Blueberry fresh fruit efficient fresh-keeping method

Abstract

The invention discloses a safe and efficient preservation method for the fresh fruits of blueberries. Choice fruits are selected from the collected blueberries, sterilized and disinfected by ozone water; the heat in fields of the choice fruits is pumped by a vacuum and precooling equipment within a plurality of hours; after being packed by film bags, the choice fruits are stored in a refrigeratory of which the environmental temperature is 0.5-2 DEG C and the relative humidity is 90 to 95 percent. On the basis of no pollution, the method can prolong the preservation period of the blueberries in summer to about 20 days, thus guaranteeing the marketability of the fresh fruits of the blueberries, and solving the problems of short-term storage and long-distance transportation of the fruits.

Description

Technical field: [0001] The invention relates to the field of storage and preservation of agricultural products, in particular to a method for safe and efficient preservation of fresh blueberries. Background technique: [0002] Blueberries have extremely high edible value. The flesh is delicate, unique flavor, rich in nutrition, sweet and sour, and the edible rate is 100%. Blueberry is the most abundant type of bilberry, except for the conventional sugar, acid, V C In addition, it is also rich in V E , V A , V B , SOD, arbutin, anthocyanin, flavonoids and other rare special components in other fruits, as well as abundant K, Fe, Zn, Ca, Mn, etc. The content of anthocyanin pigment in the fruit is as high as 163mg / 100g, The total amino acid content reaches 0.254%. Blueberries have high pectin content, which can effectively reduce cholesterol and prevent atherosclerosis; high vitamin content, enhance the body's resistance, rich pigment glycosides have the effect of activating the ret...

AI Technical Summary

Problems solved by technology

[0004] Blueberries are high-grade berry fruits with high water content. Depending on the variety, the fruit-setting period can be harvested from May to the end of October. The maturity period is inconsistent. When fresh blueberries are cut off from the supply of nutrients and water, their freshness will drop sharply. Its respiration is strong, various physiological metabolisms are fast, water loss will occur, the firmness will decrease and become soft, and the pedicle scars are easy to rot. Generally, it can only be stored for 1-2 days at 10-20°C after harvest, and the storage temperature is lower than 0°C. , will be unpopular in the market due to sweating

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