Description
Principle of the Assay: Plant phenolic substances have the functions of scavenging free radicals, anti-oxidation and anti-aging, and have high camp value and health care effects, and are widely used in cosmetics, food, medicine and other fields. Under alkaline conditions, the phenolic material reduces the tungsten molybdic acid to produce a blue compound with a characteristic absorption peak at 760 nm, and the absorbance at 760 nm is measured to obtain the total phenol content of the sample