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IQF (individual quick freezing) raw head-on prawn preservative and application thereof

A preservative, a technology for prawns, applied in the direction of preservation of meat/fish by freezing/cooling, preservation of meat/fish with chemicals, etc., can solve problems such as unfavorable industrial continuous production, can not solve problems such as blackening of prawns, and achieve short processing time , Large batch size, the effect of enhancing anti-fracture performance

Inactive Publication Date: 2016-03-16
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another example is the Chinese patent application number 200810207223.X, which discloses a natural antifreeze agent for frozen shrimps, which uses sodium alginate ice solution as an antifreeze agent, and wraps shrimp frozen to -18°C in ice. Cloth treatment, this method also only achieves the purpose of water retention for frozen shrimp, and cannot solve the problem of blackening of single-frozen raw prawns with head
Another example is the Chinese patent application number 201410310790.3, which discloses a method for freezing prawns and a cryopreservation agent for prawns. It introduces the use of cryopreservation agent A (bamboo vinegar) and cryopreservation agent B (sucrose, tea Polyphenols, Nisin, Trehalose, Glycerin, Mannitol, Chitosan) were applied and then quick-frozen to achieve the purpose of keeping the shrimp fresh. However, the two cryoprotectants should be applied separately in order, and the Standing for 5-20 minutes is not conducive to industrial continuous production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preservative formula for single-frozen raw prawns, prepared from the following raw material components and weight ratios: 20 parts of trehalose, 0.5 parts of bamboo leaf antioxidant, 1 part of citric acid, and 72.6 parts of white fungus water extract .

[0025] (1) Pretreatment: After the prawns are inactivated by crushing ice shock, manual selection is carried out to remove the gravel, seaweed and other dirt in the raw shrimp, and the headless prawns are picked out for further processing;

[0026] (2) Ozone water disinfection: Place the selected prawns in a washing machine and use flowing ozone water to clean and disinfect. The concentration of flowing ozone water is controlled at 3ml / L, the water temperature is controlled at 7°C, and the cleaning and disinfection time is controlled at 8 minutes.

[0027] (3) Preservation treatment: After the cleaned and disinfected prawns are automatically transported by the conveyor belt and drained of clean water, they enter the s...

Embodiment 2

[0032] A fresh-keeping agent for single-frozen raw prawns, prepared from the following raw material components and weight ratios: 25 parts of trehalose, 0.8 parts of bamboo leaf antioxidant, 1.6 parts of citric acid, and 78.5 parts of white fungus water extract.

[0033] (1) Pretreatment: After the prawns are inactivated by crushing ice shock, manual selection is carried out to remove the gravel, seaweed and other dirt in the raw shrimp, and the headless prawns are picked out for further processing;

[0034] (2) Ozone water disinfection: place the selected prawns in a washing machine and use flowing ozone water to clean and disinfect. The concentration of flowing ozone water is controlled at 5ml / L, the water temperature is controlled at 5°C, and the cleaning and disinfection time is controlled at 10 minutes.

[0035] (3) Preservation treatment: After the cleaned and disinfected prawns are automatically transported by the conveyor belt and drained of clean water, they enter the ...

Embodiment 3

[0040] A fresh-keeping agent for single-frozen raw prawns, prepared from the following raw material components and weight ratios: 23 parts of trehalose, 0.6 parts of bamboo leaf antioxidant, 1.3 parts of citric acid, and 75.3 parts of white fungus water extract.

[0041] (1) Pretreatment: After the prawns are inactivated by crushing ice shock, manual selection is carried out to remove the gravel, seaweed and other dirt in the raw shrimp, and the headless prawns are picked out for further processing;

[0042] (2) Ozone water disinfection: place the selected prawns in a washing machine and use flowing ozone water for cleaning and disinfection. The concentration of flowing ozone water is controlled at 4ml / L, the water temperature is controlled at 3°C, and the cleaning and disinfection time is controlled at 9 minutes.

[0043] (3) Fresh-keeping treatment: The cleaned and disinfected prawns are automatically transported by the conveyor belt and drained of clean water, and then enter...

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PUM

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Abstract

The invention provides an IQF (individual quick freezing) raw head-on prawn preservative and an application thereof. The preservative consists of the following raw materials in parts by weight: 20-25 parts of trehalose, 0.5-0.8 part of antioxidants of bamboo leaves, 1-1.6 parts of citric acid and 72.6-78.5 parts of aqueous extract of tremella. The preservative can effectively maintain the quality of the IQF raw head-on prawn and effectively prevent the problems such as blackening, fat oxidation, drying loss and protein freezing denaturation in the freezing preservation process; and the processing method is applicable to industrial continuous operation.

Description

technical field [0001] The invention relates to a fresh-keeping agent for single-frozen raw prawns and an application thereof, belonging to the technical field of aquatic product processing. Background technique [0002] Shrimp is one of the main farmed shrimps in China, and it is an important export aquatic product. It contains rich nutrients, and the taste produced by the unique taste substances is very consistent with people's best taste. It is delicious and popular. The market has a long standing reputation. At present, my country's shrimp export processing is mainly in the form of freezing, and the product forms include: single-frozen (raw and cooked) prawns, single-frozen (raw and cooked) raw prawns, etc. Among them, the value of single-frozen raw prawns is the highest, but Because during the cryopreservation process of single-frozen raw prawns, in addition to the fat oxidation, dry consumption, and protein freezing denaturation of the shrimp, blackening is prone to oc...

Claims

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Application Information

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IPC IPC(8): A23B4/20A23B4/09
CPCA23B4/09A23B4/20
Inventor 林媛傅海庆
Owner FUJIAN AGRI & FORESTRY UNIV
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