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Method for reducing nitrogen and increasing sugar of upper leaves

A nitrogen and sugar reduction technology, applied in the fields of tobacco, food science, and tobacco preparation, can solve the problems that the amount of aroma components cannot be directly controlled, the quality of tobacco leaves is different, and the production efficiency of tobacco leaves cannot be guaranteed.

Active Publication Date: 2021-09-10
HUBEI CHINA TOBACCO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main method of adding the method is to spray the feed liquid on the flue-cured tobacco leaves for feeding, thereby increasing the aroma components of the tobacco leaves. Since the absorption speed and efficiency of the feed liquid by the tobacco leaves cannot be controlled, this method has no effect on the aroma components inside the tobacco leaves. The quantity cannot be directly controlled, resulting in different quality of tobacco leaves, and the production efficiency of tobacco leaves cannot be guaranteed

Method used

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  • Method for reducing nitrogen and increasing sugar of upper leaves
  • Method for reducing nitrogen and increasing sugar of upper leaves
  • Method for reducing nitrogen and increasing sugar of upper leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for lowering nitrogen and increasing sugar in upper leaves, specifically as follows:

[0038] S1. Harvesting with stems: 4 tobacco leaves in the upper part of the field, 90% of the third leaf position turns yellow, the main vein turns white and shiny, the angle between the stem and leaf is 55°, the tip and edge of the leaf are slightly curled, and the distance from the first leaf position ( Counting from bottom to top) at 9cm, cut and harvest with stems;

[0039] S2, withering in the airing room: the upper leaves cut with stems are taken as a group of 30 plants, and the poles are weaved, and put into the airing room after weaving the poles to dry for 3 days, so that the tobacco leaves lose water and wither;

[0040]S3. Mixed solution injection: inject the prepared mixed solution into the dried stems. The mixed solution contains glucose, potassium carbonate and papain, the contents of which are respectively 5%, 3% and 0.1% of the total mass, and the balance is ...

Embodiment 2

[0046] A method for lowering nitrogen and increasing sugar in upper leaves, specifically as follows:

[0047] S1. Harvesting with stems: 5 tobacco leaves in the upper part of the field, 90% of the third leaf position turns yellow, the main vein turns white and shiny, the angle between the stem and leaf is 60°, the tip and edge of the leaf are slightly curled, and the distance from the first leaf position ( Counting from bottom to top) at 10cm, cut with stems;

[0048] S2, withering in the airing room: the upper leaves with stems cut and collected are taken as a group of 30 plants, and the poles are weaved, and put into the airing room after weaving the poles to dry for 4 days, so that the tobacco leaves are dehydrated and withered;

[0049] S3. Mixed solution injection: inject the prepared mixed solution into the dried stems. The mixed solution contains sucrose, potassium carbonate and papain, the contents of which are respectively 8%, 5% and 0.3% of the total mass, and the b...

Embodiment 3

[0055] A method for lowering nitrogen and increasing sugar in upper leaves, specifically as follows:

[0056] S1. Harvesting with stems: 6 tobacco leaves in the upper part of the field, 90% of the third leaf position turns yellow, the main vein turns white and shiny, the angle between the stem and leaf is 65°, the tip and edge of the leaf are slightly curled, and the distance from the first leaf position ( Counting from bottom to top) at 11cm, cut with stems;

[0057] S2, withering in the airing room: the upper leaves with the stems cut and collected are taken as a group of 30 plants, and the poles are weaved, and put into the airing room after weaving the poles to dry for 5 days, so that the tobacco leaves are dehydrated and withered;

[0058] S3. Mixed solution injection: inject the prepared mixed solution into the dried stems. The mixed solution contains starch, potassium carbonate and papain, the contents of which are respectively 10%, 6% and 0.5% of the total mass, and t...

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Abstract

The invention discloses a method for reducing nitrogen and increasing sugar of upper leaves, which comprises the following steps: S1, harvesting with stems: cutting and harvesting with stems below a first leaf position at the top end; S2, withering in an air-curing room, weaving the upper leaves cut and picked with stems in the step S1 into rods, and airing the upper leaves in the air-curing room after weaving the rods; S3, injecting a mixed solution, and injecting the mixed solution into the stalks aired in the step S2; S4, drying: feeding the stems injected in the step S3 into a curing barn to be cured, including following three processes of S41, performing yellowing period regulation and control; S42, performing color fixation regulation and control; and S43, performing tendon drying control. According to the method, the tobacco leaves are harvested with stems, then the mixed solution is injected into the stems, and the purpose of reducing nitrogen and increasing sugar in the tobacco leaves is achieved in cooperation with regulation and control of the baking temperature and time, so that the nitrogen-containing compound content of the tobacco leaves is reduced, the sugar content is increased, the chemical component coordination is improved, and the total amount of aroma substances is remarkably increased; the aroma quality of the upper tobacco leaves is improved, the aroma amount and sweetness are increased, and the irritation is reduced.

Description

[0001] A method for lowering nitrogen and increasing sugar in upper leaves. technical field [0002] The invention relates to the technical field of tobacco curing, in particular to a method for reducing nitrogen and increasing sugar in upper leaves. Background technique [0003] Curing of flue-cured tobacco is an important link in the production of tobacco leaves. Fresh tobacco leaves must be roasted to reflect their own commercial value. In the popularization and application in recent years, it has been found that due to the high water content and low dry matter content of the upper tobacco leaves and the high water content and high dry matter content of the middle tobacco leaves, the water loss rate and content conversion rate of the middle and upper tobacco leaves during curing The mismatch will lead to the imbalance of chemical components inside the tobacco leaves, which will reduce the quality of the tobacco leaves. [0004] The nitrogen content in tobacco leaves also...

Claims

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Application Information

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IPC IPC(8): A24B3/12A24B3/10A24B3/04A24B15/20A24B9/00
CPCA24B3/12A24B3/10A24B3/04A24B15/20A24B9/00
Inventor 刘峰峰何结望李颖雪包军石刚刘剑峰
Owner HUBEI CHINA TOBACCO IND
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