Method for improving tobacco leaf quality on upper part of flue-cured tobacco by applying steam explosion technology

Abstract

The method discloses a method for improving tobacco leaf quality on an upper part of flue-cured tobacco by applying steam explosion technology, and relates to the technical field of tobacco processing. The method comprises the following steps of: performing steam explosion on the upper tobacco leaf of flue-cured tobacco, wherein the working medium for steam explosion is saturated steam, the steam explosion time is less than 0.01 second, the steam pressure is between 0.4 and 0.8 MPa, and the pressure preserving time is between 10 and 60 seconds; drying the upper tobacco leaf subjected to steam explosion, and reducing the moisture to 10-25 percent; and making the dried upper tobacco leaf enter a shredding and expanding process, and using the upper tobacco leaf in a cigarette formula. The method for improving the tobacco leaf quality effectively reduces the total plant alkaloid content in the tobacco leaf on the upper part of flue-cured tobacco, increases the content of reducing sugar, lightens the irritation and strength of the upper tobacco leaf, increases the aroma, effectively improves the combustibility of the tobacco leaf, makes the ratio of the upper tobacco leaf of the flue-cured tobacco to the cigarette formula increased from 10 percent to 15 percent, and effectively improves the utilization rate of the tobacco leaf on the upper part.

Description

technical field [0001] The invention relates to a method for treating upper tobacco leaves of flue-cured tobacco by applying steam explosion technology to improve its quality, and belongs to the technical field of tobacco processing. Background technique [0002] Steam explosion technology was first invented by Mason and used in the pulping process, known as the Masonite method. Subsequently, on the basis of this process, people have carried out a lot of research and improvement on steam explosion pulping, resulting in the Stake and Kokta methods and some other important explosion processes, such as Iotech and Siropulper. At present, steam explosion technology has been successfully applied in the fields of sugar production, building materials, animal feed processing, fermentation agent and lignocellulosic raw material pretreatment. For example, the enzymatic hydrolysis rate of straw after steam explosion can reach 80% to 90%, which is 60% to 70% higher than that of straw wi...

AI Technical Summary

Problems solved by technology

[0004] The upper tobacco leaves of flue-cured tobacco are narrower and thicker, darker in color, lower in oil content, denser in tobacco leaf tissue, high in nicotine content, slow in burning, low in smoking, average in filling, strong in flavor, heavy in miscellaneous gases, Highly irritating; it is used in a relatively low proportion in cigarette formulations, and generally will not be fully utilized as the main raw material