A process for preparing catechin silk protein by liquid-solid fluidized state method

Abstract

The invention discloses a liquid-solid fluidization based process for preparing catechin silk protein. The process comprises the following steps: a, removing impurities from acacia catechu raw materials, after smashing and dust blowing, adding gel for granulation, and performing drying to obtain acacia catechu granules; b, feeding the acacia catechu granules and a silk protein solution to a fluidization reaction tower in a mass ratio being 1:9-11, and performing a fluidization reaction at 30-40 DEG C to obtain a catechin silk protein solution with 0.3%-0.5% of catechin. The process aims to uniformly blend catechin to the silk protein solution, so that silk protein solution with stable quality is formed, the silk protein solution can be stored for a long time and quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of silk protein, in particular to a process for preparing catechin silk protein by a liquid-solid fluidized state method. Background technique [0002] The silk industry originated in my country has a long history of thousands of years. However, the application of silk is mainly to use silk fiber as clothing material. With the progress of society and the development of modern science and technology, the development and utilization of new functions of silk are becoming more and more important. more and more become a trend. [0003] At the end of the 1920s, the silk industry experienced overproduction for the first time in the world. From 1933, people took the lead in applying silk to the field of non-clothing clothing and used it through research. Since then, the multifunctional development and utilization of silk protein has begun. It is found through research that silk is mainly composed of 20-30% sericin p...

AI Technical Summary

Problems solved by technology

[0004] In addition, at present, people generally prepare sericin peptide protein or silk fibroin peptide protein only by hydrolysis. For example, the prior art of Chinese Patent Publication No. CN107937460A disclosed a preparation method of hydrolyzed sericin peptide on April 20, 2018. And the prior art with Chinese patent announcement number CN107722116A disclosed a method for separating silk fibroin peptides with small molecular weight on February 23, 2018. Both of these two patents can better prepare sericin peptide protein or silk fibroin Peptide protein, but because sericin and silk fibroin complement each other, these two patents can only prepare one of sericin peptide protein or silk fibroin peptide protein, but cannot prepare two kinds at the same time, and there are still low preparation efficiency and Defects such as low product utilization

Moreover, both of the above two pieces used strong acid or strong base (sodium hydroxide) in the preparation process. After hydrolysis, it is necessary to neutralize the acid or base of the hydrolyzed liquid and physically extract the silk fibroin sericin peptide protein. Waste liquid treatment and discharge The amount is also increased, and the pollution control of the post-process is increased, and the efficiency of the process will be low if the process is increased.

Therefore, there are defects such as low preparation efficiency, high manufacturing cost, large pollution, and large protein damage, resulting in that the quality of the product cannot be guaranteed.

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