180 deg.C (e.g., 120 deg.C, 140 deg.C or 160 deg.C), and the redrying time can be 5-30min (e.g., 10min, 15min, 20min or 25 min).
According to the present invention, after the conditioning step and before the redrying step, other additives (also referred to herein as an addition step) may be added to the tobacco leaf material to provide the new tobacco leaf material with other desirable smoking mouthfeel. For example, in a preferred embodiment, the processing method may further include: after the conditioning step and before the redrying step, one or more natural amino acids including proline, glycine, alanine and threonine are added as additives to the conditioned tobacco leaf material, and preferably, the natural amino acids may be added in an amount of less than 3 wt% (e.g., 0.5 wt%, 1 wt%, or 2 wt%) based on the weight of the conditioned tobacco leaf material. In another preferred embodiment, the processing method may further include: after the conditioning step and before the redrying step, one or more saccharides including invert sugar, fructose and glucose are added as additives to the conditioned tobacco leaf raw material, and more preferably, the natural amino acid may be added in an amount of less than 3 wt% (e.g., 0.5 wt%, 1 wt% or 2 wt%) based on the weight of the conditioned tobacco leaf raw material.
In addition, other more kinds of additives, such as honey, vanillin, mint, traditional Chinese medicine and other components for improving the palatability of the cigarette, can be added into the tobacco leaf raw materials according to actual needs; vitamins, minerals, fruits, vegetables and the like which can bring health benefits to people; and energy and vitality related components such as caffeine and taurine.
According to the present invention, after the addition of the above-mentioned additives, the tobacco raw material to which the additives are added may be equilibrated for a period of time in order that the additives may be uniformly distributed in the tobacco raw material. Therefore, in a preferred embodiment, the processing method may further include: after the addition of the additive, the tobacco leaf material is equilibrated (also referred to as leaf storage equilibration) at a moisture content of 40% or less (e.g. 10%, 20%, 30%, etc.), and more preferably, the equilibration time may be 6-24h (e.g. 10h, 15h, 20h, etc.).
According to the present invention, after the redrying step is completed, the prepared novel tobacco leaf raw material can also be made into a desired shape, such as a strip, a filament, a powder, or the like. In a preferred embodiment, the processing method may further include: after the redrying step, the redried tobacco leaf raw material is cut into threads and crushed to a particle size of 200-300 meshes.
Thus, a flow diagram of a tobacco leaf material processing method according to one embodiment of the present invention may be as shown in fig. 1, which specifically includes the steps of slicing, loosening and conditioning, feeding, redrying, shredding, pulverizing, and the like.
In another aspect, the present invention also provides a novel tobacco leaf raw material for use in heating a non-combustible cigarette, which is produced by the treatment method as described above. The novel tobacco leaf raw material prepared by the method can reduce the unpleasant smell, irritation and oral cavity residue of cigarettes when being applied to the cigarettes which are not burnt.
According to the invention, the novel tobacco leaf raw material treated by the method is compared with the untreated tobacco leaf raw material in conventional composition analysis, and the total sugar (also called carbohydrate, including monosaccharide, disaccharide, oligosaccharide and polysaccharide) content and the reducing sugar (including all monosaccharide (except dihydroxyacetone) and most disaccharide (except cane sugar)) content in the novel tobacco leaf raw material are reduced. In a preferred embodiment, the total sugar content of the prepared tobacco leaf material can be reduced by 5-20% (e.g., 10% or 15%, etc.) and the reducing sugar content can be reduced by 10-30% (15%, 20%, or 25%, etc.) compared to the tobacco leaf material of the conventional cigarette.
In still another aspect, the invention also provides the application of the novel tobacco leaf raw material prepared by the method in heating non-combustible cigarettes.
After research, the processing method provided by the invention can be used for reprocessing tobacco raw materials by relying on shredding equipment, moisture regaining equipment, feeding equipment, burley redrying equipment and the like in the traditional cigarette process, and the processed tobacco raw materials can reduce the miscellaneous gas, stimulation and oral cavity residue of cigarettes and increase the roasting aroma and sweet aroma of the cigarettes when being applied to the cigarettes which are not combusted during heating, so that a better user experience effect is achieved.
Hereinafter, the effects of the novel tobacco leaf material of the present invention will be described in detail by way of examples. In the following examples, the tobacco leaf material is from tobacco leaf material currently used in conventional cigarettes.
Examples
Example 1
Weighing flue-cured tobacco leaf raw materials, cutting the flue-cured tobacco leaf raw materials into five pieces by four knives, then carrying out a moisture regain step, wherein the moisture regain temperature is 80 ℃, the moisture content at an outlet is 10%, the outlet temperature is 60 ℃, other additives are not added in the feeding step, then carrying out redrying in burley redrying equipment, wherein the redrying temperature is 120 ℃, the redrying time is 10min, the redried tobacco leaf raw materials do not need to be remoistened, transferring the redried tobacco leaf raw materials to shredding equipment, then shredding and crushing the tobacco leaf raw materials into 250 meshes, and finally entering a slice preparation link.
