A heating cigarette additive and a preparation method thereof

Abstract

The application provides a preparation method of a tobacco additive, which comprises the following steps: A) mixing tobacco waste and a solvent, adjusting the pH value by using an alkali, and distillation extraction; and B) collecting distillates by using an organic acid, so that the tobacco additive is obtained. The tobacco additive prepared by using the application is derived from tobacco waste, is green and environment-friendly, can effectively improve satisfaction, and can also increase tobacco original fragrance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco, in particular to a tobacco additive, a preparation method thereof and a cigarette. BACKGROUND

[0002] In recent years, the development of heat-not-burn cigarettes, as a new type of tobacco product, has been rapid. It adopts the mode of "heating but not burning" to heat tobacco, but like traditional cigarettes, it will also produce visible smoke. The non-burning feature greatly reduces harmful substances in the smoke. As a key factor determining the overall quality, smoke aerosol has an important influence on the sensory quality of smoke. Since the heating temperature of low-temperature heat-not-burn cigarettes is relatively low, the taste is not as full as that of traditional cigarettes, and the smoke is not as obvious as that of traditional cigarettes. In order to improve the tobacco aroma and satisfaction, a suitable tobacco additive is developed to meet the needs of consumers. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to provide a tobacco additive. The tobacco additive provided by the present application is derived from tobacco waste, which can effectively improve the satisfaction and increase the tobacco aroma.

[0004] The present application provides a preparation method of a tobacco additive, comprising the following steps:

[0005] A) mixing tobacco waste and a solvent, adjusting the pH value with a base, and distillation extraction;

[0006] B) collecting the distillate with an organic acid to obtain the tobacco additive.

[0007] Preferably, the base in step A) comprises sodium hydroxide or sodium carbonate; the mixing time is 5-24h; and the pH value is adjusted to 9.5-14.

[0008] Preferably, the step of distillation extraction in step A) comprises: passing saturated steam into the extraction tank, first performing steam pressure boosting and blasting 1-3 times, the blasting pressure is 1.4-1.6MPa, and the single blasting time is 5-10min, and then performing extraction.

[0009] The extraction pressure is 0.1-0.2Mpa, the extraction time is 0.3-4h, and the extraction temperature is 80-102℃.

[0010] Preferably, the organic acid comprises one or more of citric acid, benzoic acid, tartaric acid, lactic acid, acetylpropionic acid or malic acid.

[0011] Preferably, the mass concentration of the organic acid is 0.5-8wt%.

[0012] Preferably, the molar ratio of nicotine content in the tobacco waste to the organic acid is 1:1-3.

[0013] The application provides a tobacco additive prepared by the preparation method.

[0014] The application provides a tobacco sheet comprising the tobacco additive.

[0015] Preferably, the addition amount of the tobacco additive is 0.02wt%-1wt%.

[0016] The application provides a cigarette comprising the tobacco sheet or the tobacco additive prepared by the preparation method.

[0017] Compared with the prior art, the application provides a preparation method of a tobacco additive, comprising the following steps: A) mixing tobacco waste and a solvent, adjusting the pH value by alkali, and distillation extraction; B) collecting the distillate by using an organic acid, and obtaining the tobacco additive. DETAILED DESCRIPTION

[0018] The application provides a tobacco additive, a preparation method thereof and a cigarette, and those skilled in the art can refer to the content herein, and appropriately improve process parameters to realize. It should be particularly pointed out that all similar replacements and changes are obvious to those skilled in the art, and they all belong to the protection scope of the application. The method and application of the application have been described by the preferred embodiments, and relevant personnel can obviously change or appropriately change and combine the method and application herein without departing from the content, spirit and scope of the application, to realize and apply the technology of the application.

[0019] The application provides a preparation method of a tobacco additive, comprising the following steps:

[0020] A) mixing tobacco waste and a solvent, adjusting the pH value by alkali, and distillation extraction;

[0021] B) collecting the distillate by using an organic acid, and obtaining the tobacco additive.

