Chinese name: Pingguo Duofen
English name: apple polyphenol
Appearance: reddish brown to brown powder
Taste: bitter and astringent
Solubility: Soluble in water, ethanol and methanol.
Testing methods: UV, HPLC
Description: Apple polyphenol is the general name of polyphenols contained in apples, which is the secondary metabolite produced during the growth of apples. Apple polyphenol includes many kinds of phenolics, which can be divided into phenolic acids and their hydroxy esters, saccharide derivatives and flavonoids (such as catechin, epicatechin, procyanidine, dihydroxychalcone, flavonol aglycone, etc.).
It is used in daily chemical products and food additives.