ANTIOXIDANT ACTIVITY OF SOME FRUITS IN INDIAN DIET

The antioxidant activity of 19 fruits and 5 fruit juices was evaluated using three model reaction systems ( FRAP assay, -carotene lineolate assay and super-oxide anion scavenging activity). Aonla fruits had the highest phenol content (290 mg/100 g), and highest antioxidant activity (56.8 mM) -carotene lineolate system (92%) and super-oxide anion scavenging activity (85%). Appreciably high phenolic content was also recorded in anthocyanin rich fruits like red pomegranate (270 mg/100 g), plums (250mg/100 g), jamun (215mg/100 g) and black grapes (192mg/100 g). Processing in the form of juices resulted in a significant increase in total phenols and antioxidant activity.
Fruits like ber, phalsa, apple and strawberry also had moderate antioxidant activity ranging from 12-64 mM FRAP. A linear relationship was observed between phenols and antioxidant activity (R²=0.87) in FRAP assay.
Anthocyanin and phenolics rich fruits like aonla, jamun and bael are good source of dietary antioxidants.

VII International Symposium on Temperate Zone Fruits in the Tropics and Subtropics – Part Two

C. Kaur, H.C. Kapoor

antioxidant activity, fruits, phenolics

https://doi.org/10.17660/ActaHortic.2005.696.99