[0022] The preparation method of the tobacco additive provided by the application first mixes tobacco waste and a solvent.

[0023] The tobacco waste in the application is well known to those skilled in the art, including but not limited to waste tobacco leaves, tobacco ash, tobacco dust, tobacco stems and other solid waste.

[0024] The solvent in the application comprises water.

[0025] In the present application, the mass ratio of tobacco waste and solvent is 2:25-35;

[0026] The present application does not limit the specific way of mixing, which is well known to those skilled in the art. The mixing time is 5-24h, preferably 10-24h.

[0027] After mixing, adjust the pH value by adding alkali. The alkali includes sodium hydroxide or sodium carbonate; the pH value is adjusted to 9.5-14; preferably 10-13.

[0028] Then distillation extraction is carried out; in addition, saturated steam is introduced into the extraction tank, first steam pressure is boosted and exploded 1-3 times, the explosion pressure is 1.4-1.6MPa, the single explosion time is 5-10min, then the pressure in the extraction tank is maintained at 0.1-0.2MPa, the additional saturated steam can supplement the solvent in the extraction tank to avoid excessive loss of solvent, and also can maintain the heat in the extraction tank.

[0029] The distillation extraction time of the present application is preferably 0.3-4h; more preferably 2-3h, the steam temperature is based on the liquid material temperature, the liquid material temperature is 80-102℃; preferably 98-102℃.

[0030] The distillation product is collected by using organic acid, and the tobacco additive is obtained.

[0031] The organic acid of the present application includes one or more of citric acid, benzoic acid, tartaric acid, lactic acid, acetylpropionic acid or malic acid. Preferably, it is one or more of citric acid, tartaric acid or lactic acid; most preferably, it is citric acid.

[0032] The mass concentration of the organic acid of the present application is 0.5-8wt%; more preferably 1-5wt%; it can be specifically 1wt%, 2wt%, 3wt%, 4wt% or 5wt%; or a point value between any two of the above.

[0033] Specifically, the molar ratio of nicotine content and organic acid in the tobacco waste of the present application is 1:1-3; preferably 1:1-2.

[0034] In one embodiment, the molar ratio of nicotine content and organic acid in the tobacco waste of the present application is 1:1;

[0035] In one embodiment, the molar ratio of nicotine content and organic acid in the tobacco waste of the present application is 1:2;

[0036] In one embodiment, the molar ratio of nicotine content and organic acid in the tobacco waste of the present application is 1:1.5.

[0037] The present inventors find that only when the molar ratio of nicotine content and organic acid in the tobacco waste is within the above range, the impact force is strong, the mouth is dry, there is no residue, and the original tobacco aroma can be well preserved.

[0038] The nicotine content in the present application refers to the nicotine content of the tobacco waste measured by the well-known national standard method of the present application.

[0039] The present application provides a tobacco additive prepared by the preparation method of any one of the above technical solutions.

[0040] The present application has been clearly described above for the preparation method, and will not be repeated here.

[0041] The present application provides a tobacco sheet comprising the tobacco additive of the above technical solution.

[0042] The tobacco sheet of the present application can also comprise conventional adjuvants for those skilled in the art.

[0043] The addition amount of the tobacco additive of the present application in the tobacco sheet is 0.02wt%-1wt%; preferably 0.02wt%-0.06wt%. It can be specifically 0.02wt%, 0.03wt%, 0.04wt%, 0.05wt% or 0.06wt%; or the point value between any two of the above.

[0044] Particularly preferably, the addition amount of the tobacco additive in the tobacco sheet is 0.06wt%. The present inventors find that the addition amount of the tobacco additive prepared by the present application in the tobacco sheet in the above proportion can increase the strength and meet the strong feeling.

[0045] The present application provides a cigarette comprising the tobacco sheet of the above technical solution or comprising the tobacco additive prepared by the preparation method of any one of the above technical solutions.

[0046] The cigarette provided by the present application can comprise the tobacco sheet added with the tobacco additive as described above;

[0047] The cigarette provided by the present application can also be a blank cigarette directly added with the tobacco additive of the present application.

