CN113229526A - Preparation method of non-combustion tobacco product heated by rolling method - Google Patents
Preparation method of non-combustion tobacco product heated by rolling method Download PDFInfo
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- CN113229526A CN113229526A CN202110634994.2A CN202110634994A CN113229526A CN 113229526 A CN113229526 A CN 113229526A CN 202110634994 A CN202110634994 A CN 202110634994A CN 113229526 A CN113229526 A CN 113229526A
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- tobacco
- modified starch
- cellulase
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- tobacco product
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- 235000019505 tobacco product Nutrition 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 15
- 238000005096 rolling process Methods 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 241000208125 Nicotiana Species 0.000 claims abstract description 82
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 82
- 239000000835 fiber Substances 0.000 claims abstract description 58
- 229920000881 Modified starch Polymers 0.000 claims abstract description 54
- 239000004368 Modified starch Substances 0.000 claims abstract description 54
- 235000019426 modified starch Nutrition 0.000 claims abstract description 54
- 239000000843 powder Substances 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 26
- 239000000779 smoke Substances 0.000 claims abstract description 25
- 239000012153 distilled water Substances 0.000 claims abstract description 19
- 229920001046 Nanocellulose Polymers 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 239000011268 mixed slurry Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims abstract description 10
- 235000012149 noodles Nutrition 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims abstract description 5
- 230000001070 adhesive effect Effects 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000009740 moulding (composite fabrication) Methods 0.000 claims abstract description 3
- 108010059892 Cellulase Proteins 0.000 claims description 48
- 229940106157 cellulase Drugs 0.000 claims description 48
- 108090000790 Enzymes Proteins 0.000 claims description 30
- 102000004190 Enzymes Human genes 0.000 claims description 30
- 229940088598 enzyme Drugs 0.000 claims description 30
- 229940059442 hemicellulase Drugs 0.000 claims description 24
- 108010002430 hemicellulase Proteins 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 23
- 229920002748 Basalt fiber Polymers 0.000 claims description 10
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 8
- 235000010413 sodium alginate Nutrition 0.000 claims description 8
- 239000000661 sodium alginate Substances 0.000 claims description 8
- 229940005550 sodium alginate Drugs 0.000 claims description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- 229920001661 Chitosan Polymers 0.000 claims description 2
- 229920002907 Guar gum Polymers 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 229920002301 cellulose acetate Polymers 0.000 claims description 2
- 229920006184 cellulose methylcellulose Polymers 0.000 claims description 2
- 235000010417 guar gum Nutrition 0.000 claims description 2
- 239000000665 guar gum Substances 0.000 claims description 2
- 229960002154 guar gum Drugs 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 229920002678 cellulose Polymers 0.000 description 37
- 239000001913 cellulose Substances 0.000 description 37
- 235000019504 cigarettes Nutrition 0.000 description 24
- 230000000391 smoking effect Effects 0.000 description 13
- 230000002829 reductive effect Effects 0.000 description 12
- 239000011162 core material Substances 0.000 description 10
- 239000002002 slurry Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 239000000686 essence Substances 0.000 description 8
- 229920002472 Starch Polymers 0.000 description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 6
- 239000008107 starch Substances 0.000 description 6
- 235000019698 starch Nutrition 0.000 description 6
- 239000003205 fragrance Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 206010013911 Dysgeusia Diseases 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 3
- 239000000796 flavoring agent Substances 0.000 description 3
- 235000019634 flavors Nutrition 0.000 description 3
- 230000007794 irritation Effects 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000010333 potassium nitrate Nutrition 0.000 description 3
- 239000004323 potassium nitrate Substances 0.000 description 3
- 230000001953 sensory effect Effects 0.000 description 3
- 235000010344 sodium nitrate Nutrition 0.000 description 3
- 239000004317 sodium nitrate Substances 0.000 description 3
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
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- 235000019615 sensations Nutrition 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 1
- 108010084185 Cellulases Proteins 0.000 description 1
- 102000005575 Cellulases Human genes 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920001340 Microbial cellulose Polymers 0.000 description 1
- NEAPKZHDYMQZCB-UHFFFAOYSA-N N-[2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]ethyl]-2-oxo-3H-1,3-benzoxazole-6-carboxamide Chemical compound C1CN(CCN1CCNC(=O)C2=CC3=C(C=C2)NC(=O)O3)C4=CN=C(N=C4)NC5CC6=CC=CC=C6C5 NEAPKZHDYMQZCB-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003571 electronic cigarette Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
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- 229920002521 macromolecule Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 235000019659 mouth feeling Nutrition 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
