Vacuum microwave freeze-drying method for producing freeze-dried prawn meat

A freeze-drying and vacuum microwave technology, which is applied in the fields of food drying, food science, food preservation, etc., can solve the problems of large loss of nutrients, long processing time, difficult processing, etc., to achieve simple processing and reduce processing costs. Effect

Inactive Publication Date: 2014-07-02
刘振东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dried prawn meat on the market is produced by high-temperature drying and dehydration, which has the disadvantages of great loss of nutrients, difficulty in curing, and long processin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Production of freeze-dried prawn meat

[0017] Wash the prawns with water, remove the head, peel the skin, remove the viscera, and rinse with water;

[0018] Boiling the above-mentioned prawn meat with boiling salt water with a mass ratio of 40-50% for 30 minutes, then removing the prawn meat and soaking it in 5 times more pure water for 20 minutes;

[0019] Put the prawn meat soaked in pure water into a stainless steel plate, and dry it in a vacuum microwave dryer. The microwave power is controlled between 0.8-1.5 W / g, and the vacuum degree is between 20-40KPA. -50% moisture, become semi-dried prawn meat;

[0020] Put the semi-dried prawn meat together with the stainless steel plate into the freeze dryer, and freeze it below -25°C for 12 hours; the frozen prawn meat is sublimated and dried in the freeze dryer; the drying process is: use 20 minutes at 40-100PA raising the temperature to 80°C under pressure, keeping it for 4-6 hours, then reducing the temperature to 50...

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Abstract

The invention discloses a vacuum microwave freeze-drying method for producing freeze-dried prawn meat. The method comprises the following steps: washing, removing the heads, the skin and the internal organs, boiling with salt, removing the salt, drying in vacuum and microwave to remove 40-50% of moisture, subsequently freezing, drying in vacuum, and packaging to obtain a finished product. The method for producing the freeze-dried prawn meat, which is disclosed by the invention, is low in production cost and energy-saving, and the finished product well maintains the original color, the shape and the nutrition of prawn meat, and is good in reconstitution property, good in taste and convenient to soak and eat.

Description

technical field [0001] The invention relates to the field of food and aquatic product processing, in particular to the production of freeze-dried prawn meat by a vacuum microwave freeze-drying method. Background technique [0002] Prawn meat is one of the eight treasures of the sea. It is a very precious seafood. Now the wild population is very rare, and it is a seafood with high protein content. In addition to being eaten fresh, prawn meat can also be dried, watered and cooked. [0003] Dried prawn meat on the market is produced by high-temperature drying and dehydration, which has the disadvantages of great loss of nutrients, difficulty in curing, and long processing time; freeze-dried prawn meat is manufactured by vacuum freeze-drying method, which maintains nutrition, color, taste and shape. There are improvements, and the hair system is also simple. Contents of the invention [0004] The vacuum microwave freeze-drying method of the present invention produces freeze-...

Claims

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Application Information

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IPC IPC(8): A23L3/44
CPCA23L3/44A23L17/40A23V2002/00A23V2300/10Y02P60/85
Inventor 刘振东
Owner 刘振东
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