Analysis of Polyphenol Constituents in Cocoa and Chocolate

摘要

The antioxidant components of cacao liquor, a major ingredient of chocolate and cocoa, have been identified as flavan-3-ols (catechin and epicatechin) and procyanidin oligomers (procyanidin B2, procyanidin C1, cinnamtannin A2, galactopyranosyl-ent-(-)-epicatechin (2α→7, 4α→8)-(-)-epicatechin (Gal-EC-EC)). We characterized the procyanidin profiles in cacao liquor, dark chocolate and pure cocoa powder. Furthermore, the effect of the milk on the determination of polyphenols in milk chocolate and milk cocoa was investigated.