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Fresh-keeping method for grapes

A fresh-keeping method, grape technology, applied in the direction of fruit and vegetable preservation, food preservation, fruit/vegetable preservation through freezing/refrigeration, etc., can solve problems affecting commodity value and economic value, threshing, rot, etc., to maintain sensory and physical and chemical quality , Extend the storage period, extend the effect of the shelf life

Inactive Publication Date: 2019-01-11
NANJING JIANGNING TAIWAN PEASANTS INNOVATION PARKDEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Grapes are delicious and have high nutritional value. Ripe berries contain as much as 10%-30% sugar, mainly glucose, and also contain minerals such as calcium, potassium, phosphorus, iron, vitamins and amino acids. One of the most popular summer fruits, but grapes are berry fruits with thin and juicy skins and extremely high water content, which makes grapes prone to mildew, threshing, browning, rot, dry branches and other phenomena and problems during transportation and storage. Seriously affect its commodity value and economic value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Pick eight ripe grapes, spread the fruit flat on a bamboo mat with good air permeability, with a thickness of about 3-5cm, so as to dissipate the heat in the field in time; pick out the fruits with mechanical damage, pests, rot and defects; then , Timely (control within 12 hours) put the grapes into the cold storage for pre-cooling treatment, the temperature of the pre-cooling storage is controlled at 2°C ± 0.5°C, and the pre-cooling is for 16 hours.

[0015] (2) Put the grapes treated in step (1) into a plastic box, put the plastic box into a PE fresh-keeping bag with a thickness of 0.03mm and a packing capacity of 35cmx25cm, put 750g of grapes in each bag, and then tie the mouth of the fresh-keeping bag tightly ;Put the fresh-keeping bags containing grapes into plastic baskets, and carry out cold adaptation training in a cold storage at 0°C±0.5°C for 16 hours. Store on ice at ±0.5°C. The storage period of grape fruit is 35 days, and the good fruit rate is 85.3%. ...

Embodiment 2

[0017] (1) Pick eight mature grapes, spread the fruit flat on a bamboo mat with good air permeability, with a thickness of about 3-5cm, to dissipate the heat in the field in time; pick out the fruits with mechanical damage, pests, rot and defects; then , Timely (control within 12 hours) put the grapes into the cold storage for pre-cooling treatment, the temperature of the pre-cooling storage is controlled at 2°C ± 0.5°C, and the pre-cooling is for 16 hours.

[0018] (2) Put the grapes treated in step (1) into a plastic box, put the plastic box into a PE fresh-keeping bag with a thickness of 0.04mm and a packing capacity of 35cmx25cm, put 500g of grapes in each bag, and then tie the mouth of the fresh-keeping bag tightly ;Put the fresh-keeping bags containing grapes into plastic baskets, and carry out cold adaptation training in a cold storage at 0°C±0.5°C for 16 hours. Store on ice at ±0.5°C. The freshness period of the stored grape fruit is up to 38 days, and the good fruit ...

Embodiment 3

[0020] (1) Pick eight mature grapes, spread the fruit flat on a bamboo mat with good air permeability, with a thickness of about 3-5cm, to dissipate the heat in the field in time; pick out the fruits with mechanical damage, pests, rot and defects; then , Timely (control within 12 hours) put the grapes into the cold storage for pre-cooling treatment, the temperature of the pre-cooling storage is controlled at 2°C ± 0.5°C, and the pre-cooling is for 16 hours.

[0021] (2) Put the grapes treated in step (1) into a plastic box, put the plastic box into a PE fresh-keeping bag with a thickness of 0.05mm and a packing capacity of 35cmx25cm, put 500g of grapes in each bag, and then tie the mouth of the fresh-keeping bag tightly . Put the fresh-keeping bags containing grapes into plastic baskets, and carry out cold adaptation training in a cold storage at 0°C±0.5°C for 16 hours. Store under ice temperature. The storage period of grape fruit is 38 days, and the rate of good fruit is 8...

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Abstract

The invention discloses a fresh-keeping method for grapes, and provides a grape storing and fresh-keeping method capable of improving the grape storage quality and prolonging the grape fresh-keeping period. The method is as follows: picking grapes which are 80% mature, dispersing field heat, removing fruits with mechanical damage, diseases and insect pests, decays and defects, then placing the grapes into a cold storage for pre-cooling treatment within 12 hours, and controlling the pre-cooling storage temperature at 2+ / -0.5 DEG C; filling a rigid container with the pre-cooled grapes, then putting the rigid container filled with the grapes into a PE preservation bag 0.03-0.05mm in thickness, and then tightening the mouth of the preservation bag; and carrying out cold acclimation on the preservation bag containing the grapes for 16 hours, and then conducting ice-temperature storage at -0.7+ / -0.5 DEG C. The grape storing and fresh-keeping method of the invention organically combines two techniques of the ice-temperature storage and spontaneous atmosphere controlling for the fresh-keeping of grapes, so that the fresh-keeping period can reach 38 days, the good fruit rate reaches 89.6%,and the sensory quality and physical-chemical quality of grapes are good.

Description

technical field [0001] The invention relates to the technical field of freshness preservation, in particular to a method for preservation of grapes. Background technique [0002] Grapes are delicious and have high nutritional value. Ripe berries contain as much as 10%-30% sugar, mainly glucose, and also contain minerals such as calcium, potassium, phosphorus, iron, vitamins and amino acids. One of the most popular summer fruits, but grapes are berry fruits with thin and juicy skins and extremely high water content, which makes grapes prone to mildew, threshing, browning, rot, dry branches and other phenomena and problems during transportation and storage. Seriously affect its commodity value and economic value. Due to the perishability of grapes and the characteristics of their production seasons, regions, and off-site transportation and sales, their antiseptic, fresh-keeping storage and transportation are very important. Contents of the invention [0003] The purpose of...

Claims

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Application Information

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IPC IPC(8): A23B7/04A23B7/00
CPCA23B7/04A23B7/00
Inventor 俞平陈福明业红涛汤信仁
Owner NANJING JIANGNING TAIWAN PEASANTS INNOVATION PARKDEV
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