EP4652859A1

EP4652859A1 - New tobacco improving sensory evaluation quality, and preparation method for heating section and thick-paste-method sheet thereof

Info

Publication number: EP4652859A1
Application number: EP24878848.1A
Authority: EP
Inventors: Dafeng Yin; Bo KONG; Yongbo QU; Lin DAI; Changjian Deng; Yiqing HUANG; Yuqi Cui; Yong Jin; Ping Huang; Tingting Peng
Original assignee: China Tobacco Hunan Industrial Co Ltd
Current assignee: China Tobacco Hunan Industrial Co Ltd
Priority date: 2023-10-19
Filing date: 2024-09-30
Publication date: 2025-11-26
Also published as: WO2025082204A1; CN117441926B; JP2026503789A; CN117441926A; TW202533774A; KR20250140125A

Abstract

The present invention belongs to the field of tobacco materials. Disclosed is a method for improving the sensory evaluation quality of a thick-paste-method sheet for tobaccos, which method comprises: obtaining a thick paste comprising an adhesive and cigarette ash, adding additives to the thick paste and regulating the pH to 3-6, and then stirring and reacting same at a temperature of 50-95°C and a low pressure, so as to obtain a modified thick paste; and subjecting the modified thick paste to paste distribution and drying treatment, so as to obtain a thick-paste-method sheet for the tobaccos. The additives comprise an additive A, an additive B and an additive C, wherein the additive A is at least one of ammonium dihydrogen phosphate, ammonium phosphate and diammonium hydrogen phosphate; the additive B is a compound having formula 1; and the additive C is a monosaccharide. The method can selectively improve the release content of a target aroma substance and improve the smoking taste of a tobacco sheet.

Description

This application claims the priority to Chinese Patent Application No. 202311357207.X, titled "NEW TOBACCO IMPROVING SENSORY EVALUATION QUALITY, AND PREPARATION METHOD FOR HEATING SECTION AND THICK-PASTE-METHOD SHEET THEREOF", filed on October 19, 2023 with the China National Intellectual Property Administration, which is incorporated herein by reference in its entirety.

FIELD

The present disclosure relates to the field of new materials for a new tobacco, and in particular to the technical field of the design and production of a thick-paste-method sheet for a new tobacco.

BACKGROUND

Tobacco sheets were adopted as a reprocessing technology in the 1960s to address the reuse of waste materials during tobacco processing. However, as people pay more and more attention to cigarette health, tobacco sheets begin to play an important role. Due to their more easily adjustable chemical composition and combustion properties compared to traditional tobacco leaves, tobacco sheets have been endowed with the function of reducing tar and harm, and they are used as a functional carrier or a main material to improve the combustion state of cigarettes and adjust the chemical composition of smoke. Now, with the rise of heated cigarettes (new tobacco), tobacco sheets have become the main new smoking material in the field of new tobacco, and their functional role has been further expanded. The methods of preparing tobacco sheets mainly include thick paste method, roll pressing method, papermaking method and improved papermaking method (dry method). At present, 80% of the new smoking materials in the field of new tobacco use thick-paste-method sheets or roll-pressing-method sheets. When producing sheets by the above-mentioned two methods, cigarette powder and an adhesive must be mixed to make thick paste before they can be made into sheets. However, there are some quality problems such as insufficient smoke aroma, dull aroma, poor aroma quality and heavy adhesive smell in the sheets produced by the traditional thick-paste-method process or roll pressing-method process. The above-mentioned quality problems are particularly prominent when above-mentioned traditional processes are used to manufacture new tobacco (such as heated cigarettes).
In order to improve the evaluation taste of sheets, some ways of adding flavors and fragrances are reported in the prior art. For example, China patent document with publication number of CN113508918A reported a preparation method of long-fragrant heated non-combustible tobacco sheets. By adding a mixture of macromolecular flavor precursors, thermal conductive adhesive, thermal conductive colorant and tobacco powder into a slurry of wood pulp fibers, atomizing agent and water, and by controlling the stirring speed of slurry, increasing the stirring speed and temperature of thick paste, and selecting suitable coating plate and covering film, a new tobacco sheet with uniform, smooth and easy peeling can be obtained by freeze-drying technology. Although this technology can achieve good technical effects, it still has problems such as insufficient smoke aroma, flat aroma, poor aroma quality, heavy adhesive smell, and unsatisfactory smoking taste.

