Method for preparing cod collagen

A technology of collagen and skin collagen, applied in fish protein components, protein food components, food science, etc., can solve the problems of cod skin collagen that have not been seen yet, achieve good swelling effect, short production cycle and good quality Effect

Inactive Publication Date: 2008-08-27
OCEAN UNIV OF CHINA
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Problems solved by technology

[0005] So far, there has been no report on e...

Method used

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Embodiment Construction

[0009] Thaw the frozen fish skin samples, remove non-fish skin impurities, wash them with tap water, chop them into pieces mechanically. Add a certain amount of pretreated fish skin to 4 times the volume of 0.25% hydrochloric acid, soak for 4 hours, and homogenate; increase the volume of the homogenate to 8 times, adjust the pH value to 4.0, heat the water bath to 70 ° C, and continuously stir and pump at this temperature Extract for 6 hours, centrifuge (4000r / min, 15min) and filter; add 2 times the volume of water to the residue, extract at 70°C for 2 hours, and centrifuge and filter; combine the two extracts, concentrate, and spray dry to obtain collagen products.

[0010] The cod skin collagen product of the invention has the advantages of fully utilizing aquatic resources, turning waste into wealth, reducing environmental pollution and improving the quality of collagen. The process is simple and easy to operate, the production cycle is short, the cost is low, and the quali...

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Abstract

A preparation method of cod skin collagen, which is characterized in that the method comprises thawing frozen cod skin sample, removing impurity, washing via tap water and breaking mechanically, adding pretreated cod skin into hydrochloride to be immerged, mixing uniformly, adjusting pH value, bathing in water and centrifugally treating, extracting the left slag via hot water, centrifugally treating, combining extracts, concentrating and drying to obtain collagen product. The invention has short production period, whose product is white or light yellow, has high quality and is soluble in water.

Description

technical field [0001] The invention relates to a method for extracting cod skin collagen with hydrochloric acid. The invention makes full use of aquatic resources, turns waste into treasure, and has a short production cycle for extracting collagen. The product is white or light yellow, of good quality, easily soluble in water, and can be used in the fields of medical care, food and the like. Background technique [0002] As a big fishery country in my country, the total amount of aquatic products is increasing year by year. With the improvement of people's living standards, except for a small amount of fresh aquatic products, most of them are processed into finished or semi-finished products such as fish fillets, surimi, and fish balls. During the processing process, a large amount of waste such as fish heads, fish fins and fish skins will be produced. At present, only a small part of these wastes are processed into low-value products such as fishmeal, and more are discard...

Claims

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Application Information

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IPC IPC(8): C07K2/00A23J1/10A23J1/04
Inventor 李八方赵雪庄永亮赵元晖
Owner OCEAN UNIV OF CHINA
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