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- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/01—Making cigarettes for simulated smoking devices
-
- 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
-
- 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
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention discloses a preparation method of a non-combustion tobacco product heated by a rolling method, which comprises the following steps: s1, crushing and grinding the tobacco raw materials to obtain fine tobacco powder; s2, mixing the fine tobacco powder obtained in the step with a smoke agent, an adhesive, tobacco stem fibers, external fibers and essence, and then adding water to stir uniformly to form a dry-mass mixture; s3, mixing and stirring the modified starch, the nano cellulose dry powder and distilled water uniformly to prepare nano cellulose/modified starch mixed slurry; s4, uniformly coating the mixed pulp of the nano cellulose and the modified starch prepared in the step on the outer surface of the dry lumpy mixture, and then rolling and forming, drying and shredding the mixture for multiple times by a household noodle press to prepare the tobacco product which can not be burnt by heating. The preparation method provided by the invention has the advantages of simple production process, low water consumption and energy consumption, high compactness of the prepared tobacco sheet, good thermal conductivity, high fiber content, high tensile strength of the sheet, difficult fracture and good processing resistance, and is suitable for large-scale production.
Description
Technical Field
The invention relates to the field of heating non-combustible tobacco, in particular to a preparation method of a non-combustible tobacco product heated by a rolling method.
Background
In recent years, with the slipping of traditional cigarettes in developed countries and the increasing of smoking prohibition in public places in many countries, new tobacco products such as electronic cigarettes, smokeless tobacco products and heating non-burning tobacco products are rapidly emerging. The smoking mode of heating non-combustion is adopted, and the heating temperature is lower than the combustion temperature, so that the flavor substances and nicotine in the tobacco are volatilized, and the smoke similar to the smoke of a traditional cigarette is generated and provided for a smoker. Because the high-temperature combustion cracking process is not generated, the release amount of tar and harmful substances in the tobacco is reduced. Meanwhile, the smoking core is in a non-heating state during the smoking intermission period, so that side-stream smoke is not generated basically, and the harm of second-hand smoke is greatly reduced.
The heating non-combustion type tobacco sheet is a form of reconstituted tobacco, the main component of the tobacco sheet is tobacco substances, smoke is released when the tobacco sheet is heated by adding smoke substances, flavor is adjusted by adding spices, various components are bonded by adding sticky substances, and the strength of the sheet is enhanced by adding fibers. Common production methods include various methods such as a roll-pressing method. At present, when a rolling method is used for preparing a tobacco product which is not burnt by heating, the prepared tobacco sheet has the problems of low fiber content, high breakage, low filling value when tobacco is rolled into cigarettes, higher suction resistance when the cigarettes are sucked, unsmooth suction mouth feeling, insufficient sheet tensile strength, easy breakage and incapability of continuous production when a paper rod forming process is adopted, so that the sensory quality and the utilization rate of cigarettes are influenced.
Chinese patent CN201810526746.4 discloses a method for preparing a heating non-combustible core material, which comprises heating and mixing a certain amount of edible gum and deionized water to prepare a solution A; then heating and mixing with a certain amount of heat-conducting salt powder to prepare coating liquid B; and finally, coating the coating liquid B on the surface of the cigarette core material with the smoke agent, and drying and curing at low temperature in vacuum to obtain the cigarette core material which can not burn by heating. The cigarette core material prepared by the method has excellent heat transfer performance, cigarettes rolled by the cigarette core material are heated without burning, the smoke quantity is large, the fragrance components escape uniformly and stably, the cigarette fragrance is rich and soft, the tensile strength of the cigarette core material is effectively improved, the cigarette core material is easier to cut into strips and form, and the cigarette core material has strong practicability and wide applicability. The method improves the heat-conducting property of the tobacco core material by using the potassium nitrate or sodium nitrate heat-conducting salt and utilizing the melting heat-conducting property of the heat-conducting salt, however, the potassium nitrate or sodium nitrate heat-conducting salt belongs to a strong oxidizing substance, is easy to generate an oxidation reaction with a reductive tobacco raw material under high-temperature heating, further releases heat in the oxidation reaction, can cause combustion of the tobacco raw material or decomposition of the potassium nitrate or sodium nitrate heat-conducting salt, and is not safe enough to use.
