Production method of fish skin collagen peptide

Abstract

The invention belongs to the technical field of biochemical engineering and relates to a production method of fish skin collagen peptide, overcoming the technical defects of the prior art of complex process, and the like. The method comprises the following steps of: (A) expansive treatment: putting fish skins generated in a fish processing process into a reaction container, and adding an expansive treatment solution containing hydrochloric acid for expansive treatment, wherein the pH value of the expansive treatment solution is 4.5-5.5; (B) recycling dynamic extraction: putting a product after the expansive treatment into an extracting kettle, adding water and heating for carrying out a plurality of times of recycling extracting treatment, wherein the heating temperature is risen along with the increase of the extracting numbers of times; (C) purification: filtering and purifying the extractive; and (D) finished production drying: carrying out spray drying on the purified product to prepare the fish skin collagen peptide. The fish skin collagen peptide has the advantages of simple and reasonable process, sufficient utilization of waste fish skins as raw materials, good product solubility, realization of solubility in normal-temperature water and no foreign and bitter taste and can be widely applied to food, cosmetics and beverage as an additive.

Description

technical field [0001] The invention belongs to the technical field of biochemical industry, and in particular relates to a production method of fish skin collagen peptide. Background technique [0002] A large amount of fish skin is produced in the process of fish product processing, which contains a large amount of fish skin protein peptide. If it is discarded directly, it will cause waste. For this reason, people have carried out long-term exploration, have proposed the technical scheme that utilizes fish skin as raw material to extract protein peptide. For example, the Chinese patent literature discloses a process [Application No.: 200410024145.1] for producing collagen peptides from fish skin. It uses fish skin as an extraction material, and first washes the fish skin with water and soaks it in dilute alkaline water to remove it. The miscellaneous proteins are dissolved in acetic acid aqueous solution and then hydrolyzed with enzymes to form small molecule peptides. Af...

AI Technical Summary

Problems solved by technology

But there are still deficiencies: 1. The processing process is relatively complicated, the operation process is cumbersome, and it is difficult to implement

2. The processing cost is high, the economy is poor, and the processing process is easy to cause environmental pollution