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Preparation method of low-fluorine low-allergic antarctic krill antioxidant peptide powder

A technology of Antarctic krill powder and Antarctic krill, which is applied in the field of preparation of Antarctic krill antioxidant peptide powder, can solve problems such as being in the blank period, achieve high-value utilization, simple and efficient methods, and reduce fluorine content Effect

Pending Publication Date: 2019-11-15
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic research lags behind, but after the discovery of antioxidant peptides, research on it has been carried out frequently at home and abroad. The main extraction materials range from plants to animals. Peptide research is still in a blank period

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for preparing an Antarctic krill antioxidant peptide powder with low fluorine and hypoallergenicity, comprising the following steps:

[0037] S1. Pretreatment: Boil the shrimp in an electric heating jacketed pot, put the Antarctic krill into the water after boiling, take out after heating at 95°C for 7 minutes, centrifuge at 14000r / min for 8min for dehydration, and dry in a blast oven at 45°C to contain The water content is 2%, and the Antarctic krill powder of 20 meshes is obtained by crushing; the fluorine content of the Antarctic krill powder is 1130 mg / kg, and the fluorine content of the Antarctic krill powder is 800 mg / kg;

[0038] S2, degreasing: Add n-hexane / ethanol mixed solution (the volume ratio of n-hexane to ethanol is 2:1) to the Antarctic krill powder described in step S1, the Antarctic krill powder and the n-hexane / ethanol mixed solution The volume ratio is 1:2, stirred at 50°C and 200r / min for 4h, poured off the supernatant, and took the precipi...

Embodiment 2

[0043] A method for preparing an Antarctic krill antioxidant peptide powder with low fluorine and hypoallergenicity, comprising the following steps:

[0044] S1. Pretreatment: Boil the shrimp in an electric heating jacketed pot, put the Antarctic krill into the water after boiling, remove after heating at 96°C for 6.5 minutes, centrifuge at 14000r / min for 9min to dehydrate, and dry in a forced-air oven at 46°C When the water content is 3%, the Antarctic krill powder of 25 meshes is obtained by crushing; the fluorine content of the Antarctic krill powder is 1250 mg / kg, and the fluorine content of the Antarctic krill powder is 900 mg / kg;

[0045] S2, degreasing: Add n-hexane / ethanol mixed solution (the volume ratio of n-hexane and ethanol is 3:1) to the Antarctic krill powder described in step S1, the Antarctic krill powder and the n-hexane / ethanol mixed solution The volume ratio is 1:3, stirred at 50°C and 300r / min for 4.5h, poured off the supernatant, and got the precipitate; ...

Embodiment 3

[0050] A method for preparing an Antarctic krill antioxidant peptide powder with low fluorine and hypoallergenicity, comprising the following steps:

[0051] S1. Pretreatment: Boil shrimp in an electric heating jacketed pot, put Antarctic krill into the water after boiling, remove after heating at 97°C for 6 minutes, centrifuge at 14000r / min for 10min for dehydration, and dry in a blast oven at 49°C until The water content is 4%, and the Antarctic krill powder of 30 meshes is obtained by crushing; the fluorine content of the Antarctic krill is 1560 mg / kg, and the fluorine content of the Antarctic krill powder is 1000 mg / kg;

[0052]S2, degreasing: Add n-hexane / ethanol mixed solution (the volume ratio of n-hexane to ethanol is 4:1) to the Antarctic krill powder described in step S1, the Antarctic krill powder and the n-hexane / ethanol mixed solution The volume ratio is 1:5, stirred at 50°C and 400r / min for 5h, poured off the supernatant, and took the precipitate; added 5 times t...

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Abstract

The invention discloses a preparation method of low-fluorine low-allergic antarctic krill antioxidant peptide powder, and belongs to the technical field of deep processing of agricultural and sidelineproducts and comprehensive utilization of byproducts thereof. The preparation method comprises the steps that antarctic krill serves as the raw material and is sequentially subjected to pretreatment,degreasing, thermal denaturation, enzymolysis, ultrafiltration and freeze-drying to prepare the low-fluorine low-allergic antarctic krill antioxidant peptide powder with the molecular weight of 5 KDaor below. The method is simple and efficient, solves the problem of allergy of antarctic krill, can meet requirements of large-scale production better, and has relatively good development and application value when serving as an additive of antioxidant food; the antioxidant peptide prepared through the method is good in antioxidant activity, low in fluorine content, free of shrimp fishy smell andcapable of improving the high-value utilization of antarctic krill powder, and can be applied to the field of health care products or functional food.

Description

technical field [0001] The invention belongs to the technical field of deep processing of agricultural and sideline products and comprehensive utilization of by-products thereof, and relates to a preparation method of Antarctic krill antioxidant peptide powder with low fluorine and low allergy. Background technique [0002] Antarctic krill (scientific name: EupHausia superba) has the typical characteristics of high protein and low fat, and its mineral content is rich, and the protein hydrolyzate is rich in amino acids, including 8 essential amino acids required by the human body. Antarctic krill is not only rich in nutrients, but also contains a variety of active substances, such as protein-digesting enzymes, sclerocytin amino acids, etc., so it has a variety of medicinal functions. [0003] Compared with frozen shrimp bricks, Antarctic krill meal has the advantages of low circulation cost and convenient storage. Antarctic krill antioxidant peptide powder is a natural pepti...

Claims

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Application Information

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IPC IPC(8): C12P21/06C07K1/34A23J1/04
CPCC12P21/06C07K1/34A23J1/04
Inventor 林松毅郑景如孙娜姜鹏飞孙馨娉
Owner DALIAN POLYTECHNIC UNIVERSITY
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