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Application of Bacillus subtilis in degrading pectin in tobacco products

A technology of bacillus subtilis and tobacco products, which is applied in the application field of bacillus subtilis xp strain in degrading pectin in tobacco products, can solve the problems of adverse effects on tobacco safety and incomplete combustion of tobacco leaves, and achieve good application value and The effect of application prospect, reduction of pectin content, and simple operation process

Active Publication Date: 2020-10-30
CHINA TOBACCO HENAN IND
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the smoking process of cigarettes, the pectin in the tobacco leaves will cause incomplete combustion of the tobacco leaves and produce methanol, which is further oxidized into formaldehyde and formic acid, which is the main factor for the irritation of smoke and is also detrimental to the safety of tobacco. influences

Method used

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  • Application of Bacillus subtilis in degrading pectin in tobacco products
  • Application of Bacillus subtilis in degrading pectin in tobacco products

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Experimental program
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Embodiment

[0024] In order to use the Bacillus subtilis xp strain to degrade pectin in tobacco products, it is first necessary to properly amplify and cultivate the strain, and prepare it to contain a certain amount of active bacterial agent before it can be used. The specific preparation method of the bacterial agent is as follows.

[0025] (1) Strain activation, using an inoculation loop to pick up the strains on the slant medium (the formula is the same as that of LB liquid medium, only add 15g / L agar powder), place them in LB liquid medium for suspension culture, and incubate at 30°C for 12 hours Activation of bacteria;

[0026] (2) Strain expansion, transfer the bacterial liquid after the activation of the strain in step (1) to LB liquid culture medium, and cultivate it on a shaker at 35°C until OD 600 =3.5 or so, it can be used as bacterial agent for degrading tobacco products after being evenly suspended.

[0027] When the above-mentioned bacterial agent is specifically used to d...

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Abstract

The invention belongs to the technical field of tobacco preparation, and specifically relates to an application of bacillus subtilis xp strain in degrading pectin in tobacco products. The Bacillus subtilis is a Bacillus subtilis xp strain, which is now preserved in the China Center for Type Culture Collection, with a preservation number of CCTCC No: M 2011452; the strain is used to reduce the pectin content in tobacco products; when applied, subtilis The Bacillus xp strain was prepared as an inoculum, which was evenly sprayed on the surface of tobacco products at a mass ratio of 1.0% of tobacco products, and then stored and alcoholized for 30-40 days at 30-37°C and 55-65% humidity. Through the selection of specific bacillus subtilis strains, the present invention proves that it can effectively reduce the pectin content in tobacco products, improve the grade of tobacco, and accelerate the aging process of tobacco leaves while ensuring the aging effect.

Description

technical field [0001] The invention belongs to the technical field of tobacco preparation, and specifically relates to an application of bacillus subtilis xp strain in degrading pectin in tobacco products. Background technique [0002] Bacillus subtilis is a kind of Bacillus genus, which is widely distributed in soil and decayed organic matter, and is easy to reproduce in subtilis juice. The surface of its colony is rough and opaque, stained white or yellowish, and can use protein, various sugars and starch to decompose tryptophan to form indole, which is widely used in genetic research. In addition, Bacillus subtilis itself can synthesize enzymes such as α-amylase, neutral protease, lipase, cellulase, etc., and has good application prospects in degrading complex macromolecular compounds. Therefore, Bacillus subtilis has gradually become a A hotspot of attention and research. [0003] Tobacco leaf fermentation is also called tobacco leaf alcoholization. Its essence is the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20A24B15/20C12R1/125
CPCA24B15/20C12N1/205C12R2001/125
Inventor 杨宗灿张展马宇平陈芝飞于建春彭玉富周浩郝辉聂聪
Owner CHINA TOBACCO HENAN IND
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