Regulation and control method for fruit vegetable mixed controlled atmosphere storage for ocean vessels

Abstract

The invention discloses a regulation and control method for fruit vegetable mixed controlled atmosphere storage for ocean vessels, and belongs to the technical field of fruit and vegetable fresh-keeping. According to the regulation and control method disclosed by the invention, regulation and control for fruit vegetable mixed controlled atmosphere storage is realized through controlled atmosphere storage room preparation, fruit vegetable selection, precooling and stacking; many typical fruit vegetables are picked, selected, pre-cooled to 9-11 DEG C in a vacuum pre-cooling machine for about 12-24h, and then orderly stacked in the controlled atmosphere storage room; controlled atmosphere fresh-keeping is carried out through the different ratios of O2, CO2, N2 and Ar. The regulation and control method disclosed by the invention is capable of still keeping good colours and flavours, and high peroxidase, superoxide dismutase, catalase and cellulase activities while prolonging the storage period of mixed storage for the many typical fruit vegetables to more than 50 days, effectively reducing the accumulation of harmful substances such as superoxide anion free radicals, hydrogen peroxide and malonaldehyde, achieving a Vc retention rate of 80-90%, and controlling a weight loss ratio to be below 8%. The regulation and control method disclosed by the invention is capable of enriching the varieties of the controlled atmosphere storage and increasing the space utilization rate, and great in practical popularization significance for the ocean vessel industry.

Description

technical field [0001] The invention relates to a fresh-keeping method for fruits and vegetables, in particular to a control method for controlled-atmosphere storage of fruits and vegetables on ocean-going ships, and belongs to the technical field of fresh-keeping fruits and vegetables. Background technique [0002] Fruit vegetables are edible vegetables with fruits and tender large seeds. According to different fruit structures or botanical divisions, they can be divided into three types: solanaceae, melons and beans. Most of the fruits and vegetables grow in high temperature seasons, so they are not suitable for low temperature (such as 0 ℃) storage, and are generally difficult to store. Respiration-climbing vegetables refer to the fact that during the growth and maturity of vegetables, the respiration intensity suddenly increases, reaches a peak and then decreases rapidly. The brief introduction of some typical fruits and vegetables is as follows. [0003] green pepper,...

AI Technical Summary

Problems solved by technology

[0008] At present, there are few studies on the mixed storage of vegetables and controlled atmosphere freshness. There are certain problems in the mixed storage of multiple varieties: ① After picking fruits and vegetables, a certain amount of ethylene (ripening agent) will be produced, especially the mixed storage of various fruits and vegetables will greatly shorten the ② It is easy to cause cross-infection of germs, making vegetables and fruits very easy to rot and deteriorate; ③ Various fruits and vegetables are different in terms of origin, variety, growth environment conditions, and cultivation management. Humidity is also different, mixed storage will affect the storage period of some varieties of fruits and vegetables

Traditional controlled atmosphere preservation is mostly used for the preservation of a single fruit and vegetable, and there are fewer varieties of vegetables that can be stored in a limited space