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Chestnut fresh-keeping process

A technology of chestnut and craftsmanship, which is applied to the preservation of fruits/vegetables by dehydration, preservation of fruits/vegetables by freezing/refrigeration, packaging objects under special gas conditions, etc. Deterioration and other problems to achieve the effect of preventing color browning

Inactive Publication Date: 2006-04-05
徐康明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The folk method of storing chestnuts is to dig pits and bury them deeply. When the temperature is low, the chestnuts buried in the ground are easy to freeze, damage and deteriorate. When the temperature is high, they will become moldy and rot, which will affect the original taste of chestnuts.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0018] A kind of chestnut fresh-keeping technology, this technology comprises the steps:

[0019] ①Primary selection: select normal chestnuts with no insect eyes and no deterioration;

[0020] ②Classification: evenly sort chestnuts according to their size and specifications;

[0021] ③ Refrigeration and dehydration: Refrigerate evenly sorted chestnuts for 2 months, and keep the temperature at 0°C. Let the chestnuts be dehydrated naturally in the refrigerator until the weight of the chestnuts is reduced by 3%;

[0022] ④ Shelling and undressing: peel the dehydrated chestnuts, soak them in hot water at 50°C and undress them;

[0023] ⑤ Selection: select undamaged chestnut meat;

[0024] ⑥Impregnation and preservation: Rinse with sterile water at 20°C, add 1‰ of vitamin E to the sterile water, soak for 3 minutes, take out and dry;

[0025] ⑦ Packing: Pack the dried chestnuts in vacuum bags;

[0026] ⑧ Refrigeration: Put the packaged chestnuts in the refrigerator and keep the ...

Embodiment 2

[0028] A kind of chestnut fresh-keeping technology, this technology comprises the steps:

[0029] ①Primary selection: select normal chestnuts with no insect eyes and no deterioration;

[0030] ②Classification: evenly sort chestnuts according to their size and specifications;

[0031] ③ Refrigeration and dehydration: Refrigerate evenly sorted chestnuts for one and a half months, with the temperature controlled at 1°C, allowing the chestnuts to dehydrate naturally in the refrigerator until the weight of the chestnuts is reduced by 2%;

[0032] ④ Shelling and undressing: peel the dehydrated chestnuts, soak them in hot water at 55°C and undress them;

[0033] ⑤ Selection: select undamaged chestnut meat;

[0034] ⑥Impregnation and preservation: Rinse with sterile water at 25°C, add 1.5‰ of vitamin E to the sterile water, soak for 3 minutes, take out and dry;

[0035] ⑦ Packing: Pack the dried chestnuts in vacuum bags;

[0036] ⑧ Refrigeration: Put the packaged chestnuts in the ...

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PUM

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Abstract

The invention relates to a fresh-keeping process for chestnut, comprising: initial separation, sorting, freezing for dewatering, shucking, refining, soaking for fresh-keeping, vacuum-packing and freezing, etc. The invention solves the problem of storage for a long time. There is no difference between the chestnut stored according to the process in this invention and fresh chestnut in color, taste and nutriment. The process is adaptable for the chestnut process industry.

Description

technical field [0001] The invention relates to a fresh-keeping process of chestnuts. Background technique [0002] Chestnut is also called chestnut, and the nut taste is sweet, nutritious, and has high economic value, and is deeply loved by people. Chestnuts mature every autumn, and the maturity period is very short. It is difficult to preserve them at room temperature. Generally, they can only be preserved for 20-30 days at most. The folk method of storing chestnuts is to dig pits and bury them deeply. When the temperature is low, the chestnuts buried in the ground are easy to freeze, damage and deteriorate. If the temperature is high, they will become moldy and rot, which will affect the original taste of chestnuts. Contents of the invention [0003] The object of the invention is to disclose a chestnut fresh-keeping process which can store chestnuts for a long time and still maintain the original taste of chestnuts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/04A23B7/02B65D81/20
Inventor 徐康明
Owner 徐康明
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