Disclosure of Invention
In order to solve the problems, the invention provides a preparation method of a non-combustion tobacco product heated by a rolling method, which has the advantages of simple production process, low water consumption and energy consumption, high tightness of the prepared tobacco sheet, good heat conductivity, high fiber content, high tensile strength of the sheet, difficult fracture and good processing resistance, and is suitable for large-scale production.
The technical scheme provided by the invention is as follows: a preparation method of a non-combustion tobacco product heated by a rolling method is characterized by comprising the following steps:
s1, crushing and grinding the tobacco raw materials to obtain fine tobacco powder;
s2, mixing the fine tobacco powder obtained in the step with a smoke agent, an adhesive, tobacco stem fibers, external fibers and essence, and then adding water to stir uniformly to form a dry-mass mixture;
s3, mixing and stirring the modified starch, the nano cellulose dry powder and distilled water uniformly to prepare nano cellulose/modified starch mixed slurry;
s4, uniformly coating the mixed pulp of the nano cellulose and the modified starch prepared in the step on the outer surface of the dry lumpy mixture, and then rolling and forming, drying and shredding the mixture for multiple times by a household noodle press to prepare the tobacco product which can not be burnt by heating.
Further, the tobacco stalk fiber is pretreated for 4-5 hours at 50-52 ℃ by using the combined enzyme before being mixed in the step S2.
Further, the mass ratio of the combined enzyme to the tobacco stem fibers is 1: 200.
Further, the combined enzyme is a mixture of cellulase UO, cellulase RO, composite cellulase, hemicellulase and composite hemicellulase.
Further, the mass ratio of the cellulase UO to the cellulase RO to the composite cellulase to the hemicellulase to the composite hemicellulase is 2: 2: 4: 1: 2.
further, in the step S2, the mass ratio of the fine tobacco powder, the smoke agent, the adhesive, the tobacco stalk fiber, the outer fiber, the essence and the water is 100: (1-5): (3-8): (1-6): (0.1-0.6): (5-10): (10-30).
Further, in step S2, the binder is at least one of sodium alginate, CMC, chitosan, guar gum, and cellulose acetate.
Further, in the step S2, the outer fibers are basalt fibers.
Further, in the step S3, the mass ratio of the modified starch to the nano-cellulose dry powder to the distilled water is (3-6): (3-6): (44-47).
Further, the mass ratio of the mixed slurry of the nano-cellulose and the modified starch to the dry mass mixture in the step S4 is (1-8): 100.
the invention has the beneficial effects that:
1. according to the preparation method of the non-combustion tobacco product heated by the rolling method, the modified starch, the nano cellulose dry powder and the distilled water are mixed and stirred uniformly to prepare the nano cellulose/modified starch mixed slurry, and then the nano cellulose/modified starch mixed slurry is uniformly coated on the outer surface of the dry massive mixture, so that the mixed slurry can be adsorbed and bonded on tobacco stem fibers and outer fibers, the breaking strength and breaking elongation of the fibers are improved, and the tensile strength and breaking resistance of the tobacco product are improved.
2. According to the preparation method of the tobacco product heated and not combusted by the rolling method, the tobacco stalk fibers are pretreated by using the combined enzyme, so that the thermal stability of the prepared tobacco product can be obviously improved, the tobacco stalk fibers become loose and porous due to the enzyme pretreatment, the diffusion resistance of heat and the like is reduced, the control of heating and not combusting is facilitated, and the internal smoldering of tobacco caused by heat accumulation can be prevented.
3. According to the preparation method of the non-combustible tobacco product heated by the rolling method, provided by the invention, the basalt fiber is added, so that the high-temperature, low-temperature and fatigue resistance of the mixture can be enhanced, and the effects of reinforcing and resisting cracking can be achieved. Under the action of low temperature and load, the added basalt fibers can be combined with tobacco stem fibers to form a net structure, and the effect of inhibiting the continuous development of cracks can be achieved.
Drawings
FIG. 1 is a flow chart of a method of making a rolled heated non-combustible smoking article according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the following will describe the specific embodiments of the present invention with reference to the accompanying drawings.
It is obvious that the drawings in the following description are only some examples of the invention, and it is obvious to a person skilled in the art that other drawings and other embodiments can be obtained from these drawings without inventive effort, and the invention is not limited to this example.
