PubAg

Main content area

Methods To Measure the Antioxidant Activity of Phytochemicals and Plant Extracts

Author:
Amorati, Riccardo, Valgimigli, Luca
Source:
Journal of agricultural and food chemistry 2018 v.66 no.13 pp. 3324-3329
ISSN:
1520-5118
Subject:
antioxidant activity, antioxidants, phytopharmaceuticals, plant extracts
Abstract:
Measurement of antioxidant properties in plant-derived compounds requires appropriate methods that address the mechanism of antioxidant activity and focus on the kinetics of the reactions involving the antioxidants. Methods based on inhibited autoxidations are the most suited for chain-breaking antioxidants and for termination-enhancing antioxidants, while different specific studies are needed for preventive antioxidants. A selection of chemical testing methods is critically reviewed, highlighting their advantages and limitations and discussing their usefulness to investigate both pure molecules and raw extracts. The influence of the reaction medium on antioxidants’ performance is also addressed.
Agid:
6042809