SUMMARY

Aiming at the problems such as insufficient smoke aroma, flat aroma, poor aroma quality, heavy adhesive smell, unsatisfactory smoking taste in existing thick-paste-method sheets for new tobacco (heated cigarettes), the first purpose of the present disclosure is to provide a method for improving sensory evaluation quality of a thick-paste-method sheet for new tobacco (heated cigarettes) with the aim of improving the smoking taste of the prepared thick-paste-method sheet for a new tobacco (heated cigarettes).
The second purpose of the present disclosure is to provide a thick-paste-method sheet for a new tobacco (heated cigarettes) prepared by the preparation method and use in a new tobacco (heated cigarettes) thereof.
The third object of the present disclosure is to provide a new tobacco (heated cigarettes) comprising the thick-paste-method sheet.
A composition is provided by the present disclosure, which comprises a thick paste of an adhesive and cigarette powder, and an additive;

the additive comprises an additive A, an additive B and an additive C;
the additive A is at least one of ammonium dihydrogen phosphate, ammonium phosphate and diammonium hydrogen phosphate;
the additive B is a compound represented by formula 1;
R is H, C1-C6 alkyl, C1-C6 alkyl with a substituent, or a heterocyclic ring;
the substituent is at least one of hydroxyl, mercapto, aryl, carboxyl, amido, heterocyclyl and amino; and
the additive C is a monosaccharide.

In the composition of the present disclosure, the adhesive is at least one of a plant gum, a starch derivative, CMC and sodium alginate;

preferably, the plant gum is at least one of xanthan gum, tamarind gum, carrageenan, guar gum and konjac gum;
preferably, the starch derivative is at least one of modified starch, oxidized starch and etherified starch;
preferably, an atomizing agent is also allowed to be added into the thick paste, and the atomizing agent includes at least one of ethylene glycol and glycerol;
preferably, the cigarette powder comprises tobacco raw materials; preferably, the cigarette powder is also allowed to comprise at least one of tobacco leaf raw materials, stem bits, papermaking-method sheet shreds, tea leaves, and roots, stems, leaves, flowers or fruits of a plant.

Preferably, additional plant fibers are allowed to be added into the thick paste.
On the one hand, use of the composition in improving sensory evaluation quality of a thick-paste-method sheet for a new tobacco is provided by the present disclosure.
A method for improving sensory evaluation quality of a thick-paste-method sheet for a new tobacco, which comprises: obtaining a thick paste comprising an adhesive and cigarette powder, adding additives to the thick paste and adjusting the pH of the system to 3 to 6, and then stirring and reacting the system at a temperature of 50°C to 95°C and a low pressure (negative pressure), so as to obtain a modified thick paste; and subjecting the modified thick paste to paste distribution and drying treatment, so as to obtain a thick-paste-method sheet for a new tobacco;

According to the present disclosure, the additive comprising an additive A, an additive B and an additive C is innovatively added into the thick paste, and combined with the joint control of low-pressure stirring and temperature, it helps to facilitate the chemical synergy of the additive, the improvement of flavor substances, the reduction of off-flavor and the improvement of smoking taste.
In the present disclosure, the components and contents in the thick paste can be conventional or obtained by known means.
For example, the adhesive is at least one of a plant gum, a starch derivative, CMC and sodium alginate. In which, the plant gum is at least one of xanthan gum, tamarind gum, carrageenan, guar gum and konjac gum. The starch derivative is at least one of modified starch, oxidized starch and etherified starch;

in the present disclosure, the cigarette powder comprises tobacco raw materials. The cigarette powder is also allowed to comprise at least one of tobacco leaf raw materials (such as cut tobacco), stem bits, papermaking-method sheet shreds, tea leaves, roots, stems, leaves, flowers or fruits of a plant;
for example, an atomizing agent is also allowed to be added to the thick paste, and the atomizing agent, for example, includes at least one of ethylene glycol and glycerol;
for example, additional plant fibers are added to the thick paste.

