Hickory process rough material preservation fresh-keeping method

A technology for storage, preservation and processing of raw materials, which is applied in the fields of fruit and vegetable preservation, food preservation, and preservation of fruits/vegetables through dehydration, etc. variable rate, reduction of free fatty acid production, inhibition of elevated lipase activity

Inactive Publication Date: 2008-07-09
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a suitable moisture content for the raw material of pecans, aiming at the short-term storage method at room temperature under ventilation and the short-term storage method under low temperature storage, which are easily affected by surrounding environmental factors and easily produce dried fruit "moisture". And storage in low temperature environment, and can control the content of oxygen in the storage environment, so as to prolong the storage shelf life of hickory raw materials, reduce the quality decline, and at the same time, the cost is low, and it is simple and suitable for long-term storage of processing raw materials used by fruit farmers, large sales and production enterprises. fresh-keeping method

Method used

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  • Hickory process rough material preservation fresh-keeping method

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Embodiment 1

[0029] Hickory nut processing raw material storage fresh-keeping method of the present invention, carry out according to the following steps:

[0030] 1) Harvesting and debrading: Harvest from the end of September to the beginning of October after the hickory fruit is fully mature. The special debratting machine removes the outer buds, which is the raw material of hickory nuts to be processed;

[0031] 2) Screening and cleaning: After removing the outer buds, remove mildewed, rotten and unfulfilled fruits by floating with water, and then use ozone water with a concentration of 10ppm to clean the pecan raw materials for 5 minutes to fully wash away the pecans. Microorganisms attached to the surface of walnut shell;

[0032] 3) Drying treatment: After the pecans are washed, they are dried under the sun or in a drying room at 40°C, and the moisture content of the nuts is regularly sampled until the moisture content of the nuts is controlled at 7-8%;

[0033] 4) Storage of raw m...

Embodiment 2

[0035] In this example, the raw materials after debraking and screening are cleaned with ozone water at a concentration of 5ppm for 8 minutes; they are exposed to the sun or heated and dried in a drying room at 50°C until the water content of the nuts is controlled at 7-8%; 0.12mm thick PE film bag is packed, and filling concentration is 100% nitrogen; Put into 0 ℃ fresh-keeping warehouse after tightening bag mouth and store, until storage finishes; All the other methods, steps are the same as embodiment 1.

Embodiment 3

[0037] In this example, the raw materials after debraking and screening are cleaned with ozone water at a concentration of 8ppm for 6 minutes; they are exposed to the sun or heated and dried in a drying room at 45°C until the water content of the nuts is controlled at 7-8%; 0.08mm thick PE film bag is packed, and filling concentration is 99% nitrogen; Put / put into -2 ℃ fresh-keeping warehouse after tightening bag mouth and store, until storage finishes; All the other methods, steps are the same as embodiment 1.

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Abstract

The invention discloses a storage and preservation method of raw material for Chinese walnut and belongs to the storage and preservation technology field of agricultural products. The method comprises the following procedures, (1) the raw material is picked and removed bract; (2) the raw material is sorted and cleaned by the ozone water with the concentration of 5 to 10 ppm; (3) the raw material is dried to the water contents of nutlet at 7 to 8 percent; (4) the package and the storage of the raw material is carried out according to the following procedures, the raw material is packaged with the PE film with the thickness of 0.08 to 0.12 millimeters, filled with the nitrogen with the concentration of 98 to 100 percent, and stored in the fresh-preserved storehouse with the temperature of minus 3 DEG C to 0 DEG C. The method has the advantages of low cost, simple and easy operation, no mildewing and rancidity phenomenon after being stored for 12 months, more than 97 percent of good fruit rate, keeping better goods value and realizing the annual storage and the supply of raw material for Chinese jujube. The method is suitable for wide application on fruit growers, firms with large sales and manufacturers.

Description

technical field [0001] The invention relates to the technical field of storage and preservation of agricultural products, in particular to a method for storage and preservation of hickory processed fruit raw materials. Background technique [0002] Hickory is a famous and excellent agricultural product unique to our country. It has been planted and produced for hundreds of years. Pecan is considered as a natural nutritional supplement, rich in protein, carbohydrates and various amino acids, vitamins, especially the vegetable fat content is as high as 50-60%, and it is a veritable "oil depot in the fruit". The fatty acids in oils and fats are mainly unsaturated fatty acids such as oleic acid, linoleic acid, and linolenic acid, accounting for more than 70%. Both health care, beauty and other effects. Because of its good flavor and high nutritional value, hickory nuts have long been consumed by a large number of consumers and the sales price has remained high. They are called...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/00A23B7/157A23B7/02A23B7/148
Inventor 郜海燕陈杭君毛金林陶菲陈文烜周拥军宋丽丽葛林梅
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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