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Preparation method and application of endogenous formaldehyde removing agent for shredded squid

A formaldehyde scavenger, endogenous technology, applied in the field of preparation of endogenous formaldehyde scavenger in squid shreds, can solve the problems of sensory impact, high raw material cost, easy oxidation, etc., to reduce damage, inhibit formaldehyde production, formaldehyde The effect of content reduction

Active Publication Date: 2014-12-17
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of this kind of formaldehyde scavenger is complicated, high temperature is required in the production process, and energy consumption is high, and diethylenetriamine and N,N-dimethylformamide are used as reactants, and these two substances are Toxic substances, cannot be used in food
CN201010527705.0 discloses a compound formaldehyde inhibitor of squid products and its application method. The formaldehyde inhibitor is a compound of polyphenolic compound and soluble calcium salt, which is applied to squid products as a formaldehyde scavenger. The formaldehyde scavenger The main component is tea polyphenols, the cost of raw materials is relatively high, and tea polyphenols are brown and easy to oxidize, so the color of squid products will be affected to a certain extent during the treatment process, and the processed squid products are generally darker in color. affect the senses of eating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1), preparation of gelatin hydrolyzate

[0021] Add gelatin to water to make a gelatin aqueous solution with a mass fraction (w / w) of 15%, add 1% trypsin (gelatin dry weight), adjust the pH value to 7 with sodium hydroxide, and hydrolyze at a temperature of 30°C for 6 hours. Then heat up to 90°C, keep warm for 5min, and filter to obtain gelatin hydrolyzate;

[0022] (2) Preparation of squid formaldehyde remover

[0023] adding gelatin hydrolyzate, resveratrol and casein into water to prepare formaldehyde scavenger solution with gelatin hydrolyzate content of 2wt‰, resveratrol content of 1wt‰ and casein content of 1wt‰;

[0024] (3) Remove the head, skin and viscera of the squid, clean it and cut it into squid slices with a thickness of ≤1cm;

[0025] (4) According to the mass ratio of squid slices and formaldehyde scavenger solution of 1:2, soak the squid slices in the formaldehyde scavenger solution. During the soaking process, the water temperature is controlled at...

Embodiment 2

[0030] (1), preparation of gelatin hydrolyzate

[0031] Add gelatin to water to form a gelatin aqueous solution with a mass fraction (w / w) of 25%, add 0.8% trypsin (gelatin dry weight), adjust the pH value to 8.0 with sodium hydroxide, and hydrolyze at 45°C for 5 hours. Then raise the temperature to 90°C, keep it for 5 minutes, and filter to obtain the gelatin hydrolyzate;

[0032] (2) Preparation of squid formaldehyde remover

[0033] adding gelatin hydrolyzate, resveratrol and casein into water to prepare formaldehyde scavenger solution with gelatin hydrolyzate content of 5wt‰, resveratrol content of 0.5wt‰ and casein content of 2wt‰;

[0034] (3) Remove the head, skin and viscera of the squid, clean it and cut it into squid slices with a thickness of ≤1cm;

[0035] (4) According to the mass ratio of squid slices and formaldehyde scavenger solution of 1:3, soak the squid slices in the formaldehyde scavenger solution. During the soaking process, the water temperature is con...

Embodiment 3

[0040] (1), preparation of gelatin hydrolyzate

[0041] Add gelatin to water to make a gelatin aqueous solution with a mass fraction (w / w) of 30%, add 0.2% trypsin (gelatin dry weight), adjust the pH value to 8.5 with sodium hydroxide, hydrolyze at 50°C for 3 hours, and then Raise the temperature to 90°C, keep it for 5 minutes, and filter to obtain the gelatin hydrolyzate;

[0042] (2) Preparation of squid formaldehyde remover

[0043] adding gelatin hydrolyzate, resveratrol and casein into water to prepare formaldehyde scavenger solution with gelatin hydrolyzate content of 20wt‰, resveratrol content of 2wt‰ and casein content of 0.5wt‰;

[0044] (3) Remove the head, skin and viscera of the squid, clean it and cut it into squid slices with a thickness of ≤1cm. The slicing process is conducive to the penetration of formaldehyde scavenger;

[0045](4) According to the mass ratio of squid slices and formaldehyde scavenger solution of 1:4, soak the squid meat bubbles in the for...

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Abstract

A preparation method and an application of an endogenous formaldehyde removing agent for shredded squids. The preparation method includes following steps: preparing a gelatin aqueous solution by adding gelatin to water, adding pancreatin, adjusting a pH value with sodium hydroxide, performing a hydrolysis reaction, heating the solution to 90 DEG C, maintaining the temperature to be constant, performing filtration to obtain a hydrolysate of the gelatin, and adding the hydrolysate of the gelatin, resveratrol and casein to water to obtain the formaldehyde removing agent. The application of the formaldehyde removing agent includes following steps: cutting squids into squid pieces, soaking the squid pieces in the formaldehyde removing agent for 6-14 hours, performing steaming and flavoring processes to the soaked squid pieces, drying the squid pieces until a moisture content is 38-42%, and storing the dried squid pieces in a refrigeration storeroom to obtain a semi-finished product of the squids. The method and the application are advantaged in that the formaldehyde removing agent is safe and effective to use, is simple in treatment method, is low in cost, has a good formaldehyde removing effect on formaldehyde in the squibs, can inhibit generation of endogenous formaldehyde, and is free of influence on sense organ of the squib after treatment.

Description

technical field [0001] The invention relates to the field of seafood processing, in particular to a preparation method and application of an endogenous formaldehyde scavenger in shredded squid. Background technique [0002] Formaldehyde is a highly volatile organic compound, which is determined by the World Health Organization as a carcinogenic and teratogenic substance. It is a recognized source of allergies and one of the potential strong mutagens. Long-term exposure to low-concentration formaldehyde can cause damage to the nervous system, immune system, respiratory system and liver, and symptoms such as dizziness, headache, lethargy, loss of appetite, and vision loss may occur. Many foods contain endogenous formaldehyde. Studies have shown that the precursor of endogenous formaldehyde in aquatic products squid is mainly trimethylamine oxide (TMAO). Under non-enzymatic action, especially under high temperature, the decomposition of TMAO in squid can produce Formaldehyde, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/015A23L1/333A23L5/20A23L17/50
CPCA23L5/27A23L17/60A23V2002/00A23V2250/502A23V2250/21
Inventor 励建荣仪淑敏杨立平李学鹏李婷婷
Owner BOHAI UNIV
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