Determination of quantity and quality of polyphenol antioxidants in foods and beverages
Vinson, J.A.; Proch, J.; Bose, P.
Methods in Enzymology 335: 103-114
2001
ISSN/ISBN: 0076-6879 PMID: 11400359 Document Number: 536048
This article describes the methods for determining the quantity and quality of polyphenol antioxidants in foods and beverages. The conclusions are: (1) the methods are quick, simple and inexpensive to perform; (2) the Folin quantitation method can determine both free and total polyphenol antioxidants in foods and beverages as described, as well as botanical extracts; and (3) the dose-response in vitro of lower density lipoprotein antioxidant activity measurement (IC50) can be employed to compare antioxidants as pure compounds, or in mixtures after quantitating the polyphenols.