Proestos, C.; Varzakas, T. Aromatic Plants: Antioxidant Capacity and Polyphenol Characterisation. Foods2017, 6, 28.
Proestos, C.; Varzakas, T. Aromatic Plants: Antioxidant Capacity and Polyphenol Characterisation. Foods 2017, 6, 28.
Abstract
The antioxidant properties and polyphenol content of some selected aromatic plants grown in Greece were studied. Plants were refluxed with 60% methanol after acid hydrolysis. The phenolic substances were quantified by HPLC-DAD. The antioxidant capacity of the extracts was determined with the Rancimat test using sunflower oil as substrate. Free radical scavenging activity was measured using the stable free radical 1, 1-diphenyl-2-picrylhydrazyl (DPPH). Results were compared with standard BHT and ascorbic acid. Total phenol concentration of the extracts was estimated with Folin-Ciocalteu reagent using gallic acid as standard.
Keywords
aromatic plants; HPLC; antioxidant capacity; DPPH; Rancimat test
Subject
CHEMISTRY, Food Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.