The specific embodiment of the invention is as follows:
example 1
S1, crushing and grinding the tobacco raw materials to obtain fine tobacco powder;
s2, mixing the fine tobacco powder obtained in the above steps with a smoke agent, sodium alginate, tobacco stalk fiber, basalt fiber, essence and water according to a mass ratio of 100: 2: 6: 3: 0.3: 6: 20, mixing, and then uniformly stirring to form a dry mass mixture;
wherein the tobacco stalk fiber is pretreated for 4 hours at 50 ℃ by using combined enzyme before being mixed;
the mass ratio of the combined enzyme to the tobacco stalk fiber is 1: 200;
the combined enzyme is a mixture of cellulase UO, cellulase RO, composite cellulase, hemicellulase and composite hemicellulase;
the mass ratio of the cellulase UO to the cellulase RO to the composite cellulase to the hemicellulase is 2: 2: 4: 1: 2;
s3, mixing and stirring the modified starch, the nano-cellulose dry powder and distilled water uniformly to prepare nano-cellulose/modified starch mixed slurry, wherein the mass ratio of the modified starch to the nano-cellulose dry powder to the distilled water is 5: 5: 45, a first step of;
s4, uniformly coating the mixed pulp of the nano-cellulose and the modified starch prepared in the previous step on the outer surface of the dry mass mixture, and then performing multiple roll forming, drying and shredding through a household noodle press to obtain the tobacco product which is not combusted by heating, wherein the mass ratio of the mixed pulp of the nano-cellulose and the modified starch to the dry mass mixture is 5: 100.
in the embodiment of the invention, the cellulase UO is a common cellulase, the cellulase RO is an endocellulase, the composite cellulase is a cellulase containing different auxiliary activities, and the composite hemicellulase is various enzymes containing plant cell hydrolysis.
Example 2
S1, crushing and grinding the tobacco raw materials to obtain fine tobacco powder;
s2, mixing the fine tobacco powder obtained in the above steps with a smoke agent, sodium alginate, tobacco stalk fiber, basalt fiber, essence and water according to a mass ratio of 100: 2: 6: 3: 0.3: 6: 20, mixing, and then uniformly stirring to form a dry mass mixture;
s3, mixing and stirring the modified starch, the nano-cellulose dry powder and distilled water uniformly to prepare nano-cellulose/modified starch mixed slurry, wherein the mass ratio of the modified starch to the nano-cellulose dry powder to the distilled water is 5: 5: 45, a first step of;
s4, uniformly coating the mixed pulp of the nano-cellulose and the modified starch prepared in the previous step on the outer surface of the dry mass mixture, and then performing multiple roll forming, drying and shredding through a household noodle press to obtain the tobacco product which is not combusted by heating, wherein the mass ratio of the mixed pulp of the nano-cellulose and the modified starch to the dry mass mixture is 5: 100.
the tobacco products which are prepared in the examples 1 and 2 and are not burnt are made into cigarettes which are not burnt, then the cigarettes which are not burnt are subjected to smoking evaluation, indexes of fragrance, smoke amount, stimulation and aftertaste of the cigarettes are scored, the scoring range of each index is 1-10, and the higher the scoring is, the better the sensory smoking quality is. The results are shown in Table 1.
| Examples | Fragrance | Amount of smoke | Sensation of irritation | Aftertaste | Total score |
| Example 1 | 7 | 6 | 7 | 6 | 26 |
| Example 2 | 5 | 5 | 6 | 6 | 22 |
TABLE 1 smoking quality scores for heat-not-burn cigarettes of examples 1 and 2
As can be seen from the results in Table 1, the cigarette prepared in example 1, which is made by heating a non-combustible tobacco product, has better smoking quality than that of example 2, because the pretreatment combined with enzyme leads to the thickness of the tobacco stalk fiber to be improved, and the cells are not thickened uniformly in the whole when the secondary wall is thickened, wherein a part which is not thickened is always left. This non-thickened portion, because the cell wall is relatively thin, appears as a few small circular holes when viewed under a microscope, and these thin-walled regions are called pits. The surface of the tobacco stalk fiber structure is provided with a plurality of pores, and a fiber framework is exposed. The pretreatment of the combined enzyme enables the tobacco stem fiber thread holes to be opened, so that the fiber surface in the tobacco stem is exposed, the thread holes are expanded and opened, the fiber porosity is increased, the transfer and the entry of water molecules and biological enzyme molecules are facilitated, the accessibility of the cellulase is improved, the fiber cell wall is further damaged, the collapse of the whole cell wall structure is caused, the dissolution of macromolecular substances in cells is facilitated, more fiber frameworks are exposed, and the fiber surface becomes rough.
