Tobacco leaf modified-atmosphere curing method

Abstract

The invention provides a tobacco leaf modified-atmosphere curing method and belongs to the technical field of sealed tobacco leaf storage. Tobacco leaves are sealed in a film cover, and the film covercomprises a sucking hole and a vent valve. Negative pressure is formed by sucking air from the film cover through the sucking hole, and the sucking hole is sealed to obtain the sealed film cover. Thesealed film cover is filled with nitrogen through the vent valve until the concentration of oxygen in the sealed fil cover is 2% or below, and the vent valve is turned off. An atmosphere modifying agent is put in the sealed film cover to complete modified-atmosphere tobacco leaf curing. Nitrogen-filled atmosphere modification and atmosphere modification by utilizing the atmosphere modifying agentare organically integrated to form a comprehensive atmosphere modification technology integrating nitrogen-filled quick oxygen decrease and atmosphere modifying agent added long-acting oxygen-consuming humidity control, and the problem is avoided that the modifying agent added atmosphere modifying agent in the prior art is difficult to control in humidity and likely mildews.

Description

technical field [0001] The invention relates to the technical field of sealed storage of tobacco leaves, in particular to a tobacco leaf conditioning and maintenance method. Background technique [0002] Tobacco is one of the important economic crops in our country and an important processing raw material for the cigarette industry, with huge economic value. After the tobacco leaves are harvested and baked, in order to remove the green miscellaneous gas of the tobacco leaves, reduce the irritation of the taste, improve the aroma quality of the smoke, and reconcile the chemical components inside the tobacco leaves, it takes about 2 years of storage and aging time. According to incomplete statistics, about 80 million tons (1 load=50kg) of flue-cured tobacco leaves need to be stored in my country every year. However, because tobacco leaves are rich in nutrients such as proteins, lipids, and sugars, they are prone to insects during storage. In addition, the humidity of the sto...

AI Technical Summary

Problems solved by technology

The air-conditioning agent reaction in the prior art is an exothermic reaction. During the oxygen-reducing reaction process, the air-conditioning agent will release heat, causing the water in the air-conditioning agent to be heated to form water vapor to evaporate, especially when a large number of air-conditioning agents react intensively, the heat will accumulate rapidly. , the temperature rises rapidly, and the water vapor intensifies the evaporation, resulting in a rapid and excessive increase in the relative humidity of the storage space, resulting in condensation, and in severe cases, runoff will form, wet the stored items, and cause mildew problems; the nitrogen-filled air conditioning technology itself does not have The role of humidity control, the tobacco leaves are kept in a space enclosed by a sealed film for a long time, the humidity control is not good, and it is not convenient for daily unpacking inspection, and there is also a risk of mildew