Hydrolyzed Soy Protein Liquid: The Transformation from Soybeans to a "Universal" Essence

Hydrolyzed soy protein liquid (HVP) is a functional product made from soy protein through a hydrolysis process. Its production process is rather complex. First, high-quality soybeans are selected and undergo a series of pretreatment steps, such as screening and washing, to remove impurities. Then, defatting is carried out, often using physical pressing or organic solvent extraction to obtain soybean meal with a higher protein content. Next, the crucial hydrolysis step comes into play, with three main methods: acid hydrolysis, alkaline hydrolysis, and enzymatic hydrolysis. Although acid and alkaline hydrolysis are relatively simple to operate, they have harsh reaction conditions, are prone to environmental pollution, and can destroy some amino acids, affecting product quality. Enzymatic hydrolysis, with its mild reaction conditions, easy control of hydrolysis degree, and minimal amino acid damage, has become the mainstream method. In enzymatic hydrolysis, appropriate proteases, suc...