Method for improving usability of upper leaves of flue-cured tobacco

Abstract

The invention belongs to the technical field of tobaccos, and particularly relates to a method for improving usability of upper leaves of flue-cured tobaccos. According to the method, after low-nicotine flue-cured tobacco plants are topped, auxin is sprayed to the topped positions and the front faces and the back faces of the tobacco leaves, the low-nicotine tobacco leaves are harvested, then the obtained low-nicotine tobacco leaves are prepared into tobacco shreds, and the tobacco shreds are evenly mixed with high-nicotine upper tobacco shreds to prepare cigarettes. According to the method, the upper tobacco leaves and the tobacco leaves of the low-nicotine flue-cured tobacco variety are mixed and proportioned, so that the taste is balanced, the irritation is reduced, the nicotine content is reduced, the usability of the upper tobacco leaves is improved, and large-scale production of the low-nicotine tobacco leaves is further achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco, and more particularly relates to a method for improving the usability of upper leaves of flue-cured tobacco. Background Art

[0002] At present, there are problems such as excessive irritation and high nicotine content in the upper tobacco leaves. Excessive irritation will make the tobacco products taste too irritating or bitter, affecting the consumer experience. At the same time, too many irritating ingredients may increase the content of harmful ingredients in cigarette products, which will have a negative impact on the health of consumers. Excessive nicotine content does not meet the market demand for low-nicotine cigarette products.

[0003] At present, the methods for improving the availability of upper tobacco leaves are mainly focused on regulating cultivation management measures, such as controlling the transplanting period, planting density, fertilization, application of exogenous substances, topping methods and the number of leaves left, and harvesting methods. Improving the availability of upper tobacco leaves is a complex system project, which is affected by many factors. The improvement effect of a single factor is limited, and the same management measure may produce different effects under different varieties and ecological conditions. There are situations where various management measures influence and restrict each other. Due to the combined influence of multiple factors and the differences under different varieties and ecological conditions, it is difficult to achieve the goal of large-scale improvement of the availability of upper leaves by simply relying on regulating cultivation management measures. Too little nitrogen application will result in insufficient aroma of the upper tobacco leaves; too much nitrogen application will cause the tobacco leaves to be too irritating. Therefore, in production practice, it is necessary to comprehensively use a variety of technologies and methods to more effectively improve the quality and availability of upper tobacco leaves.

[0004] In the process of field flue-cured tobacco cultivation, the production of low-nicotine tobacco leaves (nicotine content below 0.1%) has always been a challenge. At present, although low-nicotine tobacco leaves (nicotine content of about 0.04%) can be obtained by grafting tobacco and eggplant, this method is cumbersome, time-consuming and costly, which limits its application in large-scale production. It is urgent to explore other technical means to reduce production costs, improve production efficiency, meet market demand, promote the sustainable development of the tobacco industry, and realize the large-scale production of low-nicotine tobacco leaves (nicotine content below 0.1%). Summary of the invention

[0005] The purpose of the present invention is to provide a method for improving the availability of flue-cured tobacco upper leaves, by mixing low-nicotine tobacco leaves with shredded tobacco of highly irritating high-nicotine upper tobacco leaves in a certain proportion, so as to produce tobacco products with moderate strength, reduce nicotine content, improve the availability of flue-cured tobacco upper leaves, and meet the market demand for low-nicotine cigarette products, thereby achieving the purpose of increasing output, reducing costs, and improving product quality, and promoting the sustainable development of the tobacco industry.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] One of the technical solutions of the present invention is to provide a method for producing low-nicotine tobacco leaves, comprising the following steps:

[0008] The low-nicotine flue-cured tobacco plants are topped, and then auxin is sprayed on the topping area and the front and back sides of the tobacco leaves, and low-nicotine tobacco leaves are obtained after harvesting.

[0009] Furthermore, the low-nicotine flue-cured tobacco varieties include LAK326.

[0010] Furthermore, the concentration of the auxin is 20 mg / kg.

