Fresh keeping agent for blueberries as well as preparation method and application of fresh keeping agent

A preservative, blueberry technology, applied in application, fruit and vegetable preservation, food preservation, etc., to achieve high-quality preservation, integrity, and safe use.
CN109362872APending Publication Date: 2019-02-22ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
Publication Date
2019-02-22

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Abstract

The invention provides a fresh keeping agent for blueberries as well as a preparation method and application of the fresh keeping agent. The fresh keeping agent consists of 0.03%-0.5% of a galla chinensis extract, 0.5%-1.0% of ascorbic acid and 1.0%-2.0% of chitosan, and the pH of the fresh keeping agent is 2.0-6.0. The fresh keeping agent provided by the invention can significantly restrain botryotinia fuckeliana of the blueberries, effectively relieve membrane lipid peroxidation of picked blueberries, maintain integrity of cell membranes of the blueberries, and enable the storage time of theblueberries to be prolonged to 50 days or above from 20 days through conventional refrigeration, the rotting rate of the blueberries is reduced to 10% or below, the rate of weight loss is controlledto be 5% or below, and relative long-time high-quality fresh-kept storage of the blueberries can be realized. The fresh keeping agent for blueberries is safe to use, the treated blueberries do not have any poisonous and harmful substances, and the fresh keeping agent has the characteristics of being efficient, safe and environmentally-friendly.
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Description

technical field

[0001] The invention relates to the technical field of green anti-corrosion and fresh-keeping fresh fruits, in particular to a green safe fresh-keeping agent for blueberries and its preparation method and application. Background technique

[0002] Blueberry fruit has a unique flavor and is rich in anthocyanins, flavonoids, vitamin C, folic acid, ellagic acid and other physiologically active substances. It has anti-aging, blood pressure lowering, anti-oxidation, anti-cancer and other health effects. One of the healthy fruits, it is favored by consumers and has a very broad market prospect. However, the harvest period of blueberry is high temperature and rainy, the water content of the fruit is high, the peel is thin, and it is very easy to rot after harvesting, and the loss rate is as high as 20% to 40%. In addition, blueberries are easily attacked by pathogenic fungi during storage, resulting in drastic changes in their structure, nutrition, physiological an...

Claims

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