[0048] The addition amount of the tobacco additive and cigarette of the present application is 1μL-10μL per cigarette; preferably 1μL per cigarette.

[0049] The cigarette of the present application refers to the conventional heated cigarette on the market.

[0050] The application provides a preparation method of a tobacco additive, which comprises the following steps: A) mixing tobacco waste and a solvent, adjusting the pH value by adding an alkali, and distillation extraction; and B) collecting the distillate by using an organic acid, so as to obtain the tobacco additive.

[0051] The tobacco additive contains not only nicotine and other flavor components, but also volatile flavor components such as nornicotine, pseudoproscillidine and neophytadiene.

[0052] In the present application, "one or more" refers to one or more, and "multiple" refers to two or more. "At least one of the following" or the like refers to any combination of the items, including any combination of single or multiple items.

[0053] It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and part or all of the steps can be executed in parallel or in sequence, and the execution order of the processes should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0054] In the present application, the numerical ranges and parameters involved have been presented as accurately as possible in the relevant values in the specific embodiments. However, any numerical value inevitably contains a standard deviation due to individual test methods. Therefore, unless otherwise explicitly stated, it should be understood that all numerical ranges or specific data used in the present disclosure can have a certain reasonable deviation within a certain range, for example: 1% or 0.5%.

[0055] Some cases are described in the examples and comparative examples of the present application, in which the examples show some implementation manners of the present application. However, this does not mean that the effects of the present application can only be achieved in these cases.

[0056] In order to further illustrate the present application, the following describes in detail a tobacco additive provided by the present application, a preparation method thereof and a cigarette in combination with examples.

[0057] Example 1

[0058] Take 2 kg of tobacco waste and 30 kg of solvent, and mix them thoroughly for 12 hours. Add alkali reagents such as NaOH and sodium carbonate to the mixture to adjust the pH of the mixture to 12.

[0059] Distillation process: saturated steam is added into the extraction tank, first steam pressure blasting 3 times, the blasting pressure is 1.4 MPa, single blasting time is 5 min, then keep the pressure of the extraction tank 0.11 MPa, the saturated steam can supplement the solvent in the extraction tank to avoid excessive loss of solvent, and also can maintain the heat in the extraction tank.

[0060] Distillation extraction time is 2 hours, the steam temperature is based on the liquid material temperature, the liquid material temperature is 100±2℃.

[0061] Collecting distillate: 2L organic acid solution is collected to 10L solution to stop.

[0062] The distillation liquid is concentrated to 1000g under reduced pressure to stop, and the tobacco additive is obtained.

[0063] The organic acid is citric acid respectively, and the molar ratio of nicotine: citric acid is 2:1.

[0064] The concentration of the organic acid solution is 2%wt.

[0065] The principle of pressure blasting is to heat the steam to 180-235℃, maintain the pressure for a period of time, and then suddenly release the pressure. The high-pressure steam expands rapidly to do work, converting heat energy into mechanical work, effectively destroying the structure of the material under the condition of high-pressure shock wave. Steam blasting promotes the volatilization of volatile substances, which are collected into the distillate.

[0066] Comparative example 1

[0067] The same as example 1, the difference is that the organic acid is selected as hydrochloric acid; the molar ratio of nicotine: hydrochloric acid is 1:1.

[0068] Example 2

[0069] The same as example 1, the difference is that the organic acid is selected as lactic acid; the molar ratio of nicotine: lactic acid is 1:1.5.

[0070] Example 3

[0071] The same as example 1, the difference is that the organic acid is selected as lactic acid; the molar ratio of nicotine: lactic acid is 1:1.

[0072] Comparative example 2

[0073] The same as example 1, the difference is that the organic acid is selected as phosphoric acid; the molar ratio of nicotine: phosphoric acid is 1.5:1.

[0074] Comparative example 3

[0075] The same as example 1, the difference is that the organic acid is selected as phosphoric acid; the molar ratio of nicotine: phosphoric acid is 1:1.

