1. The method of proteolytic separation is obtained by the hydrolysis of blood powder, casein and defatted soybean and the separation by ion exchange resin.
2. Caprolactam or saccharaldehyde was used as raw material for synthesis.
3. It is prepared by fermentation by two-step process of diaminoheptadecic acid and one-step fermentation from starch and sugar raw materials
Ii. Character
Product character
White or near-white free-flowing crystalline powder. Almost odorless. 263264 melts and dissolves. Usually relatively stable, high humidity below 60 is stable, and above 60 is formed dihydrate. Coexisting with vitamin C and vitamin K3, it is easy to stain. Decomposition occurs under alkaline conditions and when heated in the presence of direct and reducing sugars. Easily soluble in water (40g/ml,35), the aqueous solution is neutral to slightly acidic, and heated with acid, ion exchange resin, etc., racemic effect.