The novel tobacco leaf raw material treated by the method and the untreated tobacco leaf raw material are subjected to conventional component comparison analysis, so that the total sugar content in the novel tobacco leaf raw material is reduced by about 15%, and the reducing sugar content is reduced by about 25%. The sensory evaluation results of the novel tobacco leaf raw material and the untreated tobacco leaf raw material after being processed into the cigarette cartridge which is not combusted by heating are shown in the following table 1.
TABLE 1
Example 2
Weighing burley tobacco leaf raw materials, cutting the burley tobacco leaf raw materials into five pieces, then carrying out a moisture regain step, wherein the moisture regain temperature is 80 ℃, the moisture content at an outlet is 25%, the outlet temperature is 60 ℃, other additives are not added in the feeding step, then carrying out redrying in burley tobacco redrying equipment, wherein the redrying temperature is 140 ℃, the redrying time is 20min, the redried tobacco leaf raw materials do not need to be remoistened, transferring the redried tobacco leaf raw materials to shredding equipment, then shredding and crushing the tobacco leaf raw materials into 200 meshes, and finally entering a slice preparation link.
The novel tobacco leaf raw material treated by the method and the untreated tobacco leaf raw material are subjected to conventional component comparison analysis, so that the total sugar content in the novel tobacco leaf raw material is reduced by about 18%, and the reducing sugar content is reduced by about 30%. The sensory evaluation results of the novel tobacco leaf raw material and the untreated tobacco leaf raw material after being processed into the cigarette cartridge which is not combusted by heating are shown in the following table 2.
TABLE 2
Example 3
Weighing aromatic tobacco leaf raw materials, cutting the aromatic tobacco leaf raw materials into five pieces by four knives, then carrying out a moisture regain step, wherein the moisture regain temperature is 75 ℃, the moisture content at an outlet is 20%, the outlet temperature is 55 ℃, 2% by weight of invert sugar and 3% by weight of fructose are added in the feeding step, the leaf storage balance is carried out for 12 hours under the condition that the moisture content is controlled to be 25%, then carrying out redrying in burley tobacco redrying equipment, wherein the redrying temperature is 140 ℃, the redrying time is 30min, the redried tobacco leaf raw materials do not need to be remoistened again, transferring the tobacco leaf raw materials to shredding equipment, then shredding and 300 meshes, and finally, carrying out slice preparation link.
The novel tobacco leaf raw material treated by the method and the untreated tobacco leaf raw material are subjected to conventional component comparison analysis, so that the total sugar content in the novel tobacco leaf raw material is reduced by about 10%, and the reducing sugar content is reduced by about 15%. The sensory evaluation results of the novel tobacco leaf raw material and the untreated tobacco leaf raw material after being processed into the cigarette cartridge which is not combusted by heating are shown in the following table 3.
TABLE 3
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A method of treating tobacco leaf feedstock comprising: the method comprises the following steps of sequentially carrying out a moisture regaining step and a redrying step on tobacco raw materials, wherein the condition parameters of the moisture regaining step comprise: the moisture regain temperature is 75-85 deg.C, the moisture content of tobacco leaf at outlet is 10-30%, and the outlet temperature is 45-65 deg.C.
2. The process of claim 1, wherein the tobacco leaf feedstock is a flue-cured tobacco leaf feedstock, a burley tobacco leaf feedstock, an aromatic tobacco leaf feedstock, or a combination thereof.
3. The process of claim 1, wherein the condition parameters of the redrying step include: the redrying temperature is 100-180 ℃, and the redrying time is 5-30 min.
4. The processing method of claim 1, further comprising: adding one or more natural amino acids selected from the group consisting of proline, glycine, alanine and threonine as an additive to the remoistened tobacco leaf feedstock after the remoistening step and before the redrying step, and preferably, the natural amino acids are added in an amount of less than 3 wt% based on the weight of the remoistened tobacco leaf feedstock.
5. The processing method of claim 1, further comprising: adding one or more saccharides selected from invert sugar, fructose and glucose as an additive to the remoistened tobacco leaf feedstock after the remoistening step and before the redrying step, and preferably, the natural amino acid is added in an amount of less than 3 wt% based on the weight of the remoistened tobacco leaf feedstock.
6. The processing method according to claim 4 or 5, further comprising: after the addition of the additive, the tobacco leaf material is equilibrated at a moisture content of 40% or less, and preferably, the equilibration time is 6-24 hours.
7. The processing method of claim 1, further comprising: after the redrying step, the redried tobacco leaf raw material is cut into threads and crushed to a particle size of 200-300 meshes.
8. A treated tobacco leaf feedstock made by the treatment process according to any one of claims 1 to 7.
9. The tobacco leaf feedstock of claim 8, wherein the treated tobacco leaf feedstock has a total sugar content that is reduced by 5-20% and a reducing sugar content that is reduced by 10-30% as compared to the tobacco leaf feedstock prior to treatment.
10. Use of the treated tobacco leaf feedstock according to claim 8 or 9 for heating non-combustible cigarettes.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116019247A (en) * | 2021-10-27 | 2023-04-28 | 上海烟草集团有限责任公司 | Treatment method for improving quality of upper tobacco leaves and processing method |
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