Method for preventing excessive browning reaction due to improper tobacco leaf curing

A browning reaction, tobacco leaf technology, applied in the direction of tobacco, application, treatment of tobacco, etc., to achieve the effect of inhibiting the browning reaction

Active Publication Date: 2015-01-07
SHANDONG LINYI TOBACCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many studies have found that some substances have the effect of inhibiting the activity of polyphenol oxidase or have a synergistic effect, but the use of such substances to inhibit the browning reaction of tobacco leaves has not been reported

Method used

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  • Method for preventing excessive browning reaction due to improper tobacco leaf curing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Preparation of walnut green husk extract: after cleaning fresh walnut green husk, extract according to the ratio of the weight of walnut green husk to the volume of ethanol or food-grade acetone as 1:200, and use ultrasonic-assisted extraction for 2 hours. Afterwards, filter, collect the filtrate, carry out rotary evaporation, concentrate, and then put it into a vacuum freeze dryer, and obtain a solid powder extract after 8 hours. The extract is dissolved in water to a concentration of 0.5% by mass before use.

[0021] Tobacco leaf treatment method: put the solution in a rectangular water tank, immerse the harvested fresh tobacco leaves in the water tank for 3-5 minutes, take it out, drain the open water, let it dry for 0.5-1 hour, then transfer it to the barn for conventional baking and extraordinary Regular baking. The control was soaked in clean water, and the follow-up treatment was consistent with that of the treatment group. Conventional baking is carried out in...

Embodiment 2

[0023] Preparation of walnut green husk extract: after cleaning fresh walnut green husk, extract according to the ratio of walnut green husk weight to ethanol or food-grade acetone volume of 1:30, and use ultrasonic-assisted extraction for 0.5 h. Afterwards, filter, collect the filtrate, carry out rotary evaporation, concentrate, and then put it into a vacuum freeze dryer, and obtain a solid powder extract after 8 hours. The extract was dissolved in water to a concentration of 3.0% by mass before use.

[0024] Tobacco leaf processing method is the same as embodiment 1.

Embodiment 3

[0026] Preparation of walnut shell extract: extract according to the ratio of walnut shell weight to ethanol or food-grade acetone volume of 1:100, and use ultrasonic-assisted extraction for 3 hours. Afterwards, filter, collect the filtrate, carry out rotary evaporation, concentrate, and then put it into a vacuum freeze dryer, and obtain a solid powder extract after 8 hours. The extract is dissolved in water to a concentration of 1.0% by mass before use.

[0027] Tobacco leaf processing method is the same as embodiment 1.

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Abstract

The invention discloses a method for preventing excessive browning reaction due to improper tobacco leaf curing and belongs to the technical field of cigarette manufacturing. The method for preventing the excessive browning reaction due to the improper tobacco leaf curing includes that soaking tobacco leaves after harvesting and before preparing, wherein the soaking method includes that flatly paving the tobacco leaves in a rectangular water tank full of walnut waste extract and synergist solution and soaking for 3 to 5 minutes. The soaking method is capable of inhibiting the activity of polyphenol oxidase (PPO), reducing the browning reaction and improving the tobacco leaf curing effect, and the walnut waste is walnut green husk or walnut shell. The tobacco leaf browning reaction can be effectively inhibited through combining the walnut waste extract with the synergist (kojic acid and ferulic acid), and the luminous yellow tobacco leaf proportion is improved by 5-20%.

Description

technical field [0001] The invention relates to the technical field of cigarette manufacture, in particular to a method for preventing excessive browning reaction caused by improper curing of tobacco leaves. Background technique [0002] Improper curing of tobacco leaves can easily cause excessive enzymatic browning reaction, which can change the content of polyphenols in tobacco leaves and reduce the sensory quality of tobacco leaves. The content of polyphenolic compounds is consistent with the grade of tobacco leaves, that is, the content of polyphenols in high-grade tobacco leaves is high. At present, there are many studies on the content and types of polyphenols in tobacco leaves, but how to control the browning reaction in the brewing process, control the baking environment conditions to prevent the increase of polyphenol oxidase activity, and retain the pertinence of phenolic substances content The technology has not been reported yet, and there is an urgent need to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B15/26A24B15/18
CPCA24B15/18A24B15/26
Inventor 苏建东傅茂润杨举田代红飞张彦东曲清莉谭效磊王梅勋田雷宗浩武博徐硕王丽丽
Owner SHANDONG LINYI TOBACCO
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