Long periods of light color. A small amount of indole is produced by co-heating with water, and a large amount of indole is produced by heating in the presence of sodium hydroxide and copper sulfate. It is more stable when heated with acid in dark place. It is easily decomposed when co-existing with other amino acids, sugars and aldehydes
Present in burley tobacco leaves and smoke.
Product properties:
White to yellowish-white crystals or crystalline powders. Odorless or slightly smelly, long time light is colored. It is more stable when heated with acid in dark place. It is easily decomposed when co-existing with other amino acids, sugars and aldehydes. Used as food fortifier and antioxidant. It is synthesized from indole aldehyde. It can also be decomposed and synthesized by trypsin.
Product use:
1. Nutritional supplements. The tryptophan contained in egg white protein, fish, corn meal, etc. is the limiting amino acid, and the content of rice and other grains is less. It can be combined with lysine, methionine and threonine to strengthen amino acids. Adding 0.02% tryptophan and 0.1% lysine to corn products can significantly increase the titer of protein.
(1) Bread, cake, noodles, macaroni, improve raw material utilization, improve taste and flavor.