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A kind of grape preservation method

A technology for storage and preservation of grapes, which is applied to the preservation of fruits and vegetables, preservation of fruits/vegetables through freezing/refrigeration, food preservation, etc., which can solve the problem of enzymatic defense system that damages grape antioxidant, poor control of dosage, and grape bleaching damage and other problems, to achieve the effect of simple fresh-keeping method, solving water loss and inhibiting reproduction

Active Publication Date: 2019-11-26
NINGBO ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But SO 2 The dosage is not well controlled, and the concentration of SO is too high 2 It will damage the fruit in the form of reactive oxygen radicals and sulfite anions, damage the enzymatic defense system of grapes against oxidation, and cause grape bleaching damage

Method used

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  • A kind of grape preservation method
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Experimental program
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Effect test

Embodiment 1

[0016] A method for storing and preserving grapes, the method comprising the following steps:

[0017] (1) After the grapes are picked, select grapes with no mechanical damage, no rot, no mildew, and the same maturity, and soak them in 250mg / L imazalil sulfate for 0.8min;

[0018] (2) After soaking, place it in a ventilated place to dry the surface moisture of the fruit; after drying the fruit, put it in a plastic bag, open the mouth and pre-cool the fruit to 0°C, then tie the mouth of the bag tightly and place it flat on the plastic bag In the fruit baskets, one layer is placed in each basket;

[0019] (3) Store the fruit baskets containing the fruits in the cold storage, and keep the temperature in the cold storage at -1.0-0°C in the early stage; from the 4th day, after the grapes are slightly frozen, adjust the temperature to 0-1°C; From the beginning of the day, after the ice melts, keep the temperature at -1.0 to 0°C. Since the grapes are packed in plastic bags after pi...

Embodiment 2

[0022] A method for storing and preserving grapes, the method comprising the following steps:

[0023] (1) After the grapes are picked, select grapes with no mechanical damage, no rot, no mildew, and the same maturity, and soak them in 300mg / L imazalil sulfate for 1.0min;

[0024] (2) After soaking, place it in a ventilated place to dry the surface moisture of the fruit; after drying the fruit, put it in a plastic bag, open the mouth and pre-cool the fruit to 0°C, then tie the mouth of the bag tightly and place it flat on the plastic bag In the fruit baskets, one layer is placed in each basket;

[0025] (3) Store the fruit baskets containing the fruits in the cold storage, and keep the temperature in the cold storage at -1.0-0°C in the early stage; from the 4th day, after the grapes are slightly frozen, adjust the temperature to 0-1°C; From the beginning of the day, after the ice melts, keep the temperature at -1.0 to 0°C. Since the grapes are packed in plastic bags after pi...

Embodiment 3

[0028] A method for storing and preserving grapes, the method comprising the following steps:

[0029] (1) After the grapes are picked, select grapes with no mechanical damage, no rot, no mildew, and the same maturity, and soak them in 400mg / L imazalil sulfate for 1.2min;

[0030] (2) After soaking, place it in a ventilated place to dry the surface moisture of the fruit; after drying the fruit, put it in a plastic bag, open the mouth and pre-cool the fruit to 0°C, then tie the mouth of the bag tightly and place it flat on the plastic bag In the fruit baskets, one layer is placed in each basket;

[0031] (3) Store the fruit baskets containing the fruits in the cold storage, and keep the temperature in the cold storage at -1.0-0°C in the early stage; from the 4th day, after the grapes are slightly frozen, adjust the temperature to 0-1°C; From the beginning of the day, after the ice melts, keep the temperature at -1.0 to 0°C. Since the grapes are packed in plastic bags after pi...

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Abstract

The invention provides a grape preservation and fresh-keeping method. The grape preservation and fresh-keeping method comprises the following steps: (1) after picking grapes, and performing soaking treatment for 0.8-1.2 min by use of 250-400 mg / L imazalil sulfate; (2) airing fruit, bagging the fruit, and flatly placing the bagged fruit in a fruit box; and (3) placing the fruit box containing the fruit in a refrigeration house, and controlling the temperature to be 1.0 DEG C below zero to 1.0 DEG C and the humidity to be 85-90%. The grape preservation and fresh-keeping method is simple; as imazalil sulfate is used for handling the grapes, the content of soluble solids in the grapes can be kept stable, breeding of mould on the surfaces of the grapes can be inhibited, accordingly, the disease and rotting rates of the grapes are obviously reduced, and the problems of water loss, senescence and rot in the grape preservation process are solved; and the interior of the refrigeration house is kept at appropriate temperature and humidity, so that the preservation time of the grapes can be prolonged while the color and the texture are not damaged.

Description

technical field [0001] The invention relates to a fruit fresh-keeping technology, in particular to a grape storage and fresh-keeping method. Background technique [0002] As the fruit with the largest output and the largest cultivation area in the world, grapes are very popular among people because of their sweet and sour taste and rich nutrition. Grape skins are thin and juicy, high in sugar and moisture, and are prone to dehydration, shattering, browning, and rot after harvest. The loss caused by post-harvest rot of grapes accounts for about 27% of the total output every year, which brings great difficulties to the development of grapes. Due to the perishability of grapes and the seasonal and regional characteristics of their production, their antiseptic preservation is very important. [0003] Among existing methods, SO 2 Fumigation is a more effective fresh-keeping measure. SO 2 It has a good inhibitory effect on the damage of grapes during storage, and can effectiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/154A23B7/04A23B7/148
CPCA23B7/04A23B7/148A23B7/154
Inventor 章豪陈若霞吴银良朱勇
Owner NINGBO ACAD OF AGRI SCI
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