... Natrual antioxidant. 4. GMP plant, in stock Apple Polyphenol / AntioxidantSpecification:Apple polyphenols 50%,70%,75%,80% UVPhlorzin 10%-98% ... polyphenol substances, mainly including Chlorogenic acid, Catechin, Epicatechin, Apple condensed tannin, Phlorhizin, Phloretin, Anthocyanin 50%, etc. Polyphenol ... of food quality, so it has been widely used in the manufacturing and processing of aquatic products, ...