[0011] Furthermore, the spraying amount of the auxin is about 200 mL per plant, which can be achieved by natural dripping on the leaves.

[0012] Furthermore, the nicotine content of the low-nicotine tobacco leaves is below 0.1%.

[0013] The second technical solution of the present invention is to provide a method for improving the availability of upper leaves of flue-cured tobacco, the steps comprising:

[0014] The low-nicotine tobacco leaves are prepared into shredded tobacco, which is then evenly mixed with shredded tobacco leaves of high-nicotine upper tobacco leaves to prepare cigarettes.

[0015] Furthermore, the mass ratio of the shredded tobacco made from the low-nicotine tobacco leaves to the shredded tobacco made from the high-nicotine upper tobacco leaves is 0-1:0-1, and both are not 0.

[0016] The present invention discloses the following technical effects:

[0017] The present invention can adjust the nicotine content of cigarettes by mixing low-nicotine tobacco leaves and high-nicotine upper tobacco leaves, achieve a balance of nicotine content in tobacco leaves, and improve the availability of flue-cured tobacco upper leaves, making the upper tobacco leaves with strong irritation more commercially valuable, which helps to improve the utilization efficiency of tobacco leaf resources, reduce waste, improve production efficiency, reduce production costs, and reduce the impact on the environment, while ensuring that tobacco products have a moderate strength to meet the taste requirements of consumers.

[0018] The present invention can effectively reduce the nicotine content of the whole cigarette by mixing low-nicotine tobacco leaves. Reducing the nicotine content of cigarettes can reduce the dependence of smokers on nicotine and help reduce the smoking addiction of smokers. Nicotine is one of the main components that cause tobacco-related diseases. Reducing the nicotine content of cigarettes can reduce the health hazards of smoking and reduce the risk of tobacco-related diseases. At the same time, it can reduce the content of harmful substances in the secondhand smoke exhaled by smokers and protect the health of people around them. The market demand for low-nicotine cigarette products and consumers' preference for low-nicotine products are met.

[0019] The market demand for low-nicotine cigarette products is growing. Through this technical solution, tobacco products that meet market demand can be produced in large-scale production to meet consumers' preference for low-nicotine products. Through reasonable mixing ratios and production processes, tobacco products that meet market demand can be stably produced. Producing tobacco products that meet market demand can improve the competitiveness of enterprises.

[0020] The present invention balances the taste, reduces irritation, and reduces nicotine content by mixing and proportioning the upper tobacco leaves with tobacco leaves of low-nicotine flue-cured tobacco varieties, thereby improving the availability of the upper tobacco leaves and realizing large-scale production of low-nicotine tobacco leaves. DETAILED DESCRIPTION

[0021] Various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as limiting the present invention, but should be understood as a more detailed description of certain aspects, features, and embodiments of the present invention.

[0022] It should be understood that the terms described in the present invention are only for describing a particular embodiment and are not intended to limit the present invention. In addition, for the numerical range in the present invention, it should be understood that each intermediate value between the upper and lower limits of the scope is also specifically disclosed. The intermediate value in any stated value or stated range, and each smaller range between any other stated value or intermediate value in the described range is also included in the present invention. The upper and lower limits of these smaller ranges can be independently included or excluded in the scope.

[0023] Unless otherwise indicated, all technical and scientific terms used herein have the same meanings as those generally understood by those skilled in the art. Although the present invention describes only preferred methods and materials, any methods and materials similar or equivalent to those described herein may also be used in the implementation or testing of the present invention. All documents mentioned in this specification are incorporated by reference to disclose and describe the methods and / or materials associated with the documents. In the event of a conflict with any incorporated document, the content of this specification shall prevail.

[0024] It will be apparent to those skilled in the art that various modifications and variations may be made to the specific embodiments of the present invention description without departing from the scope or spirit of the present invention. Other embodiments derived from the present invention description will be apparent to those skilled in the art. The present invention description and examples are exemplary only.