Other ingredients allowed in the industry are also added to the thick paste. In addition, the content of components in the thick paste can also be reasonably controlled based on known principles.
In the present disclosure, the component of the additive and the joint control of the low-pressure stirring process and the temperature are the keys to improve the thick-paste-method smoking taste.
In the present disclosure, the additive A is ammonium dihydrogen phosphate. The research of the present disclosure shows that ammonium dihydrogen phosphate, used as additive A, can be further combined with additive B, additive C and alcoholization process, which can further improve the smoking taste of the prepared sheet.
In the present disclosure, in formula 1, the heterocyclic ring is, for example, a saturated or aromatic ring, wherein the heteroatom is, for example, O, N, and preferably N. Further, the heterocyclic ring is tetrahydropyrrole ring, indole ring, pyrrole, imidazole, etc.
In the present disclosure, the additive B is a compound with R containing a heterocyclic ring, which includes at least one of formulas 1-A to 1-D;
The research of the present disclosure shows that the additive B represented by formula 1-A to 1-D can be further combined with additive A, additive C and alcoholization process, and the smoking taste of the prepared sheet can be further improved.
Preferably, the additive B is a mixture of formula 1-A and formula 1-C with a weight ratio of 1 :0.5-2. The research shows that the preferred additive B can further improve the release effect of the target aroma substances unexpectedly, and further improve the smoking effect.
In the present disclosure, the monosaccharide is at least one of arabinose, ribose, xylose, lyxose, glucose, mannose, fructose and galactose, preferably a mixture of ribose and glucose. The preferred monosaccharide can further cooperate with the components and the process of the present disclosure, which can further improve the content of the target aroma and further improve the smoking taste.
In the present disclosure, the weight ratio of the additive A, the additive B and the additive C in the additive is 1:0.5-10:0.5-10, and further can be 1:1-2:1-10.
In the present disclosure, the weight ratio of the additive to the thick paste is less than or equal to 0.3:1, preferably 0.1-0.2:1.
In the present disclosure, after the additive is added, the pH of the system is adjusted by a pH regulator.
The pH regulator can be conventional acid or alkali, for example, the acid can be phosphoric acid, and the alkali can be sodium hydroxide, potassium hydroxide, etc.
In the present disclosure, the pH of the thick paste is controlled to be 3 to 5 through the pH regulator.
In the present disclosure, the thick paste added with an additive and subjected to pH regulation is reacted under low pressure, which is beneficial to improving the synergy of components and further improving the smoking taste of the prepared sheet.
Preferably, the pressure of the low pressure is less than 0.1 Mpa, preferably 0.001 Mpa to 0.05 Mpa.
In the present disclosure, the low-pressure stirring process comprises a first-stage holding process at T1 temperature and a second-stage holding process at T2 temperature, in which, T1 is 55°C to 65°C and T2 is 75°C to 85°C. The research shows that combined with the synergistic additive, the two-stage gradient low-pressure stirring process can be further improve the chemical synergy of the components and can be further improve the smoking taste of the sheet.
In the present disclosure, the low-pressure stirring is performed for a time of 4 h to 30 h, preferably 4 to 24 h; when the preferred two-stage low-pressure stirring process is adopted, the first-stage low-pressure stirring process is preferably performed for a time of 2 h to 15 h, preferably 2 to 4 h; the second low-pressure stirring process is preferably performed for a time of 2 h to 15 h, preferably 2 h to 4 h.
A thick-paste-method sheet for a new tobacco (heated cigarettes) prepared by the preparation method is also provided by the present disclosure.
A heating section of a new tobacco (heated cigarettes) added with the thick-paste-method sheet for new tobacco (heated cigarettes) prepared by the preparation method is also provided by the present disclosure.
A new heated cigarette having the heating section of the present disclosure is also provided by the present disclosure.

