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Fresh-keeping method for prolonging storage period of kiwi fruits

A fresh-keeping method and kiwifruit technology, which is applied in the fields of fruit and vegetable preservation, food preservation, fruit/vegetable preservation through freezing/refrigeration, etc., can solve the problems of general low-temperature storability of kiwifruit fruit, difficult kiwifruit preservation and marketing, and high cost, and achieve Good fresh-keeping effect, does not affect fruit quality, and increases firmness

Inactive Publication Date: 2014-02-05
GUIYANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the kiwifruit fresh-keeping technologies widely used at home and abroad mainly include: the purpose of fresh-keeping, controlled atmosphere storage and methods of controlling the storage environment. Although the fresh-keeping effect is better than that of controlled atmosphere storage, they all have large investment and high cost, which does not meet the actual situation in our country. The characteristics of mechanical refrigeration; relatively speaking, it only needs to build a mechanical cold storage, and the investment is relatively small, and it is easier to realize. Therefore, it is the main method of kiwifruit fresh-keeping in my country now, but the low-temperature storage of kiwifruit is average. Therefore, the common ones in my country The refrigerated and fresh-keeping time of kiwifruit varieties is about 2 to 3 months, that is, it is difficult to keep kiwifruit fresh until it goes on sale during the traditional Chinese festival "Spring Festival"

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 23 days before the ripening of kiwi fruit, use EDTA chelated calcium dilution ratio prepared according to the dilution ratio of 1:1000 --- root irrigation, drip irrigation, flushing: 1:1000-1500 dilution ratio --- root irrigation, drip irrigation, Flushing: 1:1000-1500 dilution ratio --- root irrigation, drip irrigation, flushing: 1:1000-1500 solution, for the first calcium spraying treatment, the fruit should be completely sprayed wet during operation, if two hours after spraying If it rains, it needs to be re-sprayed after the weather clears. After an interval of 15 days, the second calcium spraying treatment was carried out according to the first method and requirements, and no other operations were carried out until the kiwi fruit was picked. After the fruit is picked, immediately select the fruit with uniform size, no obvious diseases, insect pests and mechanical damage, transfer the fruit to the cold storage at 2°C for 24 hours, then put it into a polyethylene (PE...

Embodiment 2

[0019] 25 days before the ripening of kiwi fruit, use EDTA chelated calcium dilution ratio prepared according to the dilution ratio of 1:1500 --- root irrigation, drip irrigation, flushing: 1:1000-1500 dilution ratio --- root irrigation, drip irrigation, Flushing: 1:1000-1500 dilution ratio --- root irrigation, drip irrigation, flushing: 1:1000-1500 solution, for the first calcium spraying treatment, the fruit should be completely sprayed wet during operation, if two hours after spraying If it rains, it needs to be re-sprayed after the weather clears. After an interval of 15 days, the second calcium spraying treatment was carried out according to the first method and requirements, and no other operations were carried out until the kiwi fruit was picked. After the fruit is picked, immediately select the fruit with uniform size, no obvious diseases, insect pests and mechanical damage, transfer the fruit to the cold storage at 2°C for 24 hours, then put it into a polyethylene (PE...

Embodiment 3

[0022]27 days before the ripening of kiwi fruit, use EDTA chelated calcium dilution ratio prepared according to the dilution ratio of 1:2000 --- root irrigation, drip irrigation, flushing: 1:1000-1500 dilution ratio --- root irrigation, drip irrigation, Flushing: 1:1000-1500 dilution ratio --- root irrigation, drip irrigation, flushing: 1:1000-1500 solution, for the first calcium spraying treatment, the fruit should be completely sprayed wet during operation, if two hours after spraying If it rains, it needs to be re-sprayed after the weather clears. After an interval of 15 days, the second calcium spraying treatment was carried out according to the first method and requirements, and no other operations were carried out until the kiwi fruit was picked. After the fruit is picked, immediately select the fruit with uniform size, no obvious diseases, insect pests and mechanical damage, transfer the fruit to the cold storage at 2°C for 24 hours, then put it into a polyethylene (PE)...

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Abstract

The invention relates to a fresh-keeping method for prolonging a storage period of kiwi fruits and belongs to the technical field of fruit fresh keeping. The method comprises the following steps: spraying an EDTA (Ethylene Diamine Tetraacetic Acid) chelated calcium water solution prepared by diluting in a ratio of 1:1000-2000w / w on the kiwi fruits before the fruits are picked; after the fruits are picked, carrying out refrigerating and freshness keeping on the kiwi fruits. The calcium content of cells of the kiwi fruits is increased by absorption and permeation effects of kiwi fruit peels in the growing period on EDTA chelated calcium by, so as to influence the post-harvest physiological activities of the kiwi fruits, keep the firmness of the fruits, effectively delay the respiratory climacteric of the kiwi fruits, delay the post-harvest aging of the fruits and improve the low-temperature storage resistance of the kiwi fruits; the low-temperature refrigeration is combined so as to prolong the fresh-keeping time of the kiwi fruits, reduce the fresh-keeping cost and keep the original flavor of the fruits.

Description

technical field [0001] This research involves a fresh-keeping method for fruit, specifically a fresh-keeping method for prolonging the storage period of kiwi fruit. Background technique [0002] Actinidia chinensis, also known as kiwi fruit, carambola, and sheep fruit, belongs to Actinidiaceae (Actinidiaceae), and is a wild vine perennial deciduous fruit tree native to my country. Its fruit is a berry, which is oblong in the form of eggs, with a transverse diameter of about 3 cm, densely covered with yellow-brown branched villous hairs. The flowering period is from May to June, and the fruit ripening period is from August to October. Kiwi fruit is rich in nutrition, has the functions of regulating Qi, lowering blood pressure, antipyretic, quenching thirst, treating stranguria, strengthening the stomach, etc., and can strengthen the immune system, promote wound healing and iron absorption; it is rich in inositol And amino acids, which can inhibit depression and supplement t...

Claims

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Application Information

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IPC IPC(8): A23B7/154A23B7/04
Inventor 杜超马立志王瑞谢国芳李白鸽刘晓燕刘志刚
Owner GUIYANG UNIV
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