Since the fiber thickness affects the softness and binding force of the fibers, the fiber thickness is increased, thereby affecting the physical properties of tobacco. The thickness of the tobacco is large, the bulk of the tobacco is increased, the liquid absorption of the tobacco product is facilitated, and the flavor substances are coated with great benefits. However, the strength of the tobacco product tends to be reduced, and the average length of the fiber after the combined enzyme pretreatment is longer, so the influence of the thickness on the strength is not obvious. Therefore, in the later processing and coating process, substances such as lignin, foreign protein and the like can be effectively removed through the effects of adsorption, precipitation and the like, and the quality of the tobacco sheet is greatly improved. Meanwhile, the combined enzyme pretreatment causes part of cellulose and hemicellulose to be converted into small molecular substances, and part of lignin is lost, and the substances are poorer in thermal stability than the cellulose, the hemicellulose and the lignin. Therefore, the thermal stability of the prepared tobacco product is obviously improved, and therefore, the pretreatment of the combined enzyme can enable the tobacco stem fibers to become loose and porous, the diffusion resistance of heat is reduced, the control of heating and non-combustion is facilitated, and the internal smoldering of tobacco caused by heat accumulation can be prevented.
Example 3
S1, crushing and grinding the tobacco raw materials to obtain fine tobacco powder;
s2, mixing the fine tobacco powder obtained in the above steps with a smoke agent, sodium alginate, tobacco stalk fiber, basalt fiber, essence and water according to a mass ratio of 100: 1: 3: 1: 0.1: 5: 10, mixing, and then uniformly stirring to form a dry-mass mixture;
wherein the tobacco stalk fiber is pretreated for 4 hours at 50 ℃ by using combined enzyme before being mixed;
the mass ratio of the combined enzyme to the tobacco stalk fiber is 1: 200;
the combined enzyme is a mixture of cellulase UO, cellulase RO, composite cellulase, hemicellulase and composite hemicellulase;
the mass ratio of the cellulase UO to the cellulase RO to the composite cellulase to the hemicellulase is 2: 2: 4: 1: 2;
s3, mixing and stirring the modified starch, the nano-cellulose dry powder and distilled water uniformly to prepare nano-cellulose/modified starch mixed slurry, wherein the mass ratio of the modified starch to the nano-cellulose dry powder to the distilled water is 3: 3: 44;
s4, uniformly coating the mixed pulp of the nano-cellulose and the modified starch prepared in the previous step on the outer surface of the dry mass mixture, and then performing multiple roll forming, drying and shredding through a household noodle press to obtain the tobacco product which is not combusted by heating, wherein the mass ratio of the mixed pulp of the nano-cellulose and the modified starch to the dry mass mixture is 1: 100.
example 4
S1, crushing and grinding the tobacco raw materials to obtain fine tobacco powder;
s2, mixing the fine tobacco powder obtained in the above steps with a smoke agent, sodium alginate, tobacco stalk fiber, basalt fiber, essence and water according to a mass ratio of 100: 3: 6: 4: 0.4: 7: 20, mixing, and then uniformly stirring to form a dry mass mixture;
wherein the tobacco stalk fiber is pretreated for 4 hours at 50 ℃ by using combined enzyme before being mixed;
the mass ratio of the combined enzyme to the tobacco stalk fiber is 1: 200;
the combined enzyme is a mixture of cellulase UO, cellulase RO, composite cellulase, hemicellulase and composite hemicellulase;
the mass ratio of the cellulase UO to the cellulase RO to the composite cellulase to the hemicellulase is 2: 2: 4: 1: 2;
s3, mixing and stirring the modified starch, the nano-cellulose dry powder and distilled water uniformly to prepare nano-cellulose/modified starch mixed slurry, wherein the mass ratio of the modified starch to the nano-cellulose dry powder to the distilled water is 5: 5: 44;
s4, uniformly coating the mixed pulp of the nano-cellulose and the modified starch prepared in the previous step on the outer surface of the dry mass mixture, and then performing multiple roll forming, drying and shredding through a household noodle press to obtain the tobacco product which is not combusted by heating, wherein the mass ratio of the mixed pulp of the nano-cellulose and the modified starch to the dry mass mixture is 5: 100.