Beneficial effects:

According to the present disclosure, an additive comprising an additive A, an additive B and an additive C is innovatively added into the thick paste, and combined with the joint control of low-pressure and temperature, it helps to facilitate the chemical synergy of additives, the improvement of flavor substances, the reduction of off-flavor and the improvement of smoking taste.
The research of the present disclosure also shows that by innovatively adopting the component of formula 1 with R containing a heterocyclic ring as additive B, further cooperating with ammonium dihydrogen phosphate as additive and combining with low-pressure two-stage gradient, the synergy can be unexpectedly further realized, which is helpful to further improve the content of target aroma components, reduce off-flavors and significantly improve the sensory evaluation effect of smoking.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a comparative diagram of aroma components of sheets prepared in Example 1 and Comparative example 1; the upper spectrum line is the spectrum line of Example 1, and the lower spectrum line is the spectrum line of Comparative example 1.

DETAILED DESCRIPTION

The present disclosure discloses a new tobacco with improved sensory evaluation quality, and a preparation method for heating section and thick-paste-method sheet thereof. Those skilled in the art can learn from the content herein and appropriately improve the process parameters to realize the present disclosure. It should be particularly noted that all similar substitutions and modifications are obvious to those skilled in the art, and they are deemed to be included in the present disclosure. The method and use of the present disclosure have been described through preferred embodiments, and those skilled in the art can apparently make modifications or appropriate changes and combinations to the method and use herein without departing from the content, spirit and scope of the present disclosure to realize and apply the technology of the present disclosure.
In the present disclosure, the initial thick paste can be obtained based on well-known means in the industry, for example, it can be obtained by pulpifying conventional adhesive components and cigarette powder.
For example, as a typical example, 15 kg of sucrose fiber and 450 kg of water were weighed out and placed into a high-speed hydraulic defibrator for defibration for 70 min, with the stirring speed of 5000 r/min. 3 kg of guar gum, 0.5 kg of xanthan gum, 32 kg of 10% PEG solution and 5 kg of glycerol were put into the liquid in the above-mentioned hydraulic defibrator in sequence, and continuously stirred at 5000 r/min for 30 min for later use. At the same time, 60 kg of tobacco leaves, 30 kg of tobacco stems and 10 kg of tea leaves were dry-ground into 300 mesh cigarette powder for later use.
In the present disclosure, the thick paste modified by the additive and the method of the present disclosure can be formed into a thin sheet based on the known paste distribution, drying and peeling. For example, the drying temperature can be 98°C±3°C.
The present disclosure is further illustrated below in conjunction with examples.

Example 1

Step (1):

500 kg of the prepared adhesive and 100 kg of the prepared cigarette powder were mixed according to the batch formula requirements to form a uniformly mixed thick paste (initial thick paste). The additive A as ammonium dihydrogen phosphate, the additive B as compound represented by formula 1-A and the additive C as a mixture of ribose and glucose with a weight ratio of 1:1 were added into the initial thick paste in sequence; the weight ratio of the additive A, the additive B and the additive C was 1:2:1; the weight ratio of the additive (referring to the total weight of additives A to C) to the thick paste was 0.2:1; subsequently, the PH value of the thick paste was adjusted to 3.5 with phosphoric acid (pH regulator) to obtain mixed thick paste.

Step (2):

The mixed thick paste of step (1) was continuously stirred for 6 hours at a speed of 400 r/min at the holding temperature of (85±5) °C and low pressure of 0.02 Mpa to obtain modified thick paste for later use.

Step (3):

Then the modified thick paste was distributed, dried and peeled to form a sheet. The thickness of the sheet was 0.17 mm, and the moisture content of the sheet was 11.8%.
The sheets were rolled into a new tobacco (heated cigarettes), which were evaluated by seven specially trained sensory evaluation experts, and the sensory quality was evaluated according to the relevant methods in Sensory Evaluation Method for Reconstituted Tobacco Leaf (Papermaking Process) (YC/T 498-2014). The average value of quantitative scoring is shown in Table 1.

