Technique for extracting fish protein ferritin peptide from low value sea water fish and leftover protein

Abstract

The invention discloses a technology for extracting fish protein iron peptide from the a low value seawater fish and its processing tailings. The technology comprises the following steps: grinding the material and adding 2-5 times of water; milling into slurry and regulating the pH value of the slurry to 5-7; adding papain and flavor enzyme according to the vitality ratio 1:1 controlling the enzyme amount at 600-2400IU for hydrolyzing; filtering the enzymatic hydrolyzed liquid to obtain the hydrolysate and regulating its pH value to 6-8; adding 1-5% ferrous chloride solution according to the weight / volume ratio of ultra-filtered hydrolysate : ferrous chloride solution as 50:1 for chelating while stirring continuously; keeping for 15-60 minutes for killing the activity of enzyme; spray drying and obtaining the fish protein iron peptide. The invention can be used as organic iron intensifying agent for food or health product.

Description

technical field [0001] The invention relates to a technology for extracting fish protein iron peptide from a low-value sea fish and its processed head, skin, bone, viscera and other leftover protein, belonging to the field of biotechnology. Background technique [0002] Iron is an essential trace element for the human body. Iron deficiency anemia often occurs due to diet and the human body itself. Although there are many iron supplement products, such as ferrous sulfate, ferrous chloride, ferrous lactate, etc. as iron nutrition Fortifiers are used in food or supplements with unsatisfactory results, which may be due to incorrect or poorly absorbed iron intake or poor bioavailability; iron bioavailability depends on the chemical properties of the element itself Form and content in food, further research has found that ferrous glycinate, ferrous methionine, ferric glycinate and other amino acid iron chelates have good bioavailability, and their unique chemical form can be used ...

AI Technical Summary

Problems solved by technology

[0002] Iron is an essential trace element for the human body. Iron deficiency anemia often occurs due to diet and the human body itself. Although there are many iron supplement products, such as ferrous sulfate, ferrous chloride, ferrous lactate, etc. as iron nutrition Fortifiers are used in food or supplements with unsatisfactory results, which may be due to incorrect or poorly absorbed iron intake or poor bioavailability; iron bioavailability depends on the chemical properties of the element itself Form and content in food, further research has found that ferrous glycinate, ferrous methionine, ferric glycinate and other amino acid iron chelates have good bioavailability, and their unique chemical form can be used in liquid and high-fat food. Carriers are widely used in the feed industry and as food nutritional fortifiers; however, since the discovery of the theory that peptides can be absorbed by the human body as a whole, various bioactive peptides are being discovered continuously, so using the most advanced biotechnology at present, looking for and It is found that organic iron with high bioavailability, effectively solving the difficulty of iron absorption and utilization and the danger of excessive iron in the body, and having slow release characteristics, especially fish protein iron peptide is an effective way to solve human anemia, which is also the significance of the present invention where the

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