CO2 packaged low-temperature low-dose irradiation refreshing method for edible mushrooms

Abstract

The invention discloses a CO2 packaged low-temperature low-dose irradiation refreshing method for edible mushrooms, comprising the following steps of: step I, deairing an edible mushroom film and charging CO2 for packaging; step II, precooling the edible mushroom packaged in the step I to be 0-4 DEG C; and step III, adopting 60Co r rays or 5-10MeV electron beam rays to perform irradiation to the edible mushroom in the step II, wherein the irradiation absorbed dose is 0.1-1.0kGy, and the inequality of irradiation dose is less than 1.25. In the invention, the comprehensive irradiation refreshing method maintaining the original color, fragrance, taste and state of the edible mushrooms is adopted, when the irradiated edible mushrooms are stored at normal temperature (10-25 DEG C), the original color, fragrance, taste and state are maintained for 4 days, and when the irradiated edible mushrooms are stored at 0-4 DEG C, the original color, fragrance, taste and state are maintained for 14 days. The packaging filled with CO2 is adopted, CO2 can effectively inhibit breathing of the edible mushrooms, irradiation is performed when the edible mushrooms are precooled to be 0-4 DEG C, at 0-4 DEG C, the breathing of the edible mushrooms can be reduced, growth reproduction of harmful microorganisms polluting the edible mushrooms is inhibited, and negative reaction of edible mushrooms, caused by irradiation, at the temperature can be reduced.

Description

technical field [0001] The invention relates to a radiation processing method in the application field of atomic energy science and technology, in particular to an edible fungus CO 2 The invention relates to a fresh-keeping method for low-temperature and low-dose irradiation of packaging. Background technique [0002] Edible fungus is a kind of higher fungus with fresh taste and tender quality that has sprung up in recent years. It has high protein content, has various amino acids necessary for human body, and is a kind of high-nutrition food that hardly contains saturated fatty acids. After in-depth research, it is found that edible fungi contain fungal polysaccharides, triterpenoids, polypeptides, adenine nucleotides, sterols, lactones and other components, which have extremely good health care functions for the human body. Regular consumption can prevent hyperlipidemia, Cardiovascular diseases and functional degenerative diseases are a kind of excellent health food. [...

AI Technical Summary

Problems solved by technology

It can be seen that the existing edible mushroom irradiation fresh-keeping technology uses polymer materials, such as polyethylene non-modified atmosphere packaging, simple irradiation at room temperature, and the absorbed dose is relatively high, generally 0.8kGy, the highest is 2kGy, and the lowest is 0.5kGy. After irradiation, it needs to be stored in a low-temperature warehouse at 4°C. The fresh-keeping period is 7-10 days. The irradiation dose is not uniform. The minimum effective dose and the highest tolerated dose of irradiation have not been determined; Fragrance, taste, state

Therefore, the radiation effect is poor and unstable

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