Novel hydrolyzed soybean protein decolorizing method

Abstract

The invention relates to a novel hydrolyzed soybean protein decolorizing method. The method adopts safe, nontoxic, soft and light diatomite with strong adsorptivity as a physical deodorizing agent, the deodorizing agent accounts for 17-19% of the weight of a hydrolyzed soybean protein stock solution, and deodorizing is carried out at 50-70 DEG C under a pH value of 3.5-4.5 for 35-45 min. The method has the main advantages of harmlessness to human bodies, no toxic or side effects, small use amount of the deodorizing agent, low cost, significant improvement of the deodorizing rate of the hydrolyzed soybean protein, reduction of the protein loss rate, and good ensuring of the physiologic activity of the hydrolyzed soybean protein.

Description

technical field [0001] The invention relates to a decolorization method, in particular to a novel soybean hydrolyzed protein decolorization method. Background technique [0002] Soybean protein hydrolyzate is the product of soybean protein isolate by enzymatic hydrolysis, which has better solubility than the original soybean protein isolate, which not only expands the use of soybean protein isolate, but also improves the further modification ability of soybean protein isolate. Soybean hydrolyzed protein has high protein content, low fat content, and has the effect of increasing calcium and lowering cholesterol. Therefore, it can also be used as a protein supplement to replace animal protein or eaten directly. However, the color of the processed soybean hydrolyzed protein is often grayish yellow, which not only reduces consumers' desire to buy, but also limits its application in food. [0003] Diatomaceous earth is the remains of diatoms deposited in oceans or lakes, and its...

AI Technical Summary

Problems solved by technology

[0004] However, when diatomaceous earth adsorbs pigments, it also adsorbs amino acids, which reduces the amino acid content in soybean hydrolyzed protein and affects product quality.