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Method for producing highly active surimi and product antifreeze by enzymatic hydrolysis of silver carp fish scales

An antifreeze and high activity technology, applied in the field of food processing, can solve the problems affecting the taste, health and nutritional value of surimi and its products, high sweetness and calories, so as to maintain the flavor of surimi, reduce production costs and reduce emissions Effect

Active Publication Date: 2022-07-19
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the existing industrial surimi antifreeze agent which is a mixture of 4% sucrose and 4% sorbitol, which has high sweetness and calories, which affects the taste and health and nutritional value of surimi and its products, and proposes A method for enzymatically hydrolyzing silver carp fish scales to produce highly active surimi and product antifreeze

Method used

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Experimental program
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Effect test

Embodiment 1

[0034] The method for producing highly active surimi and product antifreeze by said enzymolysis of silver carp scales comprises the following steps:

[0035] (1) Fish scale collection: collect the by-product fish scales of silver carp processing, and wash them with water;

[0036] (2) Decalcification: decalcification of fish scales in hydrochloric acid with a concentration of 3.8% by volume at <10°C for 32 hours, and after decalcification, the fish scales are washed with water and drained to obtain decalcified fish scales; The solid-liquid ratio of hydrochloric acid is 1:1.2, and the unit of the solid-liquid ratio is g / mL;

[0037] (3) Mincing: Mincing the decalcified fish scales into minced fish scales in a mincer, keeping the temperature of the system <10°C;

[0038](4) Enzymatic hydrolysis of minced fish scales with neutral composite protease: The minced fish scales are catalyzed by neutral composite protease in a biological enzyme reactor; the enzymatic hydrolysis conditi...

Embodiment 2

[0047] The method for producing highly active surimi and product antifreeze by said enzymolysis of silver carp scales comprises the following steps:

[0048] (1) Fish scale collection: collect the by-product fish scales of silver carp processing, and wash them with water;

[0049] (2) Decalcification: decalcification of fish scales in hydrochloric acid with a concentration of 3.5% by volume at <10°C for 33 hours. After decalcification, the fish scales are washed with water and drained to obtain decalcified fish scales; The solid-liquid ratio of hydrochloric acid is 1:1.3, and the unit of the solid-liquid ratio is g / mL;

[0050] (3) Mincing: Mincing the decalcified fish scales into minced fish scales in a mincer, keeping the temperature of the system <10°C;

[0051] (4) Enzymatic hydrolysis of minced fish scales with neutral composite protease: The minced fish scales are catalyzed by neutral composite protease in a biological enzyme reactor; the enzymatic hydrolysis conditions...

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Abstract

The invention discloses a method for enzymatically hydrolyzing silver carp fish scales to produce high-activity surimi and antifreezing agents for products. The method comprises: fish scales → washing in ice water → decalcification → washing and draining → mincing → controlled enzymatic hydrolysis by neutral composite protease → heating to inactivate enzymes → centrifugation to obtain supernatant → concentration → ultrafiltration membrane separation and purification → drying. The antifreeze agent produced by the invention is a complex of various peptides and free amino acids, which can well maintain the original flavor of surimi and its products, and avoid the sweetness and calorie value brought by commercial antifreeze agents; in addition, Compared with the antifreeze peptides obtained by multi-step separation and purification in the existing patents or documents, the process obtained by the present invention is simple, low in cost, suitable for industrial production, and has good economic and social benefits.

Description

technical field [0001] The invention relates to the field of food processing, in particular to a method for enzymatically hydrolyzing silver carp fish scales to produce highly active surimi and antifreeze for products. [0002] technical background [0003] Fish scales are the deformation of the dermis layer of the fish skin, accounting for 2% to 5% of the weight of the fish body. Nutritionists have discovered in recent years that fish scales are rich in protein, fat and vitamins, as well as iron, zinc, calcium and various trace elements necessary for the human body, as well as colloid. The gelatinous substances of fish scales are mainly deposited between the underlying bone fibrous plates. The treated fish scales are looser, and the collagen contained is easily hydrolyzed into gelatin. my country is a big country in aquatic products processing, and a large amount of leftovers are used for processing fish meal, which cannot improve its comprehensive utilization value. The pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P21/06C12P13/04C07K1/34C07K1/14C07K1/36
Inventor 李向红刘永乐袁承志陈添翼黄璜王发祥俞健王建辉
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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