Comparative example 1

Compared with Example 1, the only difference is that the initial thick paste in step (1) was directly subjected to the treatments of step (3) to obtain a control sheet. The thickness of the sheet was 0.18 mm, and the moisture content of the sheet was 11.5%.
The aroma components of smoke with two different treatments were analyzed using GC/MS, in which the gas chromatographic parameters were: chromatographic column: HP-5MS capillary column (60.0 m×250 µm×0.25 µm); inlet temperature: 250°C, carrier gas: high purity helium, flow rate: 1.0 mL/min, split ratio: 15:1; programmed temperature rise: initial temperature of 40°C held for 2 min, increased at a rate of 8°C/min to 280°C and held for 25 min. Mass spectrometry parameters: ionization method: electron ionization (EI); ionization energy: 70 eV; ion source temperature: 230°C; quadrupole temperature: 150°C; scanning mode: full scanning; scanning range: 35 amu to 450 amu, and the comparison diagram of aroma components is shown in FIG. 1. It shows that the method of the present disclosure can selectively increase the content of target aroma substances.
The heets were rolled into a new tobacco (heated cigarettes), which were evaluated by seven specially trained sensory evaluation experts, and the sensory quality was evaluated according to the relevant methods in Sensory Evaluation Method for Reconstituted Tobacco Leaf (Papermaking Process) (YC/T 498-2014).

The results show that compared with the control sheets prepared in Comparative example 1, the final sheets prepared in Example 1 have obvious improvement in aroma quality, full smoke smell, less off-flavors, better coordination and less adhesive smell. The average value of quantitative scoring is shown in Table 1.

Table 1 Original record of sensory quality evaluation of reconstituted tobacco leaf (papermaking process)

Sample number	Eval uatin g indic ator	Aroma			Smoke		Off-flavors		Irritation		Smoking flavor			oth ers
Sample number	Eval uatin g indic ator	Aro ma qua lity	Aro ma quan tity	turbi d	Smoke concent ration	Fine ness	Wo ody aro ma	Other off-flavor s	Irrita tion	Bur ning	Pur ity	Com fort	Dry ness
	weig ht/to tal scor e	10	10	1 0	10	10	10	10	10	10	10	10	10	10
Example 1	107. 5	8	8.5	8	8.5	8	8	9	8.5	8	9	8	8	8
Comparat ive example 1	79.5	6	6.5	6	6	6	6	6.5	6	6	6	6	6.5	6

Table 2 Variation of main aroma components in the samples with two different treatments

No.	Compound name	Peak area (Example 1)	Peak area (Comparative example 1)	Percentage change of relative content
1	2-methylpyrazi ne	37833777	32151759	15%
2	furfural	34214361	55683374	38%
3	furfuryl alcohol	109657725	51821860	52.70%
4	2-acetyl pyrrole	22196898	4259262	80.80%
5	5-guaiacol	20717152	8797189	57.50%

As can be seen from FIG. 1 and Table 2, the new tobacco (heated cigarettes) rolled by the sheets in Example 1 show 2-methylpyrazine increased by 15%, furfural increased by 38%, furfuryl alcohol increased by 52.7%, 5-guaiacol increased by 57.5%, and 2-acetylpyrrole increased by 80.8% in the smoke. In addition, other typical target flavor components have increased to varying degrees.

Example 2

Compared with Example 1, the only difference was that 5 kg of adhesive and 1 kg of cigarette powder were mixed to form an initial thick paste, and on this basis, the components and proportions of the additive A, the additive B and the additive C in the preparation process were changed. The experimental groups were as follows:
Experimental group A: the additive A was diammonium hydrogen phosphate, and the total amount of the additive A remained unchanged.
Experimental group B: the additive B was formula 1-C, and the total amount of the additive B remained unchanged.
Experimental group C: the additive B was a mixture of formula 1-A and formula 1-C with a weight ratio of 1:1, and the total amount of the additive B remained unchanged.
Experimental group D: the additive B was a compound represented by formula 1 with R1 as benzyl, and the total amount of the additive B remained unchanged.
Experimental group E: the additive C was glucose, and the total amount of the additive C remained unchanged.
Experimental group F: the weight ratio of the additive A, the additive B and the additive C in the additive was 1:10:10, and the weight ratio of the additive to the thick paste was 0.1:1.

