Determination of Antioxidant Activity of Citrus Species using Different Solvent Extracts by Hydrogen Peroxide Scavenging Method

Prasad.M.P; Ashwin Rajkumar.R

Volume : III, Issue : VI, June - 2014

Determination of Antioxidant Activity of Citrus Species using Different Solvent Extracts by Hydrogen Peroxide Scavenging Method

Prasad. M. P, Ashwin Rajkumar. R

Abstract :

Natural antioxidants present in the plants scavenge harmful free radicals from our body. Citrus fruits and juices are an important source of bioactive compounds including antioxidants such as ascorbic acid, flavonoids, phenolic compounds and pectins that are important to human nutrition. In the present investigation, the methanolic extracts of the C. aurantifolia, C. hystrix, Murraya koenigii and C. medica exhibited the maximum activity 45.75%, 57.08%, 65.04%, 63.87% at 100 �g/ml respectively. The ethanolic extracts which showed the maximum activity in all the samples 57.73% (C. aurantifolia), 49.37% (C. hystrix), 65.18% (C. maxima), 57.98% (C. reticulata), 76.30% (Murraya koenigii) and 61.6% (C. medica) at 100 �g/ml concentration. The hexane extract of C. aurantifolia (73.6% - 79.79%), C. hystrix (6.97% - 75.72%) and Murraya koenigii (67.32% - 81.68%) which revealed the maximum scavenging activity and the C. maxima, which showed the activity in the range 30.81% - 84.22%.