Modified atmosphere preservation method of marine brassica chinensis L.

Abstract

The invention discloses a modified atmosphere preservation method of marine brassica chinensis L. The modified atmosphere preservation method comprises the following steps in sequence: 1) precooling; 2) preserving by adopting preservation pouches; 3) configuring gas parameter values in the preservation pouches: utilizing a high-precision gas distribution instrument to input gases O2, CO2 and N2 into the preservation pouches with brassica chinensis L., wherein the parameter values of the gases are as follows: the concentration of O2 is 2-15%, the concentration of CO2 is 8-15% and the rest gas is N2; 4) putting the preservation pouches in a cold store for storage: controlling the temperature of the cold storage to be 0-5 DEG C and the relative humidity to be 60-90%; and 5) finishing the operation. The modified atmosphere preservation method has the following beneficial effects: through precooling, packaging with the preservation pouches, configuration of the gases O2, CO2 and N2 in the preservation pouches and control of the key processes such as temperature and humidity, the storage period of brassica chinensis L. is lengthened to 45 days; more than 95% of brassica chinensis L. does not suffer from quality deterioration such as water loss of leaf surfaces and even rot and maintains good edibility; and the method is simple, is lower in cost, avoids chemical residues during storage and conforms to the international requirements.

Description

technical field [0001] The invention relates to a fresh-keeping method of Shanghai green rapeseed, in particular to an air-modified fresh-keeping method of Shanghai green rapeseed used in ships. Background technique [0002] Brassica chinensis L., a Brassica chinensis L., belongs to Brassicaceae, a subspecies of Brassica cabbage, with oval leaves, thick petioles, turquoise, waist-shaped plant, sweet taste and good taste. A variety of common cabbage with leaves as the product, native to China, heat-resistant, cold-resistant, moisture-resistant, and disease-resistant, rich in protein, carbohydrates, crude fiber, and multivitamins, which can provide the minerals needed by the human body , regular consumption has a good effect on the maintenance of skin and eyes, and has always been loved by the majority of crew members. [0003] Because the leaves of Shanghai green rape are bright in color and the specific surface area is large, the fresh-keeping conditions and shelf life requ...

AI Technical Summary

Problems solved by technology

The storage and fresh-keeping method of Shanghai green rapeseed in the above-mentioned prior art cannot meet the storage requirements during the marine use period of more than 30 days, which directly affects the crew's food supply requirements