Example 3

Compared with Example 2C, the only difference was that low-pressure two-stage gradient treatment was adopted in step (2), and the different process was as follows: under the condition of 0.02 Mpa, the mixed thick paste in step (1) was kept at (60±5) °C for 3 h in advance, and then at 80±5)°C for 3 h to obtain modified thick paste.

Comparative example 2

Compared with Example 2B group, the only difference was that the same weight of ammonium lactate was used as the additive A.

Comparative example 3

Compared with Example 2B group, the only difference was that the pressure of the reaction process is normal pressure in step 2.

The smoking evaluations were conducted on Examples 2 to 3 and Comparative examples 2 to 3 according to the national standard method in Example 1. The results are shown in Table 3:

Table 3 Smoking evaluation results of Examples 2 to 3 and Comparative examples 2 to 3:

Sample number	Eval uatin g indic ator	Aroma			Smoke		Off-flavors		Irritation		Smoking flavor			Oth ers
Sample number	Eval uatin g indic ator	Aro ma qua lity	Aro ma quan tity	tur bid	Smoke concent ration	Fine ness	Wo ody aro ma	Other off-flavor s	Irrita tion	Burn ing	Pur ity	Com fort	Dry ness
	weig ht/to tal scor e	10	10	10	10	10	10	10	10	10	10	10	10	10
Example 2A	103. 5	8	8	8.0	8	7	8	8.5	8.0	8	8.5	8	8	7.5
Example 2B	104. 5	8	8.5	8.0	8	7.5	8	8.0	8.5	8	8.5	8	8	7.5
Example 2C	110. 5	9	9	8.5	9	8.5	8.5	9	8.5	8	8.5	8	8	8
Example 2D	100	7	7.5	8.0	8	7	7.5	8	8.0	7.5	8	8	8	7.5
Example 2E	103	7	7.5	8.0	8	7.5	8	8.5	8.5	8	8.5	8	7.5	8
Example 2F	103	7.5	8	8.5	7.5	7	8	8.0	8.5	8	8.5	7.5	8	8
Example 3	113. 5	9	9	8.5	9	8.5	9	9	9	8	9	8.5	9	8
Comparat ive example 2	100. 5	7	7.5	8.0	7.5	7.5	8	8.0	8.0	7.5	8.0	8	8	7.5
Comparat	96	6.5	6.5	7.5	7.5	7.5	7.5	8.0	7.5	7.5	7.0	8	8	7.0
ive example 3

As can be seen from Table 2, using ammonium dihydrogen phosphate as the additive A, and using compound represented by formula 1 with R as an aromatic heterocyclic ring (groups B to D), especially the combination formula 1-A and formula 1-C as additive A, can further cooperate to improve the release of target aroma substances and further improve the smoking taste. In addition, the two-stage low-pressure reaction (Example 3) can further improve the smoking taste of the prepared sheet.

Example 4

Compared with Example 1, the difference was that components and adding conditions of the additive were changed, specifically: step (1):
the additive A as ammonium phosphate, the additive B as formula 1-B and an additive C as mannose were added into the mixed paste in sequence; the weight ratio of the additive A, the additive B to the additive C was 1:1:1; the weight ratio of the additive to the thick paste was 0.2:1; the PH value of the thick paste was adjusted to 4.0 with phosphoric acid.

Step (2):

The mixed thick paste in the step (1) was continuously stirred for 6 h at the speed of 300 r/min at the holding temperature of (60±5) °C and low pressure of 0.02 Mpa for late use.

Step (3):

Then the thick paste was distributed, dried and peeled to form a sheet. The thickness of the sheet was 0.16 mm, and the moisture content of the sheet was 11.0%.