[0025] The words “include,” “including,” “have,” “contain,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0026] Example 1

[0027] The production method of low-nicotine tobacco leaves comprises the following steps:

[0028] S1, prepare an aqueous solution of auxin with a concentration of 20 mg / kg;

[0029] S2. After topping the LAK326 plants, spray the auxin (GA gibberellin) aqueous solution in step S1 on the topping area and the front and back sides of the tobacco leaves using a sprayer until the leaves drip naturally (about 200 mL per plant);

[0030] S3. After harvesting, low-nicotine tobacco leaves of LAK326 (nicotine content is below 0.1%) are obtained.

[0031] Example 2

[0032] A method for improving the availability of upper leaves of flue-cured tobacco, the steps comprising:

[0033] S1. The low-nicotine tobacco leaves in Example 1 are destemmed and cut into shreds to prepare low-nicotine tobacco shreds (LAK326);

[0034] S2, removing stems from high-nicotine upper tobacco leaves and cutting them into shreds to prepare high-nicotine upper tobacco shreds (K326);

[0035] S3. After evenly mixing the low-nicotine tobacco leaves and shredded tobacco and the high-nicotine upper tobacco leaves and shredded tobacco according to the proportions in Table 1, the mixture is made into cigarettes using a cigarette rolling machine. The total weight of the shredded tobacco in the cigarettes is 1.2 g.

[0036] Table 1

[0037] deal with Total weight of tobacco (g) Weight of tobacco of each type (g) Proportion of tobacco of various types T1 1.2 K326(1.2) K326(100％) T2 1.2 K326(0.96), LAK326(0.24) K326 (80%), LAK326 (20%) T3 1.2 K326(0.72), LAK326(0.48) K326 (60%), LAK326 (40%) T4 1.2 K326(0.48), LAK326(0.72) K326 (40%), LAK326 (60%) T5 1.2 K326(0.24), LAK326(0.96) K326 (20%), LAK326 (80%) T6 1.2 LAK326(1.2) LAK326 (100%)

[0038] The T1-T6 cigarettes prepared in Example 2 were quantitatively evaluated by smoking experts using a 9-point system. The results are shown in Table 2.

[0039] Table 2

[0040]

[0041]

[0042] As can be seen from Table 2, the aroma volume and concentration index scores decrease with the increase of LAK326 proportion, and the strength shows a downward trend overall. Overall, when K326 accounts for 80% and LAK326 accounts for 20%, the effect is the best, which can not only ensure the comfort level of sensory quality, but also reduce the alkaloid content of the cigarette to a certain extent.

[0043] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0044] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for producing low-nicotine tobacco leaves, characterized in that the steps include: The low-nicotine flue-cured tobacco plants are topped, and then auxin is sprayed on the topping area and the front and back sides of the tobacco leaves, and low-nicotine tobacco leaves are obtained after harvesting.

2. The method for producing low-nicotine tobacco leaves according to claim 1, characterized in that: The low-nicotine flue-cured tobacco varieties include LAK326.

3. The method for producing low-nicotine tobacco leaves according to claim 1, characterized in that: The concentration of the growth hormone is 20 mg / kg.

4. The method for producing low-nicotine tobacco leaves according to claim 1, characterized in that: The spraying amount of the auxin is such that water drips naturally from the leaves.

5. The method for producing low-nicotine tobacco leaves according to claim 1, characterized in that: The nicotine content of the low-nicotine tobacco leaves is below 0.1%.

6. A method for improving the availability of upper leaves of flue-cured tobacco, characterized in that the steps include: The low-nicotine tobacco leaf according to any one of claims 1 to 5 is prepared into shredded tobacco, which is then evenly mixed with shredded tobacco leaves of high-nicotine upper tobacco leaves to prepare cigarettes.

7. The method for improving the usability of upper leaves of flue-cured tobacco according to claim 6, characterized in that: The mass ratio of the shredded tobacco made from the low-nicotine tobacco leaves to the shredded tobacco made from the high-nicotine upper tobacco leaves is 0-1:0-1, and both are not 0.

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