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.
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.
aromatic plants; HPLC; antioxidant capacity; DPPH; Rancimat test
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