Purifying processing technology for uncooked oysters

A processing technology, a technology for eating oysters, which is applied in the field of purification and processing technology for eating raw oysters, can solve the problems of insufficient vigor of shellfish, backward purification of shellfish, and lack of competitiveness, etc., and achieve a good market prospect, high freshness, and convenient operation. Effect

Inactive Publication Date: 2017-01-25
NANTONG HAOLILAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

my country's shellfish purification is still relatively backward. At present, there are only 5 shellfish purification factories that have formed a large scale in the country. Due to technical deficiencies such as pu

Method used

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  • Purifying processing technology for uncooked oysters

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Embodiment 1

[0033] According to the technical requirements of the present invention, in a 2 ton / time-scale shellfish purification pilot plant built in Tuandao, Qingdao, Shandong, 20Kg each of pleated oysters, Dalian Bay oysters, Pacific oysters, and dense scale oysters were taken, and they were temporarily raised for 7 days. , and then infect the norovirus-positive stool samples and coliform culture fluid respectively, after 48hr purification, the coliform group was detected by GB4789.3-94, and the norovirus was detected by SN / T2626-2010, and the changes before and after purification were compared , the results showed that the content of coliform bacteria increased by 10 4 -10 5 The MPN / 100g shell meat dropped to 42, and no sediment was detected.

Embodiment 2

[0035] According to the technical requirements of the present invention, in a 5 ton / time scale oyster purification factory built in Zhanjiang, Guangdong, 50Kg of oysters near the river were taken, and after 2 days of temporary cultivation, they were infected with norovirus-positive feces samples and coliform bacteria respectively. The culture medium was purified for 48 hours. The coliform bacteria were detected by GB4789.3-94 and the norovirus was detected by SN / T2626-2010. Compared with the changes before and after purification, the results showed that the coliform bacteria content increased from 2.4×10 5 The MPN / 100g shell meat dropped to 42, and no sediment was detected.

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Abstract

The invention discloses a purifying processing technology for uncooked oysters based on an ozone (O3) seawater treatment technology. A completely open system is involved in the technology and can be run in a room with adjustable environment temperature. The technology includes the six steps that natural seawater is drawn to be pretreated, so that the technical requirement for water used for purifying the oysters is met; the oysters are picked, cleaned and loaded into baskets and then put into a purifying pool; the pretreated water used for purifying is input into an O3 mixer, and the concentration of O3 in the seawater is regulated; the seawater containing O3 with the appropriate concentration is sprayed into the purifying pool according to process parameters to purify the oysters; the purified seawater is treated and then discharged and can not be used for water cycle; a one-batch purifying technological process is not completed until the level of pollutants in the oysters reaches uncooked food hygienic standard or the oysters are purified for at least 48 hours. The purifying processing technology has the advantages of removing the pollutants thoroughly, making the products high in activity after purifying, being simple and low in investment and the like.

Description

technical field [0001] The invention relates to a processing technology of raw seafood, more specifically, the invention relates to a purification processing technology of raw oysters. Background technique [0002] my country is the country with the largest production of shellfish farming in the world. According to statistics, in 2010, the output of marine shellfish farming reached more than 12 million tons, accounting for 75% of the total amount of marine aquaculture in my country and 23% of the total national fishery output. It has developed into an industry that has an important impact on the national economy. However, due to the biological characteristics of shellfish, it is very easy to transmit harmful pollutants in the seawater environment to humans through the food chain. At present, the government still lacks an effective technical supervision and guarantee system in terms of safety production and sanitation of seawater shellfish. Eating shellfish is likely to cause...

Claims

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Application Information

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IPC IPC(8): A01K61/54A22C29/04
CPCA22C29/043Y02A40/81
Inventor 陈德英
Owner NANTONG HAOLILAI CHEM
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