Processing of walnut protein peptides and advantages of the applied membrane separation technique

Walnut protein is a good plant protein resource, but there are few studies on it in our country, especially on its protein hydrolysate walnut polypeptide. Walnut polypeptide is a kind of plant protein with multiple physiological functions. Among them, walnut contains very high essential fatty acids, with a protein content of 14.9% and 18 kinds of amino acids. The contents of glutamic acid, aspartic acid and arginine are very high. Walnut peptides contain a large amount of glutamic acid, which is an extremely important amino acid resource in the human brain.

Processing of walnut protein peptides and advantages of the applied membrane separation technique

In the processing process of walnut polypeptide, the molecular cutting membrane is selected to separate and purify the polypeptide after separation, so that the product does not cause qualitative changes when purified. The fading process is used for decolorization, and then the membrane separation technology is used to complete the salt removal, deashing and refining, so as to ensure that the inherent characteristics of raw materials remain unchanged, and overcome the problem of many impurities and dark colors. To enhance the quality of the whole product quality a level. Based on protein, the enzymatic hydrolysis rate was 92 and the recovery rate was 83. Enzymatic hydrolysis is the enzymatic decomposition of the cell wall and cell membrane to improve the biological activity of the product, so as to improve the quality of the product.

Advantages of membrane separation technology

1. Membrane filtration has high precision, which can effectively remove the pigment and residue of macromolecules and facilitate the decolorization of the subsequent membrane.

2, the whole process of concentration is completed under normal temperature, no phase change, no qualitative change, no chemical reaction, no damage to heat-sensitive components, can be a good energy saving.

3. It can remove most of the pigment and debris, reduce the production process and reduce the investment cost of the enterprise.

4, the system cross flow operation design, without adding other filter AIDS, but will not bring new impurities, completely overcome the obstruction and environmental pollution problems.

Walnut peptides prepared by membrane separation technology have better solubility and absorption than proteins, and have obvious functions, which can be widely used in the research and development of general food, functional food and health products.