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Method for preparing antarctic krill enzymatic hydrolysate through subcritical extraction and enzymolysis

An Antarctic krill and enzymatic hydrolysis solution technology, which is applied in the fields of application, fish protein composition, fat oil/fat production, etc., can solve the problems of low added value of products, bitter taste of enzymatic hydrolysis solution, etc., and achieve optimal enzymatic hydrolysis effect , reduce generation, increase added value effect

Inactive Publication Date: 2020-06-05
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the by-products of Antarctic krill after the above-mentioned extraction process are simply processed into animal or aquatic feed, and the added value of the product is low. Further in-depth research has not been carried out on the processed Antarctic krill to improve the processing efficiency and quality of the product. Product added value
On the other hand, poor control of single-enzyme hydrolysis time and hydrolysis degree will lead to bitter taste of the enzymatic solution. Therefore, the rational use of enzymatic hydrolysis technology is also a key issue to increase the added value of Antarctic krill

Method used

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  • Method for preparing antarctic krill enzymatic hydrolysate through subcritical extraction and enzymolysis
  • Method for preparing antarctic krill enzymatic hydrolysate through subcritical extraction and enzymolysis
  • Method for preparing antarctic krill enzymatic hydrolysate through subcritical extraction and enzymolysis

Examples

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Effect test

Embodiment example 1

[0030] The extraction device in the present invention includes an extraction part and an extraction agent removal part, and its structure is as shown in the drawings of the description. figure 1 shown.

[0031] refer to figure 2 As shown, the subcritical extraction coupling step-by-step enzymatic hydrolysis technology is a preparation method for preparing Antarctic krill fresh and sweet enzymatic hydrolyzate, and the method includes the following steps.

[0032] (1) Pretreatment of raw materials: thaw the frozen Antarctic krill, stir and chop it into mince with a mixer, add 0.35% of the quality of Antarctic krill polyglycerol fatty acid ester and diacetyl tartaric acid mono-diglyceride mass ratio is 4: 5 mixed surfactants.

[0033] (2) Loading: put the pretreated Antarctic krill into a support covered with a nylon mesh sieve, seal and place it in the extraction tank of the extraction equipment, and use a nylon mesh sieve of 80 mesh.

[0034] (3) Extraction: start the extra...

Embodiment example 2

[0040] The extraction device in the present invention includes an extraction part and an extraction agent removal part, and its structure is as shown in the accompanying drawings figure 1 shown.

[0041] refer to figure 2 The subcritical extraction coupled step-by-step enzymatic hydrolysis technology is a method for preparing fresh and sweet enzymatic hydrolyzate of Antarctic krill. The method includes the following steps.

[0042] (1) Pretreatment of raw materials: thaw the frozen Antarctic krill, stir and chop it into mince with a blender, add 0.5% of the quality of Antarctic krill polyglycerol fatty acid ester and diacetyl tartaric acid mono-diglyceride with a mass ratio of 7: 9 mixed surfactants.

[0043] (2) Loading: put the pretreated Antarctic krill into a support covered with a nylon mesh sieve, seal and place it in the extraction tank of the extraction equipment, and use a 100-mesh nylon mesh.

[0044] (3) Extraction: start the extraction device to extract Antarct...

Embodiment 3

[0050] The extraction device in the present invention includes an extraction part and an extraction agent removal part, and its structure is as shown in the drawings of the description. figure 1 shown.

[0051] refer to figure 2 As shown, the subcritical extraction coupling step-by-step enzymatic hydrolysis technology is a preparation method for preparing Antarctic krill fresh and sweet enzymatic hydrolyzate, and the method includes the following steps.

[0052] (1) Pretreatment of raw materials: thaw the frozen Antarctic krill, stir and chop it into minced form with a blender, and add 0.35% by mass of Antarctic krill as surfactant polyglycerol fatty acid ester.

[0053] (2) Loading: put the pretreated Antarctic krill into a support covered with a nylon mesh sieve, seal and place it in the extraction tank of the extraction equipment, and use a 200-mesh nylon mesh.

[0054] (3) Extraction: start the extraction device to extract Antarctic krill, the extractant used is a compo...

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Abstract

The invention discloses a method for preparing antarctic krill enzymatic hydrolysate through subcritical extraction and enzymolysis. Frozen antarctic krill is used as raw materials. The method mainlycomprises the steps of pretreating the raw materials, performing extraction, collecting extraction products, performing multiplestep continuous enzymolysis and the like. According to the method, the subcritical degreasing technique is combined with a multiplestep enzymolysis technique, degreasing and enzymolysis of the antarctic krill are realized at the same time, and the obtained antarctic krillenzymatic hydrolysate is high in nutrient value and good in mouth feel. The entire process is non-toxic, harmless, free from pollution, and low in operation cost, and industrial mass production can be realized.

Description

technical field [0001] The invention belongs to the technical field of food processing and relates to the processing and utilization of active peptides, in particular to a method for preparing fresh and sweet Antarctic krill enzymatic hydrolyzate with high nutritional value by combining subcritical extraction technology and multi-stage enzymatic hydrolysis. Background technique [0002] The biological resources of Antarctic krill are about 650 million to 1 billion tons, which is the largest single species of catching biological resources in the world's oceans. Because of its huge biomass and potential fishery resource value, as well as its special status in the Antarctic ecosystem, it has attracted increasing attention. Antarctic krill not only has huge resources, but also has high nutritional value, with high protein, low fat, rich mineral elements, DHA and EPA. At the same time, it is also the source of heat-sensitive substances such as astaxanthin, phospholipids, and chi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J1/04A23J3/34C11B1/10
CPCA23J1/04A23J3/341C11B1/10
Inventor 刘建华余晓婉张庆春韩眺邵天伦何潇庭丁玉庭蔡燕萍吕飞刘书来
Owner ZHEJIANG UNIV OF TECH
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