Example 5

Step (1):

500 kg of the prepared adhesive and 100 kg of cigarette powder were mixed according to the batch formula requirements to form a uniformly mixed thick paste. The additive A as ammonium dihydrogen phosphate, the additive B formula 1-B and the additive C as lyxose were added into the mixed paste in sequence; the weight ratio of the additive A: the additive B to the additive C was 1:1:10; the weight ratio of the additive to the thick paste was 0.15:1; and the PH value of the thick paste was adjusted to 5.0 with phosphoric acid.

Step (2):

The mixed thick paste in step (1) was continuously stirred for 8 h at the speed of 300 r/min at the holding temperature of (70±5) °C and low pressure of 0.02 Mpa for late use.

Step (3):

Then the thick paste was distributed, dried and peeled to form a sheet. The thickness of the sheet was 0.17 mm, and the moisture content of the sheet was 11.3%.

Example 6

Step (1):

500 kg of the prepared adhesive and 100 kg of cigarette powder were mixed according to the batch formula requirements to form a uniformly mixed thick paste. The additive A as ammonium dihydrogen phosphate, the additive B compound represented by formula 1-B and the additive C as arabinose were added into the mixed paste in sequence; the weight ratio of the additive A, the additive B and the additive C was 1:1:5; the weight ratio of the additive to the thick paste was 0.10:1; and the PH value of the thick paste was adjusted to 4.5 with phosphoric acid.

Step (2):

The mixed thick paste in step (1) was continuously stirred for 8 h at the speed of 500 r/min at the holding temperature of (60±5) °C and low pressure of 0.15 Mpa for late use.

Step (3):

Then the thick paste was distributed, dried and peeled to form a sheet. The thickness of the sheet was 0.18 mm, and the moisture content of the sheet was 11.8%.

Examples 4 to 6 were evaluated according to the method of Example 1, and the results are shown in Table 4.

Table 4 Evaluation results of Examples 4 to 6

Samp le numb er	Evaluat ing indicat or	Aroma			Smoke		Off-flavors		Irritation		Smoking flavor			Oth ers
Samp le numb er	Evaluat ing indicat or	Aro ma qual ity	Aro ma quan tity	tur bid	Smoke concentr ation	Fine ness	Wo ody aro ma	Oth er off-flav ors	Irritat ion	Burn ing	Pur ity	Com fort	Dryn ess
	weight/ total score	10	10	10	10	10	10	10	10	10	10	10	10	10
Exa mple 4	105.5	7.5	8	8.5	8	7	8	9	8.5	8	9	8	8	8
Exa mple 5	105	8	8	8.5	8	7	8	8.5	8.5	8	8.5	8	8	8
Exa mple 6	104.5	8	8	8.5	8	7	9	9	8.5	8	8.5	7	8	7

In summary, the process of the present disclosure, based on the additive and the low pressure reaction, can unexpectedly improve the release of the target aroma substance of the prepared sheet.
A new tobacco with improved sensory evaluation quality, and a preparation method for heating section and thick-paste-method sheet thereof provided by the present disclosure are described in detail hereinbefore. The principle and implementation of the present disclosure are illustrated by using specific embodiments herein. The above descriptions of the embodiments are only used to facilitate understanding of the method and the core idea of the present disclosure. It should be noted that, several improvements and modifications may be made to the present disclosure by those skilled in the art without departing from the principle of the present disclosure, and these improvements and modifications also fall within the protection scope of the claims of the present disclosure.

Claims

A composition, comprising: a thick paste of an adhesive and cigarette powder, and an additive;
the additive comprises an additive A, an additive B and an additive C;

the additive A is at least one of ammonium dihydrogen phosphate, ammonium phosphate and diammonium hydrogen phosphate;

the additive B is a compound represented by formula 1;

