Minced euphausia superba rich in phospholipid and preparing method thereof

An Antarctic krill and phospholipid-enriching technology, which is applied in food science and other fields, can solve the problems of excessive fluorine and achieve high nutritional value, good feasibility, and high added value

Active Publication Date: 2016-03-30
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Antarctic krill has excellent protein and lipids, and due to the characteristics of physiological metabolism, a large amount of fluorine is enriched in the shrimp shell, which will migrate to the muscle during thawing or spoilage, resulting in excessive fluorine in the final product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method for Antarctic krill minced shrimp, comprising the following steps:

[0030] The first step is to quickly thaw the frozen Antarctic krill pieces with a tunnel-type microwave thawing machine. After draining, use a meat harvester to collect shrimp meat; the equipment used is a tunnel-type microwave thawing machine with a frequency of 915MHz;

[0031] In the second step, add 1 times the mass of water to the shrimp meat, mix evenly and pulverize it into a 180-mesh slurry through a wet-process ultrafine pulverizer;

[0032] In the third step, adjust the pH value of the slurry in the second step to 8 with sodium hydroxide, and adjust its stirring temperature to 45° C.;

[0033] The fourth step is to add 0.1% trypsin to the material, stir, and cooperate with the Antarctic krill autolytic enzyme system to hydrolyze the material, and the hydrolysis lasts for 5 hours;

[0034] In the fifth step, the material after the hydrolysis in the fourth step is centrifu...

Embodiment 2

[0040] A preparation method for Antarctic krill minced shrimp, comprising the following steps:

[0041] The first step is to quickly thaw the frozen Antarctic krill pieces with a tunnel-type microwave thawing machine. After draining, use a meat harvester to collect shrimp meat; the equipment used is a tunnel-type microwave thawing machine with a frequency of 915MHz;

[0042] In the second step, add 2 times the quality of water to the shrimp meat, mix evenly and pulverize it into a 150-mesh slurry through a wet-process ultrafine pulverizer;

[0043] In the third step, adjust the pH value of the slurry in the second step to 7.5 with sodium hydroxide and potassium hydroxide, and adjust its stirring temperature to 50°C;

[0044] The fourth step is to add 0.2% alkaline protease to the material, stir, and cooperate with the Antarctic krill autolytic enzyme system to hydrolyze the material, and the hydrolysis lasts for 3 hours;

[0045] In the fifth step, the material after the hydr...

Embodiment 3

[0051] A preparation method for Antarctic krill minced shrimp, comprising the following steps:

[0052] The first step is to quickly thaw the frozen Antarctic krill pieces with a tunnel-type microwave thawing machine. After draining, use a meat harvester to collect shrimp meat; the equipment used is a tunnel-type microwave thawing machine with a frequency of 915MHz;

[0053] In the second step, add 3 times the mass of water to the shrimp meat, mix evenly and pulverize into a 120-mesh slurry through a wet-process ultrafine pulverizer;

[0054] In the third step, adjust the pH value of the slurry in the second step to 3 with phosphoric acid, and adjust its stirring temperature to 37°C;

[0055] In the fourth step, add 0.25% pepsin to the material, stir, and hydrolyze for 2 hours;

[0056] In the fifth step, the material after the hydrolysis in the fourth step is centrifuged with a centrifugal force of 5000×g, and the centrifugation time is 20 minutes. collect sediment;

[005...

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PUM

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Abstract

The invention belongs to the field of aquatic food protein raw material development, and particularly relates to minced euphausia superba rich in phospholipid and a preparing method thereof. The preparing method basically comprises the steps of meat separation, water adding and mincing, pH value and temperature adjustment, protease hydrolysis, centrifugal dewatering, water adding for adjusting pH value to be neutral, and centrifugation, collection and precipitation. The lipid content of the obtained product is 40-50 / 100 g dry basis, the phospholipid ratio reaches 38-45%, lipid enrichment can be achieved effectively, and nutritive value is quite high. The ratio of DHA and EPA in fatty acid is over 32%, and the content of dry basis protein is 45-50 g / 100 g dry basis. Safety performance is high, and fluorine content is lower than 100 mg / Kg dry basis. Enrichment of lipid, especially phospholipid in euphausia superba protein is achieved, the content of free fatty acid is reduced to the minimum, simultaneous preparation and efficient utilization of euphausia superba protein and lipid are achieved, and processing can be conducted on the land and on a ship.

Description

technical field [0001] The invention belongs to the field of the development of protein raw materials of aquatic products, and in particular relates to an Antarctic krill minced shrimp enriched in phospholipids and a production method thereof. Background technique [0002] Antarctic krill contains about 4% fat on average, and the proportion of phospholipids, especially DHA-phospholipids, is relatively high. Relevant studies have shown that DHA-phospholipids have good effects on the growth of the nervous system, especially the brain development of infants, the maintenance of cardiovascular health, the regulation of anti-tumor activity and immune function, and the absorption efficiency in the human body is relatively high. At the same time, Antarctic krill contains 11.9-15.4% protein, which contains all the essential amino acids for the human body, and its biological potency is higher than that of milk protein and general meat protein. In the previous processing of Antarctic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L17/40
Inventor 薛长湖尹利昂徐杰王玉明姜晓明田利利
Owner OCEAN UNIV OF CHINA
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