example 5
S1, crushing and grinding the tobacco raw materials to obtain fine tobacco powder;
s2, mixing the fine tobacco powder obtained in the above steps with a smoke agent, sodium alginate, tobacco stalk fiber, basalt fiber, essence and water according to a mass ratio of 100: 3: 6: 4: 0.4: 7: 20, mixing, and then uniformly stirring to form a dry mass mixture;
wherein the tobacco stalk fiber is pretreated for 4 hours at 50 ℃ by using combined enzyme before being mixed;
the mass ratio of the combined enzyme to the tobacco stalk fiber is 1: 200;
the combined enzyme is a mixture of cellulase UO, cellulase RO, composite cellulase, hemicellulase and composite hemicellulase;
the mass ratio of the cellulase UO to the cellulase RO to the composite cellulase to the hemicellulase is 2: 2: 4: 1: 2;
s3, mixing and stirring the modified starch, the nano-cellulose dry powder and distilled water uniformly to prepare nano-cellulose/modified starch mixed slurry, wherein the mass ratio of the modified starch to the nano-cellulose dry powder to the distilled water is 3: 6: 44;
s4, uniformly coating the mixed pulp of the nano-cellulose and the modified starch prepared in the previous step on the outer surface of the dry mass mixture, and then performing multiple roll forming, drying and shredding through a household noodle press to obtain the tobacco product which is not combusted by heating, wherein the mass ratio of the mixed pulp of the nano-cellulose and the modified starch to the dry mass mixture is 5: 100.
example 6
S1, crushing and grinding the tobacco raw materials to obtain fine tobacco powder;
s2, mixing the fine tobacco powder obtained in the above steps with a smoke agent, sodium alginate, tobacco stalk fiber, basalt fiber, essence and water according to a mass ratio of 100: 5: 8: 6: 0.6: 10: 30, and then uniformly stirring to form a dry-mass mixture;
wherein the tobacco stalk fiber is pretreated for 4 hours at 50 ℃ by using combined enzyme before being mixed;
the mass ratio of the combined enzyme to the tobacco stalk fiber is 1: 200;
the combined enzyme is a mixture of cellulase UO, cellulase RO, composite cellulase, hemicellulase and composite hemicellulase;
the mass ratio of the cellulase UO to the cellulase RO to the composite cellulase to the hemicellulase is 2: 2: 4: 1: 2;
s3, mixing and stirring the modified starch, the nano-cellulose dry powder and distilled water uniformly to prepare nano-cellulose/modified starch mixed slurry, wherein the mass ratio of the modified starch to the nano-cellulose dry powder to the distilled water is 6: 6: 47;
s4, uniformly coating the mixed pulp of the nano-cellulose and the modified starch prepared in the previous step on the outer surface of the dry mass mixture, and then performing multiple roll forming, drying and shredding through a household noodle press to obtain a tobacco product which is not combusted by heating, wherein the mass ratio of the mixed pulp of the nano-cellulose and the modified starch to the dry mass mixture is 8: 100.
in the same manner as in examples 1 and 2, the tobacco products prepared in examples 3 to 6 were prepared into cigarettes without combustion, and then the cigarettes without combustion were subjected to smoking evaluation, and the indexes of aroma, smoke amount, irritation and aftertaste of the cigarettes were scored, with the score range of each index being 1 to 10, and the higher the score, the better the sensory smoking quality was. The results are shown in Table 2.
| Examples | Fragrance | Amount of smoke | Sensation of irritation | Aftertaste | Total score |
| Example 3 | 7 | 6 | 7 | 6 | 26 |
| Example 4 | 7 | 6 | 8 | 7 | 28 |
| Example 5 | 7 | 6 | 9 | 8 | 30 |
| Example 6 | 7 | 6 | 6 | 6 | 25 |
TABLE 2 smoking quality scores for heated non-burning cigarettes of examples 3-6
In the embodiment of the invention, the microbial cellulose is subjected to superfine grinding and acidolysis by a homogenizer to prepare the nano-cellulose, the starch is chemically modified into modified starch, the nano-cellulose dry powder and distilled water are weighed according to a proportion, and the mixture is uniformly mixed and stirred to form unstable layered transparent slurry, namely nano-cellulose/modified starch mixed slurry. Wherein, the modified starch can reduce the flowing viscosity of the slurry and improve the temperature resistance.
