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Walnut kernel peeling method

A technology for walnut kernels and dry products, which is applied in the fields of shelling, pod removal, food science, etc. It can solve the problems of difficulty in peeling walnut kernels, and achieve the effect of difficult peeling, high peeling rate, and easy peeling

Inactive Publication Date: 2008-03-26
SHANDONG INST OF POMOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fundamentally solve the problem of difficult peeling of walnut kernels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Soak the dried walnut kernels in water at a temperature of 0°C to 10°C to rehydrate the dried walnut kernels to a water content ≥ 40%; freeze the rehydrated walnut kernels at a temperature of -5 to -8°C, the freezing time is 12 hours; when the ice coat appears on the surface of the walnut kernels, take out the frozen walnut kernels and put them in the air at room temperature > 0°C to melt naturally; then peel off the seed coat of the walnut kernels manually . For example, during mass production, ice coats can be melted in warm water at 30-60°C, and then the seed coats of walnut kernels can be peeled off mechanically. There are many methods of mechanical peeling, such as mechanical brush, mechanical stirring and so on.

Embodiment 2

[0022] Freeze the fresh walnut kernels directly, the freezing temperature is -20~-25℃, and the freezing time is 1 hour; when the surface of the walnut kernels is covered with ice, take out the frozen walnut kernels and put them in the air at room temperature > 0℃ Melt naturally; then peel off the seed coat of the walnut kernel manually. For example, during mass production, ice coats can be melted in warm water at 30-60°C, and then the seed coats of walnut kernels can be peeled off mechanically. There are many methods of mechanical peeling, such as mechanical brush, mechanical stirring and so on.

[0023] It can be seen from the above that the method of the present invention is simple and easy to operate; it can remove the seed coat quickly and in large quantities, and the nuts after peeling the seed coat are clean and beautiful in color; the walnut kernels do not deteriorate, are pollution-free and pollution-free; , easy to peel; meet the characteristics of pollution-free foo...

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Abstract

The present invention relates to a method for removing walnut kernel seed cover under the condition of normal temperature after the walnut kernel is frozen at low-temperature. It is characterized by that for dried walnut kernel the walnut kernel is soaked in the water with 0-10deg.C, after the walnut kernel is reconstituted, the walnut kernel is frozen; for fresh walnut kernel whose water content is greater than or equal to 45% it has no need of reconstitution, can be directly frozen; its freeze temperature is -5 - -25deg.C; after a lyer of ice cover is formed on the walnut kernel surface, the walnut kernel can be taken out and can be placed at normal temperature or into water with 30-60deg.C to melt the ice cover, then a manual method or mechanical method can be adopted to strip seed cover of walnut kernel. Its technological process includes the following steps: reconstitution, freezing, melting, stripping seed cover so as to obtain finished product.

Description

technical field [0001] The invention relates to a new method for removing the seed coat of the walnut kernel, in particular to a method for removing the seed coat of the walnut kernel at normal temperature after freezing the walnut kernel at a low temperature. Background technique [0002] The main edible part of walnut is walnut kernel. Walnut kernel is rich in nutrition. Walnut kernels are rich in unsaturated fatty acids, and contain linoleic acid glyceride, linolenic acid, oleic acid glyceride and other components that cannot be synthesized by the human body. They are widely used in food, medicine and other fields. Qi and blood, beauty and anti-aging effects. The phospholipid contained in it has the function of nourishing the brain and is the basic substance of nerve cell metabolism, so walnut kernel is also called natural brain gold. [0003] There are dry products and fresh products of walnut kernels. Whether it is dry products, fresh products, or processed walnut ker...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23N5/08
Inventor 鲁墨森杨娟侠于兰岭鲁宁琳辛力
Owner SHANDONG INST OF POMOLOGY
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