... 1(EGC), 1257-08-5 (ECG), 490-46-0 (EC) Green tea extract Green tea extract, like many herbs, is standardized in the production phase to ... in the final capsulized form. The active ingredients in green tea extract are polyphenols in the form of flavonoids like catechins and ... Application 1. Applied in food field, it is used as natural antioxidant, antistaling agent, and anti-fading agents. 2. As ...