... catechin, epicatechin, phloridzin, etc.Apple polyphenols is the collection of the polyphenol substances, mainly including Chlorogenic acid, Catechin, ... those immature fruits is 10 times higher than that of mature fruits, therefore immature fruits are more suitable to ... radiation from UV.Application:Apple polyphenols has many effects of antioxidant, deodorizing, fresh-keeping, keeping fragrance, color ...