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A kind of dry soft-shell crab powder and processing method thereof

A processing method and technology of soft-shell crabs, applied in the field of soft-shell crab dry powder and its processing, can solve the problems of short maintenance time of soft shells, achieve the effects of improving living standards, increasing added value, and protecting human health

Active Publication Date: 2019-02-12
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, the soft shell of soft-shell crabs lasts for a short time. Currently, the production of soft-shell crabs is to take out the soft-shell crabs within 3 hours of the end of moulting, clean the package, and freeze them.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1) Clean and sterilize the soft-shell crabs and freeze them at -80°C for 24 hours;

[0022] 2) Vacuum freeze-dry the frozen soft-shell crabs, maintain them at 0°C, -10°C, -20°C, -50°C, -70°C, and -80°C for half an hour, and finally lower the temperature to -86°C , and maintain for 1.5 hours;

[0023] 3) In a vacuum state, carry out sublimation drying, the condition of sublimation drying is a vacuum of 1.3 Pa; the temperature of sublimation drying is -35°C, so that the water content of soft shell crabs is reduced to about 10%;

[0024] 4) Heating the vacuum-dried soft-shell crabs, performing analysis and drying, so that the water content continues to decrease until the water content falls below 5%.

[0025] The above-mentioned processed soft-shell crabs can be sold in vacuum packaging after being pulverized by a small-sized pulverizer.

Embodiment 2

[0027] 1) Soft-shell crabs are sterilized and frozen at -80°C, and the freezing time is preferably 48 hours;

[0028] 2) Vacuum freeze-dry the frozen soft-shell crabs, maintain them at 0°C, -10°C, -20°C, -50°C, -70°C, and -80°C for half an hour, and finally lower the temperature to -86°C , and maintain for 1.5 hours;

[0029] 3) Carry out sublimation drying in a vacuum state, the sublimation drying condition is a vacuum of 13 Pa, and the sublimation drying temperature is not higher than -30°C; the water content of the soft shell crab is reduced to below 10%;

[0030] 4) Heating the vacuum-dried soft-shell crabs, performing analysis and drying, so that the water content continues to decrease until the water content falls below 5%.

[0031] The soft-shell crabs processed above are pulverized into soft-shell crab powder through a small pulverizer.

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Abstract

The invention provides soft shell crab dry powder and a processing method thereof. Compared with the prior art, a product keeps nutritional ingredients of original soft shell crabs, the water content is smaller than 5%, and the product is porous and can be processed into powder easily; nutritional value is high; the soft shell crab powder product produced through the method is high in protein content and rich in amino acid ingredients necessary to the human body; in addition, the soft shell crabs contain highly-unsaturated fatty acid such as EPA and DHA beneficial for intelligence development, and play an important role in improving the living standard and protecting human health.

Description

technical field [0001] The invention belongs to the technical field of seafood processing, and in particular relates to dry soft-shell crab powder and a processing method thereof. Background technique [0002] Soft-shell crab is a short-lived form shortly after the crab molts. At this time, the whole body of the crab is soft, and even the meat and shell can be eaten. Because soft-shell crabs also shed the skin of gills and stomach when the crab moults, therefore, in addition to the advantages of high edible rate and convenient eating, soft-shell crabs also have the characteristics of high calcium, low fat and cleanliness. In addition, it is necessary to prepare soft-shell crabs, which must be controlled within 3 hours after molting, and the preciousness of soft-shell crabs is that they are only soft in the short 3 hours after molting, and even meat and shells can be used. Eat, the meat is tender and nutritious. The meat of soft shell crab is tender and fragrant, and it is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L17/40A23L33/00A23B4/03A23B4/037
CPCA23B4/03A23B4/037A23V2002/00A23V2200/30A23V2300/10
Inventor 母昌考王劼驰刘笑王春琳李荣华宋微微冀雄飞
Owner NINGBO UNIV
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