[0076] Example 4

[0077] The same as example 1, except that the organic acid is tartaric acid; the molar ratio of nicotine: tartaric acid is 1:2.

[0078] Example 5

[0079] The same as example 1, except that the organic acid is tartaric acid; the molar ratio of nicotine: tartaric acid is 1:2.

[0080] Example 6

[0081] The same as example 1, except that the organic acid is tartaric acid; the molar ratio of nicotine: tartaric acid is 1:2.

[0082] Example 7

[0083] The same as example 1, except that the organic acid is tartaric acid; the molar ratio of nicotine: tartaric acid is 1:2.

[0084] Verification Example 1

[0085] The tobacco additive was added to the tobacco sheet of the heated cigarette in an amount of 0.06%, and a heated cigarette was prepared, and 8 professionals were organized to smoke and evaluate.

[0086] The results of the smoking evaluation are as follows:

[0087] The application effect of the tobacco additive in the low-temperature heated cigarette is shown in Table 1:

[0088] Table 1

[0089]

[0090]

[0091] As can be seen from the above table, the tobacco additive prepared from citric acid, lactic acid and tartaric acid according to the present application has a better effect than the rest of the acids, and at a specific ratio according to the present application, the sensory effect is better, and there is a significant difference with the rest of the groups.

[0092] Verification Example 2

[0093] The nicotine salt tobacco additive prepared in example 7 was added in different amounts, and the application effect in the heated cigarette was as shown in Table 2.

[0094] Table 2

[0095]

[0096] As can be seen from Table 2, the effect is optimal when the addition amount is 0.06wt%.

[0097] Verification Example 3

[0098] The tobacco additives of the inventive examples and the comparative examples were directly injected into the blank cigarettes. Specifically, the added amounts were 1 μL or 10 μL, respectively.

[0099] Table 3

[0100]

[0101]

[0102] *Note: The sample injector took 1 μL or 10 μL of the tobacco additive solution and injected into the blank heated cigarette.

[0103] The results show that the effect is better when the added amount is 1 μL. The nicotine salt tobacco additives of citric acid, lactic acid and tartaric acid all have good effects and can obviously improve the aroma and physiological satisfaction of the heated cigarette.

[0104] The above only describes the preferred embodiments of the present application, and it should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered within the scope of protection of the present application.

Claims

1. A method for preparing a tobacco additive, comprising the following steps: A) mixing tobacco waste and a solvent, adjusting pH with a base, and distillative extraction; the tobacco waste comprising waste tobacco leaves, tobacco ash, tobacco dust, or tobacco stems; the step of distillative extraction comprising: Saturated steam is introduced into the extraction tank, and then steam pressure is increased and exploded for 1-3 times, with an explosion pressure of 1.4-1.6 MPa and a single explosion time of 5-10 min, followed by extraction; The extraction pressure is 0.1-0.2 MPa, the extraction time is 0.3-4 h, and the extraction temperature is 80-102℃; B) collecting distillate by using organic acid, thereby obtaining the tobacco additive; The organic acid includes one or more of citric acid, benzoic acid, tartaric acid, lactic acid, acetylpropionic acid or malic acid, and the mass concentration of the organic acid is 0.5-8 wt%; The molar ratio of nicotine content to organic acid in the tobacco waste is 1:1-3.

2. The production method according to claim 1, characterized by, In step A), the base includes sodium hydroxide or sodium carbonate, the mixing time is 5-24 h, and the pH value is adjusted to 9.5-14.

3. A smoking article additive characterised in that, The tobacco additive is prepared by the method according to any one of claims 1-2.

4. A tobacco sheet, characterized by, The tobacco additive according to claim 3.

5. The tobacco sheet according to claim 4, characterized in that, The addition amount of the tobacco additive is 0.02 wt%-1 wt%.

6. A cigarette, characterized by The tobacco sheet according to claim 4 or the tobacco additive prepared by the method according to any one of claims 1-2.

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