R is H, C1-C6 alkyl, C1-C6 alkyl with a substituent or a heterocyclic ring;

the substituent is at least one of hydroxyl, mercapto, aryl, carboxyl, amido, heterocyclyl and amino; and

the additive C is a monosaccharide.
The composition according to claim 1, wherein the adhesive is at least one of a plant gum, a starch derivative, CMC and sodium alginate;
preferably, the plant gum is at least one of xanthan gum, tamarind gum, carrageenan, guar gum and konjac gum;

preferably, the starch derivative is at least one of modified starch, oxidized starch and etherified starch;

preferably, an atomizing agent is also allowed to be added into the thick paste, and the atomizing agent includes at least one of ethylene glycol and glycerol;

preferably, the cigarette powder comprises tobacco raw materials; preferably, the cigarette powder is also allowed to comprise at least one of tobacco leaf raw materials, stem bits, papermaking-method sheet shreds, tea leaves, and roots, stem, leaves, flowers or fruits of a plant; and

preferably, additional plant fibers are allowed to be added into the thick paste.
Use of the composition according to claim 1 or 2 in improving sensory evaluation quality of a thick-paste-method sheet for a new tobacco.
A method for improving sensory evaluation quality of a thick-paste-method sheet for a new tobacco, comprising: obtaining a thick paste comprising an adhesive and cigarette powder, adding an additive to the thick paste and adjusting the pH of the system to 3 to 6, and then stirring and reacting the system at a temperature of 50°C to 95°C and a low pressure, so as to obtain a modified thick paste; and subjecting the modified thick paste to paste distribution and drying treatment, so as to obtain a thick-paste-method sheet for a new tobacco;
the additive comprises an additive A, an additive B and an additive C;

the additive A is at least one of ammonium dihydrogen phosphate, ammonium phosphate and diammonium hydrogen phosphate;

the additive B is a compound represented by formula 1;

R is H, C1-C6 alkyl, C1-C6 alkyl with a substituent, or a heterocyclic ring;

the substituent is at least one of hydroxyl, mercapto, aryl, carboxyl, amido, heterocyclyl and amino; and

the additive C is a monosaccharide.
The method according to claim 4, wherein the adhesive is at least one of a plant gum, a starch derivative, CMC and sodium alginate;
preferably, the plant gum is at least one of xanthan gum, tamarind gum, carrageenan, guar gum and konjac gum;

preferably, the starch derivative is at least one of modified starch, oxidized starch and etherified starch;

preferably, an atomizing agent is also allowed to be added into the thick paste, and the atomizing agent includes at least one of ethylene glycol and glycerol;

preferably, the cigarette powder comprises tobacco raw materials; preferably, the cigarette powder is also allowed to comprise at least one of tobacco leaf raw materials, stem bits, papermaking-method sheet shreds, tea leaves, and roots, stems, leaves, flowers or fruits of a plant; and

preferably, additional plant fibers are allowed to be added into the thick paste.
The method according to claim 4 or 5, wherein the additive A is ammonium dihydrogen phosphate.
The method according to any one of claims 4 to 6, wherein the additive B is a compound with R containing a heterocyclic ring, and includes at least one of the formulas 1-A to 1-D; and
The method according to any one of claims 4 to 7, wherein the monosaccharide is at least one of arabinose, ribose, xylose, lyxose, glucose, mannose, fructose and galactose; and
preferably, the PH is adjusted with an acid or an alkali.
The method according to any one of claims 4 to 8, wherein the weight ratio of the additive A, the additive B and the additive C in the additive is 1:0.5-10:0.5-10.
The method according to any one of claims 4 to 9, wherein the weight ratio of the additive to the thick paste is less than or equal to 0.3:1, preferably 0.1-0.2:1.
The method according to any one of claims 4 to 10, wherein the low-pressure stirring process comprises a first-stage low-pressure stirring process at T1 temperature and a second-stage low-pressure stirring process at T2 temperature, wherein T1 is 55°C to 65°C and T2 is 75°C to 85°C;
preferably, the pressure of the low pressure is less than 0.1 Mpa, preferably 0.001 Mpa to 0.05 Mpa;

preferably, the first low-pressure stirring process is performed for a time of 2 h to 15 h, preferably 2 h to 4 h; and

preferably, the second low-pressure stirring process is performed for a time of 2 h to 15 h, preferably 2 h to 4 h.
A thick-paste-method sheet for a new tobacco prepared by the method according to any one of claims 4 to 11.
A heating section for a new heated cigarette, added with the thick-paste-method sheet according to claim 12.
A new heated cigarette, having the heating section according to claim 13.