Disinsection mold-proof method with no effect on tobacco mellowing

Abstract

The invention belongs to the fine chemical field and especially provides a pest-killing and mildew-resistent method during tobacco leaf without affecting tobacco leaf alcoholization. The invention is characterized by adopting two steps to control the storing environment during tobacco leaf alcoholization process: the first step is sealing and packing tobacco leaves with plastic membranes, decreasing the volume percent of oxygen concentration to 0.01-4% with an oxygen-absorbing material or nitrogen, corbon dioxide or inert gas and sealing for 10-400 days; the second step is supplying oxygen or air into the sealing bag after completely killing pests and mould in the tobacco leaves to increase the volume percent of oxygen concentration in the bag to 4-40%, and storing for 10-700 days. the invention has advantages of completely killing pests and mould in the tobacco leaves without affecting tobacco leaf alcoholization, a good tobacco leaf alcoholization effect and a thorough pest-killing and mould-resistant effect.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular provides a method for killing insects and preventing mildew that does not affect the alcoholization of tobacco leaves. Background technique [0002] Before tobacco leaves are processed into finished cigarettes, they must be mellowed to remove the green and miscellaneous taste of tobacco leaves and increase the quality of tobacco leaves. However, during the alcoholization process of tobacco leaves, the tobacco leaves are prone to mildew and insect growth, especially in the humid south. At present, the most commonly used method for killing insects on tobacco leaves is fumigation with phosphine gas. toxic phosphine residues. Another method is the simple oxygen reduction method, which is to reduce the oxygen concentration in the tobacco leaf storage environment to about 1%, and then maintain it all the time. This method has a good effect of killing insects and mildew, but it is harmf...

AI Technical Summary

Problems solved by technology

However, during the alcoholization process of tobacco leaves, tobacco leaves are prone to mildew and insect growth, especially in the humid south

At present, the most commonly used method for killing insects on tobacco leaves is fumigation with phosphine gas. Toxic phosphine residues

Another method is the simple oxygen reduction method, which is to reduce the oxygen concentration in the tobacco leaf storage environment to about 1%, and then maintain it all the time. This method has a good effect of killing insects and mildew, but it is harmful to some indicators of the alcoholization process of tobacco leaves. certain negative impact