A modified atmosphere curing agent used in the process of tobacco leaf storage and alcoholization and its preparation method

Abstract

The invention provides an air curing agent used in tobacco leaf storing and alcoholizing processes. The air curing agent comprises a deoxidization insecticidal curing agent and a humidity controlled mildew proof curing agent which are respectively and independently packaged, wherein the two preparations are matched and used according to the proportion; the deoxidization insecticidal curing agent comprises a composite oxygen reduction agent, an airway constituted agent and a humectant; the humidity controlled mildew proof curing agent comprises sepiolite, calcium chloride, calcium oxide, mildew preventive and a water storage agent. The air curing agent has ideal deoxidization and humidity controlled effect; the oxygen content in the air is reduced to 2% within 15-30 days; the relative humidity in a storage space is controlled within the range of 55-65%; the dosage is reduced to 20-40% compared with that of the existing product; the dehumidification speed in a high-humidity environment is increased by 10-20%; and the hygroscopic capacity is increased by 20-30%. The invention also discloses a preparation method of the air curing agent.

Description

technical field [0001] The invention belongs to the technical field of tobacco storage, and relates to a modified atmosphere curing agent used in the storage and aging process of tobacco leaves and a preparation method thereof. Background technique [0002] At present, the sealed ultra-low oxygen storage (Ultra-lowoxygen, ULO) method is widely used in the fields of items that need to be stored, such as grain, vegetables, and tobacco. This storage method controls the oxygen in the storage environment below 2%, so that the respiratory activity of the stored items is inhibited, and the consumed nutrients are greatly reduced, so the nutritional content and quality of the items can be maintained. At the same time, the ultra-low oxygen environment can also inhibit and kill microorganisms and plant diseases and insect pests in the storage environment. Compared with the existing phosphine fumigation and insecticidal method, this method will not produce toxic substances during stora...

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Problems solved by technology

[0005] Above-mentioned two patent composition proportions are different, also can all reach the required oxygen content and the humidity requirement of tobacco leaf storage, but still have some deficiencies: (1) Oxygen reducing agent oxygen absorption reaction has agglomeration phenomenon, the deoxidation after agglomeration Oxygen and humectants need to be used in greater amounts to achieve the desired effect of reducing oxygen and moisturizing; (2) the above-mentioned air-conditioning curing agent uses diatomaceous earth and carbonized rice husk as an airway forming agent to construct a gas diffusion channel. to absorb oxygen and water vapor in the air

The hygroscopicity of diatomaceous earth is not strong enough, and the oxygen reduction and dehumidification speed is slow; (3) the above patent application only uses reduced iron powder as the oxygen reduction agent, and the reaction efficiency is not high. To a certain extent, it prevents the reaction of oxygen with the iron powder inside the air-conditioning curing agent, and a large amount of iron powder is required to meet the oxygen reduction requirement; (4) the above-mentioned patent uses perlite as the water-absorbing agent in the humidity-controlling curing agent, because perlite The water absorption is average, and the phenomenon of leakage of moisture control curing agent is often encountered in the actual use process

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