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Fresh-keeping storage method of fresh walnut with green husk removed

A fresh walnut and degreening technology, which is applied in the fresh-keeping and storage field of degreened fresh walnuts, to achieve good quality maintenance effect, solve water loss, and reduce surface microbial contamination.

Inactive Publication Date: 2019-09-20
陇南市经济林研究院核桃研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for fresh-keeping and storage of fresh-peeled walnuts in view of the above-mentioned deficiencies in the prior art. The problem of water, reduce the loss of walnut water, reduce the microbial contamination on the surface of fresh walnuts, ensure the flavor and edibility of fresh walnuts, prolong the storage time, meet the needs of consumers for fresh walnuts, and overcome the season Sexual shortcomings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The fresh-keeping storage method of the fresh walnut that takes off the green skin of the present embodiment, the walnut kind is strong Taylor, and this method is:

[0030] S1. Harvesting when the maturity of the green walnuts is nine mature, select the green walnuts free from diseases and insect pests, and obtain the green walnuts to be processed;

[0031] When the walnut green fruit is nine mature, the color of the fruit surface turns yellow, and there are a few cracks in the green skin. When harvested at this time, the kernels are rich and fragrant, and the water content of the kernels is 28% to 35%, and the color of the seed coat is light. Bright yellow, which can meet the requirement of easy peeling of the seed coat during the subsequent storage period. If harvested in advance, the nucleolus will not be ripe enough, and the fragrance will be weak, which will easily cause the fragrance to be too light after leaving the warehouse; if harvested too late, the moisture c...

Embodiment 2

[0051] The fresh-keeping and storage method of the fresh walnuts of the peeling off of the present embodiment, the walnut variety is delicate fragrance, and this method is:

[0052] S1. Harvesting when the maturity of the green walnuts is nine mature, select the green walnuts free from diseases and insect pests, and obtain the green walnuts to be processed;

[0053] When the walnut green fruit is nine mature, the color of the fruit surface turns yellow, and there are a few cracks in the green skin. When harvested at this time, the kernels are rich and fragrant, and the water content of the kernels is 28% to 35%, and the color of the seed coat is light. Bright yellow, which can meet the requirement of easy peeling of the seed coat during the subsequent storage period. If harvested in advance, the nucleolus will not be ripe enough, and the fragrance will be weak, which will easily cause the fragrance to be too light after leaving the warehouse; if harvested too late, the moisture...

Embodiment 3

[0070] The fresh-keeping storage method of the fresh walnut that takes off the green skin of the present embodiment, the walnut kind is Xiang Ling, and this method is:

[0071] S1. Harvesting when the maturity of the green walnuts is nine mature, select the green walnuts free from diseases and insect pests, and obtain the green walnuts to be processed;

[0072] When the walnut green fruit is nine mature, the color of the fruit surface turns yellow, and there are a few cracks in the green skin. When harvested at this time, the kernels are rich and fragrant, and the water content of the kernels is 28% to 35%, and the color of the seed coat is light. Bright yellow, which can meet the requirement of easy peeling of the seed coat during the subsequent storage period. If harvested in advance, the nucleolus will not be ripe enough, and the fragrance will be weak, which will easily cause the fragrance to be too light after leaving the warehouse; if harvested too late, the moisture cont...

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Abstract

The invention provides a fresh-keeping storage method of fresh walnut with green husk removed. The method includes harvesting when the maturity of walnut green fruits is 90%, removing green husk of green fruits without diseases and insect pests, cleaning and drying until the moisture content of nuts is 25-31%; when the moisture content of kernels is 19-22%, precooling for 24 hours under the conditions of light avoiding, ventilation and temperature of 0 DEG C; sealing in a self-regulating atmosphere bag, and storing under the conditions of light protection, ventilation and temperature of -10 DEG C; when the walnut is taken out of a warehouse for direct consumption, placing the walnut in an open manner for 2-3 hours under the condition of light avoiding and normal temperature; and when the walnut is taken out of the warehouse for transportation, taking the frozen fresh walnut with green husk removed out of the warehouse for cold chain packaging and transportation for consumption. The method solves the problems of mould, sticky and dehydration of seed shells occurring in the fresh-keeping storage process of the fresh walnut with the green husk removed, reduces the loss of walnut water, reduces the microbial pollution on the surface of the fresh walnut with the green husk removed, ensures the flavor and edible property of the fresh walnut, prolongs the storage time, prolongs the supply time of the walnut and overcomes the seasonal defect.

Description

technical field [0001] The invention belongs to the technical field of food fresh-keeping and storage, and in particular relates to a method for fresh-keeping and storing fresh walnuts without green skin. Background technique [0002] At present, fresh walnuts have formed a certain consumer market in the main walnut producing areas of my country due to their high amino acid and vitamin content and special flavor. Fresh walnuts are popular among consumers because of their rich nutrition and unique flavor and texture. Love, the market demand and price of fresh walnuts are rising rapidly. The storage research of fresh walnut includes two kinds of walnuts with green peel and peeled walnut. The storage method of fresh walnuts with green skins, during the storage of fresh walnuts, the green skins are prone to cracking, dehydration shrinkage, browning and rot. Moreover, the cooling capacity and storage cost required for fresh-keeping green walnuts are higher. The metabolic activi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B9/10A23B9/20A23B9/08
CPCA23B9/10A23B9/20A23B9/08A23V2002/00
Inventor 巩芳娥虎云青汪海任志勇
Owner 陇南市经济林研究院核桃研究所
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