Grape freshness keeping method

Abstract

A grape freshness keeping method includes the following steps that 1, the opening of a freshness protection package is placed upwards, and two layers of absorbent paper are arranged at the bottom of the freshness protection package; 2, grapes are placed on the absorbent paper in the freshness protection package; 3, a layer of absorbent paper and a layer of freshness protection paper are sequentially placed on the uppermost side of the grapes, one side of the freshness protection paper is hydrophobic material and faces upward, and the other side of the freshness protection paper faces downward and is provided with preservatives; 4, the opening of the freshness protection package is sealed. Through the method, the surfaces of the grapes can be protected against moisture condensation and bleaching, definite humidity and definite concentration of the preservatives can be maintained in the freshness protection package, and the grapes are not prone to water loss and are kept fresh. Through the method, the pre-cooling step is omitted before the grapes are stored in a refrigeration house, and grape loss caused by complex steps in the grape storage process is prevented. In addition, operation steps are simplified, cost is saved, the relative humidity in the freshness protection package is high, stem protecting and green preserving are achieved, and bleaching of the preservatives is effectively reduced.

Description

technical field [0001] The invention relates to a method, in particular to a grape preservation method. Background technique [0002] Grapes are a staple fruit popular with consumers. The traditional main planting areas in my country are concentrated in the northern regions. Since the 1980s, with the rapid progress of facility cultivation techniques such as greenhouse planting, the grape industry has sprung up in southern my country, especially in the Yangtze River Delta region, and has become a growing area. The fastest and most profitable fruit industry, in 2014, the grape cultivation area in Zhejiang Province alone reached 410,000 mu, of which the penetration rate of protected grapes reached 65%. [0003] Southern facility grapes have the characteristics of high temperature, high humidity, low soluble solids, high water content, susceptibility to disease, concentrated maturity, and short shelf life. With the continuous expansion of the industrial scale, southern facility g...

AI Technical Summary

Problems solved by technology

In actual production, fruit growers need to fully pre-cool the open-packed grapes before tying them one by one, adding preservatives and stacking them for refrigeration. "Storage" discoloration limits the popularization of fresh-keeping technology

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