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A production method and device for reducing sulfite residues in frozen shrimp

A production method and technology of sulfite, applied in the field of production and equipment for reducing sulfite residues in frozen shrimp, can solve the problems of low desulfurization efficiency, poor product quality, large water consumption, etc., and achieve convenient operation and low residual content , good quality effect

Active Publication Date: 2022-01-14
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to develop a high-efficiency, safe and convenient method for removing sulfite from sea-caught shrimp for the problems of large water consumption, low desulfurization efficiency, and poor product quality when removing sulfite from existing frozen shrimps. new technology and corresponding equipment

Method used

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  • A production method and device for reducing sulfite residues in frozen shrimp
  • A production method and device for reducing sulfite residues in frozen shrimp
  • A production method and device for reducing sulfite residues in frozen shrimp

Examples

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Effect test

Embodiment 1

[0049] 0.2% food-grade sodium caseinate and 0.05% food-grade calcium chloride mixed solution (dissolved in 2°C ice water), prepared with desulfurization liquid batching tank, open the first valve, 1:3 (shrimp and mixed solution ratio , W / W) desulfurization mixed solution is pumped into the desulfurization treatment tank from the bottom screen, close the first valve → 500kg sea-caught shrimp raw materials → remove the head, shell, and intestine → put the pumped liquid from the feeding port The desulfurization treatment tank → open the desulfurization liquid circulation treatment for 10 minutes → open the third valve, drain the mixed solution to the waste water treatment pipeline → open the second valve, and rinse the shrimp on the sieve plate with pure water (2 times the water volume, W / W), close the second valve, the eluent flows into the waste water treatment pipeline through the lower part → drain for 10 minutes → artificially discharge the shrimp → take a sample, measure th...

Embodiment 2

[0052] 0.2% food-grade sodium caseinate and 0.1% food-grade calcium chloride mixed solution (dissolved in 2°C ice water), prepared with a desulfurization liquid batching tank, open the first valve, 1:4 (shrimp to mixed solution ratio , W / W) desulfurization mixed solution is pumped into the desulfurization treatment tank from the bottom screen, close the first valve → 500kg sea-caught shrimp raw materials → remove the head, shell, and intestine → put the pumped liquid from the feeding port The desulfurization treatment tank → open the desulfurization liquid circulation treatment for 5 minutes → open the third valve, drain the mixed solution to the waste water treatment pipeline → open the second valve, and rinse the shrimp on the sieve plate with pure water (2 times the water volume, W / W), close the second valve, the eluent flows into the waste water treatment pipeline through the lower part → drain for 10 minutes → artificially discharge the shrimp → take a sample, measure the...

Embodiment 3

[0055] 0.3% food-grade sodium caseinate and 0.1% food-grade calcium chloride mixed solution (dissolved in 2°C ice water), prepared with desulfurization liquid batching tank, open the first valve, 1:5 (the ratio of shrimp to mixed solution , W / W) desulfurization mixed solution is pumped into the desulfurization treatment tank from the bottom screen, close the first valve → 500kg sea-caught shrimp raw materials → remove the head, shell, and intestine → put the pumped liquid from the feeding port The desulfurization treatment tank → open the desulfurization liquid circulation treatment for 10 minutes → open the third valve, drain the mixed solution to the waste water treatment pipeline → open the second valve, and rinse the shrimp on the sieve plate with pure water (3 times the water volume, W / W), close the second valve, the eluent flows into the waste water treatment pipeline through the lower part → drain for 15min → artificially discharge the shrimp → take a sample, measure th...

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Abstract

The invention provides a production method and device for reducing sulfite residues in frozen shrimp products. The invention improves the cleaning link in the production process of frozen shrimp products, and creatively uses two kinds of food, sodium caseinate and calcium chloride. Additives and sulfur dioxide are competitively combined to remove the mechanism, and the corresponding production process and equipment have been developed. After application, it is found that not only the effect of sulfite removal is good, but also the safety and product quality are good, and it is also water-saving, labor-saving, easy to operate, Suitable for large-scale production and other advantages.

Description

(1) Technical field [0001] The invention relates to a production method and device for reducing sulfite residues in frozen shrimp. (2) Background technology [0002] Shrimp is a healthy food with high protein, low sugar and low fat, rich in essential amino acids and many trace elements, and is very popular among consumers. However, shrimps are small in size, high in water content, soft in muscle tissue, vulnerable to bacterial attack, and easy to spoil; in addition, the body contains a large amount of enzymes and tyrosine, which still maintain a certain activity even during the entire food refrigeration and freezing process. Under aerobic conditions, it is easy to be oxidized to produce melanin, and it is difficult to preserve naturally. If the cold chain is interrupted or the temperature fluctuates during loading and unloading, it is more likely to cause the head and tail of the shrimp to turn black, and even the shrimp body to brown, spoil and stink. Seriously affect the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L17/40A23L5/20
CPCA23L5/27A23L17/40
Inventor 杨开周城蔡铭孙培龙
Owner ZHEJIANG UNIV OF TECH
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