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A curing method for improving protein degradation rate of tobacco leaves

A curing method and technology of degradation rate, applied in the field of flue-cured tobacco curing, can solve the problem that Maillard reaction cannot proceed well, and achieve the effects of prolonging the degradation time of high enzymatic activity, ensuring supply and improving the degradation rate

Active Publication Date: 2019-01-04
YUNNAN ACAD OF TOBACCO AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the protein content of tobacco leaves is often negatively correlated with the sugar content, and high protein content also affects the Maillard reaction.

Method used

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  • A curing method for improving protein degradation rate of tobacco leaves
  • A curing method for improving protein degradation rate of tobacco leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A roasting method for improving the degradation rate of tobacco leaf protein, comprising the following steps:

[0034] A. Harvesting: Harvesting fresh tobacco leaves of the K326 variety that are suitable for ripening.

[0035] B. Tobacco weaving: same rod, same quality, same part, appropriate density;

[0036] C. Furnace loading: put the tobacco leaves collected in step A into the barn, with the same quality as the furnace, and fill them all up;

[0037] D. Yellowing: including early yellowing, mid-yellowing and late yellowing. In the early stage of yellowing, the dry bulb temperature is raised from 27°C to 34°C at a heating rate of 1.5°C / h, and the wet bulb temperature is adjusted from 26°C. To 33°C, stabilize the dry and wet bulb temperatures, and bake for 16 hours; then enter the mid-yellowing period, with a heating rate of 1.5°C / 1~2h, raise the dry bulb temperature to 38°C, and adjust the wet bulb temperature to 35°C (the The endopeptidase activity for degrading p...

Embodiment 2

[0041] A roasting method for improving the degradation rate of tobacco leaf protein, comprising the following steps:

[0042] A. Harvesting: Harvesting fresh tobacco leaves of the K326 variety that are suitable for ripening.

[0043] B. Tobacco weaving: same rod, same quality, same part, appropriate density;

[0044] C. Furnace loading: put the tobacco leaves collected in step A into the barn, with the same quality as the furnace, and fill them all up;

[0045] D. Yellowing: including early yellowing, middle yellowing and late yellowing. In the early yellowing, the dry bulb temperature is raised from 28°C to 36°C at a heating rate of 1.5°C / h, and the wet bulb temperature is adjusted from 27°C. to 34°C, stabilize the dry and wet bulb temperatures, and bake for 18 hours; then enter the mid-yellowing period, raise the dry bulb temperature to 38°C at a heating rate of 1.5°C / 2h, and adjust the wet bulb temperature to 35°C (the temperature drops The endopeptidase activity of prote...

Embodiment 3

[0049] A roasting method for improving the degradation rate of tobacco leaf protein, comprising the following steps:

[0050] A, harvesting: harvest suitable ripe K326 variety fresh tobacco leaves; described fresh tobacco leaves are leaves in the middle of the tobacco plant; described suitable ripeness is specifically shown as light yellow leaf color of tobacco leaves, main veins are all white and shiny, and branch veins turn white, Leaf tips and leaf margins roll down, leaf surfaces are wrinkled, with mature spots, and most of the hairs fall off;

[0051] B. Rod weaving and furnace loading: Weaving the harvested tobacco leaves into the barn and waiting for baking; the principle of weaving the rods is that the same rods are of the same quality, the same position, and the density is appropriate; The principle of furnace loading is that the same furnace is of the same quality, and the furnace is fully filled; the smoke density of the barn mentioned above is 42 kg / m 3 , smoke to...

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Abstract

The invention discloses a curing method for improving the protein degradation rate of tobacco leaves. The curing method comprises the following steps: A. harvesting; B, weaving a rod and charging thatfurnace; C, flue-curing: the flue-cured tobacco leaves are flue-cured after the oven is charged, and the flue-cured tobacco leaves can be obtained through the yellowing period, the color fixing period and the dry rib period. The method of the invention has extremely great significance for ensuring the high-quality raw material supply of the cigarette industry by regulating the curing time, optimizing the curing process, improving the protein degradation rate of the tobacco leaves, regulating the protein content, and improving the quality of the bulk curing tobacco leaves.

Description

technical field [0001] The invention belongs to the technical field of flue-cured tobacco curing, and in particular relates to a curing method for improving the protein degradation rate of tobacco leaves. Background technique [0002] Protein is one of the important components of tobacco and is closely related to the quality of tobacco. The degradation of proteins in plants is generally believed to be firstly acted by endopeptidases, which hydrolyze proteins into polypeptides, and then hydrolyze polypeptides into amino acids by exopeptidases, among which exopeptidases are divided into Aminopeptidase and Carboxypeptidase. During the roasting process, the protein can be degraded, and the amino acids produced can produce aroma substances that are beneficial to the quality of tobacco by reacting with reducing sugars or directly degrading them. If the protein content of the tobacco leaves is high after roasting, the intensity of the smoke will be too high, the aroma and taste w...

Claims

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Application Information

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IPC IPC(8): A24B3/10
CPCA24B3/10
Inventor 陈颐张笑黄维邹聪明吴文琪孙书斌赵高坤胡彬彬杨雪彪李军营杨世波喻曦苏家恩杨威盖晓彤
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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