According to the results in table 2, it can be seen that the smoking quality of the cigarette made of the non-combustible heated tobacco product prepared in example 4 is better than that of examples 3 and 6, the viscosity increase amplitude of the slurry is gradually reduced after the modified starch in the slurry reaches a certain content, mainly because starch molecules are macromolecular chains, hydrogen bonds and intermolecular forces are generated, molecular chains are intertwined with each other, a certain flowing viscosity is shown, the higher the concentration of the macromolecular chains in the slurry is, the more the molecular chain interaction opportunities are, the higher the viscosity of the slurry is, the concentration of the modified starch molecular chains is continuously increased, and the interaction force between the molecular chains cannot be increased in proportion, which means that the slurry viscosity increase rate is reduced.
From the results of example 4 and example 5, it can be seen that, under the condition that the solid content of the slurry is the same, the amount of the modified starch is reduced, the amount of the nanocellulose is increased, and the viscosity of the slurry is greatly reduced, mainly because the nanocellulose is insoluble in water, is dispersed in starch molecules, increases the distance between starch molecular chains, hinders the entanglement between starch macromolecular chains, and plays a role of a plasticizer, so that the viscosity of the starch slurry is reduced. Therefore, the nanocellulose is added into the modified starch, so that the viscosity of the pulp can be reduced, the pulp can be used for sizing the fiber, the breaking strength and the breaking elongation of the fiber can be improved, and the tensile strength and the fracture resistance of the tobacco product can be further improved.
In addition, in the embodiment of the invention, in order to improve the smoke amount, the atomizing agent can be added into the nano cellulose/modified starch mixed slurry and uniformly stirred, so that the smoke amount generated during suction is improved.
The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the specific embodiments of the invention be limited to these descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. A preparation method of a non-combustion tobacco product heated by a rolling method is characterized by comprising the following steps:
s1, crushing and grinding the tobacco raw materials to obtain fine tobacco powder;
s2, mixing the fine tobacco powder obtained in the step with a smoke agent, an adhesive, tobacco stem fibers, external fibers and essence, and then adding water to stir uniformly to form a dry-mass mixture;
s3, mixing and stirring the modified starch, the nano cellulose dry powder and distilled water uniformly to prepare nano cellulose/modified starch mixed slurry;
s4, uniformly coating the mixed pulp of the nano cellulose and the modified starch prepared in the step on the outer surface of the dry lumpy mixture, and then rolling and forming, drying and shredding the mixture for multiple times by a household noodle press to prepare the tobacco product which can not be burnt by heating.
2. The method for preparing a rolled heat non-combustible tobacco product according to claim 1, wherein the cabo fiber is pre-treated for 4-5h at 50-52 ℃ with the combined enzyme before mixing in step S2.
3. The method of claim 2, wherein the mass ratio of the combined enzyme to the stem fibers is 1: 200.
4. The method of claim 3, wherein the enzyme combination is a mixture of cellulase UO, cellulase RO, complex cellulase, hemicellulase, and complex hemicellulase.
5. The method for producing a non-combustible rolled tobacco product according to claim 4, wherein the cellulase UO, the cellulase RO, the composite cellulase, the hemicellulase and the composite hemicellulase are present in a mass ratio of 2: 2: 4: 1: 2.
6. the method for preparing a non-combustible rolled tobacco product by heating according to claim 1, wherein the mass ratio of the fine tobacco powder, the smoke agent, the adhesive, the tobacco stem fiber, the outer fiber, the essence and the water in the step S2 is 100: (1-5): (3-8): (1-6): (0.1-0.6): (5-10): (10-30).
7. The method of claim 1, wherein the binder in step S2 is at least one of sodium alginate, CMC, chitosan, guar gum, and cellulose acetate.
8. The method of claim 1, wherein the basalt fiber is used as the outer fiber in the step S2.
9. The method for preparing a non-combustible rolled tobacco product by heating according to claim 1, wherein the mass ratio of the modified starch to the dried nanocellulose powder to the distilled water in step S3 is (3-6): (3-6): (44-47).
10. The method for preparing a rolled heated non-combustible tobacco product according to claim 1, wherein the mass ratio of the nanocellulose/modified starch mixed slurry to the dry mass mixture in step S4 is (1-8): 100.
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