Composite preservation method for morchella esculenta by adopting low-temperature ozone drying agent

Abstract

The invention relates to a composite preservation method for morchella esculenta by adopting a low-temperature ozone drying agent, which belongs to the field of preservation of morchella esculenta. The method comprises steps of carrying out pre-cooling treatment on the harvested morchella esculenta for 4-5 hours at the temperature of 3-5 DEG C, fumigating the precooled morchella esculenta in an ozone closed space with the concentration of 16 mg/m<3> to 19 mg/m<3> for 10 to 30 minutes, boxing the fumigated morchella esculenta and allochroic silicagel desiccant according to the weight ratio of (12-20): 1, and sealing a film and storing in an environment of 4 DEG C. The method has the advantages that under the condition that the appearance, smell and taste of the morchella esculenta are not affected, completeness and cleanness of morchella esculenta bodies are kept, cleaning, spraying and soaking of liquid are avoided, exogenous pollution is reduced, self enzyme activity is inhibited, and therefore the freshness degree of the morchella esculenta is kept, the preservation period is prolonged, and the method is a morchella esculenta fresh-keeping composite technology which is simple and convenient to operate and suitable for popularization.

Description

Technical field [0001] The present invention belongs to the preservation of sheep bacteria, and specifically involves a composite preservation method using a low-temperature ozone desiccant. Background technique [0002] The sheep belly is a rare meal. In recent years, the price of sheep bacteria has risen, and the drying can be exported, but it also destroyed the original flavor of the fresh sheep. Effective preservation technology can extend the sheep bacteria preservation period, which in turn can carry out long-distance transportation and sales. [0003] At present, there is less research on the preservation technology of the sheep. And other foods are not suitable. The preservation technology of the sheep bacterium is currently only spraying or soaking, chitosan coating film, high pressure static electricity, O 2 Co 2 Melody, 95% ethanol solution fumigation and ozone. Among them, the selection of preservatives is different, including the ratcarbiattomytine extract; the lacti...

AI Technical Summary

Problems solved by technology

[0004] Due to the porous structure of hickory chick, when spraying or soaking with preservatives such as chitosan coating, exogenous ATP, nisin, etc., the consumption is huge and the cost is high. Exogenous pollution

However, the high adhesion dose of the soaking method will cause preservative residues, which will endanger food safety. The spraying method is difficult to spray in place due to the structure of morels, which increases costs and manpower.

The raw materials of Dictyophora spinosa mycelium extract, Angelica dahurica volatile oil extract, Scutellaria baicalensis, rosemary, and propolis are expensive, and the cost of fresh-keeping morel mushrooms is too high, and it is not suitable for promotion

[0005] The use of ozone alone cannot completely guarantee that morels will not be infested by microorganisms during the packaging process after fumigation, and the equipment required for high-voltage static electricity is expensive, difficult to operate, and has no universal applicability

Therefore there is no suitable and effective hickory chick fresh-keeping technology at present

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