Fish skin collagen membrane separation technology

Collagen is a biopolymer synthesized by animal fibroblasts, which is a white, opaque, unbranched fibrous protein. Currently, collagen in the world is mainly extracted from fish. Fish skin collagen is made from sea fish skin as raw material, using advanced biotechnology to remove fat impurities and other impurities from fish skin, and obtain high-purity fish skin collagen. The traditional method of extracting collagen has a long production cycle and incomplete removal of impurities from the enzymatic solution, which affects the quality of collagen. The application of membrane separation technology in the extraction of fish skin protein can save costs and production cycle.

With years of industry experience and its own advantages, Shengchuan adopts membrane separation technology to effectively separate and concentrate fish skin collagen. The specific process is as follows:

Enzymatic hydrolysate → fine filtration → primary membrane filtration → secondary membrane filtration → tertiary membrane filtration → spray drying (or freezing)

1. Primary membrane filtration mainly removes impurities such as activated carbon, macromolecules, suspended solids, etc. The permeate is clear and transparent with good color;

2. Secondary membrane filtration is mainly used for molecular weight classification of fish skin collagen peptides. According to different needs, the vast majority of fish skin collagen peptides can be concentrated in a certain molecular weight range, which is easier to absorb;

3. Three stage membrane filtration is used for desalination and concentration of products. At room temperature, it turns fish skin collagen peptides into low salt mother liquor and can simultaneously concentrate collagen peptides without any impact on the product. It also solves the problem of the impact of evaporation concentration on fish skin collagen peptides.

Advantages of fish skin collagen membrane separation technology

1. Membrane separation is a purely physical process that does not undergo chemical reactions and does not introduce new impurities;

2. System cross flow operation design, no need to add filter aids, completely solves the problem of pollution blockage;

3. Molecular level filtration can completely remove impurities such as large molecules that affect product quality from the raw material liquid, resulting in stable product quality;

4. At the same time as membrane concentration dehydration, small molecule inorganic salts are removed to reduce bitterness and pesticide residue, resulting in high product purity;

5. The automatic PLC design of the separation equipment effectively reduces labor intensity, and the membrane separation process is carried out in a closed container, which can achieve clean production very well;

6. Made of 304 or 316L stainless steel material, in compliance with QS and other certification standards.