Antioxidant activity of Bitter orange (Citrus aurantium L.) peel powder

Adeline Dorcas .F; Dr. Sheila John; Dr. EstherLydia. D; Priyadarshini. S

Volume : VI, Issue : IV, April - 2016

Antioxidant activity of Bitter orange (Citrus aurantium L.) peel powder

Adeline Dorcas . F, Dr. Sheila John, Dr. Estherlydia. D, Priyadarshini. S

Abstract :

Recent studies have proved that citrus fruits apart from contributing vitamin C to the diet are also an abundant source of bioactive components such as phytonutrients and antioxidants. And these bioactive components which are potential therapeutic agents for degenerative diseases are present in their peels. The present study was aimed at determining the antioxidant activity of Bitter orange (Citrus aurantium L.) peel powder using three different methods (DPPH assay, FRAP assay and Hydrogen peroxide scavenging assay). From the results obtained from DPPH assay of Citrus aurantium L. peel powder using five different extracts (aqueous, acetone, ethanol, petroleum ether and chloroform), it was found that acetone had greater scavenging activity followed by ethanol, aqueous, and chloroform at 30 minutes. The antioxidant activity of Citrus aurantium L. peel powder using ethanol extract by FRAP assay was 2.010mM Fe/g indicating high antioxidant activity. The results for Hydrogen peroxide scavenging assay indicate that the percentage of scavenging activity by the standard Gallic acid was 57.32% and the test sample (Citrus aurantium L. peel powder ethanol extract) yielded 42.13% of scavenging activity