Frozen penaeus vannamei with heads processing method

A processing method and technology of white shrimp, which can be applied in shrimp/lobster processing, climate change adaptation, etc., can solve problems such as redness and blackening of the head, and achieve the effect of improving quality and appearance

Active Publication Date: 2015-10-07
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the present invention provides a method for processing frozen headed Penaeus vannamei, which is used to solve the problem that the head of Penaeus vannamei is prone to black and red changes after thawing in frozen storage by traditional methods

Method used

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  • Frozen penaeus vannamei with heads processing method
  • Frozen penaeus vannamei with heads processing method

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Embodiment 1

[0017] In this embodiment, the present invention will be described in detail with reference to the accompanying drawings. The invention suppresses shrimp head polyphenol oxidase activity and microbial reproduction through low-temperature control and composite biological preservation technology, solves the problem of red heads and black heads in shrimp heads that are prone to appear in the frozen lead vannamei thawing process, and improves the quality and appearance of frozen shrimps.

[0018] The processing method of frozen lead vannamei provided by the present invention is realized through the following schemes:

[0019] a. Put the fresh and live Penaeus vannamei into ice water with a water temperature of 0-2℃ while passing CO 2 Sudden death of gas.

[0020] b. Cleaning and disinfection: cleaning and removing sediment and weeds, then transfer the prawns to ozone water with an ozone concentration of 0.8-1.0ppm and a water temperature of 0-5°C for 3-5 min.

[0021] c. Soaking and k...

Embodiment 2

[0026] Comparative Test, figure 2 For the comparison effect of the shrimp head blackhead rate of frozen shrimp processed by the traditional method and the method of the present invention under 0-4℃ cold storage after thawing, it can be clearly seen from the experimental results that the processing method provided by the present invention can greatly reduce The blackhead rate of shrimp heads has a prominent effect.

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Abstract

The present invention discloses a frozen penaeus vannamei with heads processing method which is realized by the scheme as follows: timely killing live penaeus vannamei, cleaning and disinfecting, soaking to preserve fresh, freezing, and ice glazing. The soaking fresh preserving process contains biological preservative water or ice and ice glazing water which contains 0.3-0.5 g / L nisin, 0.5-1.0 g / L chitosan, 3-5 g / L epsilon-polylysine (epsilon-PL), 0.005-0.01 g / L 4-hexylresorcinol (4-HR), and 0.5-1.0 g / L L-ascorbic acid (Vc). By low-temperature control and complex biological preservation technology, polyphenol oxidase activity and microbial proliferation in the penaeus vannamei head can be inhibited, the problems of easy appeared black and red heads of the frozen penaeus vannamei with heads during the thawing process can be resolved, and the quality and appearance of the frozen penaeus vannamei with heads are enhanced.

Description

technical field [0001] The invention relates to a fresh-keeping technology of aquatic products, in particular to a processing method of frozen head-on Penaeus vannamei. Background technique [0002] Penaeus vannamei is an aquatic product with high nutritional value. However, vannamei is easy to be corrupted and difficult to store. Generally, it needs to be refrigerated. However, after being treated by traditional refrigerated preservation methods, the head of the shrimp is prone to black and red changes during the thawing process. Phenomenon, red to black greatly reduces the quality and appearance of South American prawns, seriously affecting the sales value of frozen prawns. Contents of the invention [0003] In view of the above problems, the present invention provides a method for processing frozen headed Penaeus vannamei, which is used to solve the problem that the heads of the prawns frozen and stored by traditional methods are prone to black and red changes after ...

Claims

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Application Information

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IPC IPC(8): A22C29/02
CPCY02A40/90
Inventor 肖朝耿唐宏刚陈黎洪叶梦迪吴玫瑰沈跃军
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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