Title

Antioxidant and Antimicrobial Attributes of Different Solvent Extracts from Leaves and Flowers of Akk [Calotropis Procera (Ait.) Ait. F.)]

Document Type

Journal Article

Publisher

Academic Journals

Faculty

Faculty of Computing, Health and Science

School

School of Natural Sciences

RAS ID

12651

Comments

This article was originally published as: Ahmad, N., Anwar, F., Hameed, S., & Boyce, M. C. (2011). Antioxidant and antimicrobial attributes of different solvent extracts from leaves and flowers of akk [Calotropis procera (Ait.) Ait. F.)]. Journal of Medicinal Plants Research, 5(19), 4879-4887. Original article available here

Abstract

In the present study antioxidant and antimicrobial activities of extracts from leaves and flowers of local Akk (Calotropis procera) were examined. The antioxidant components were extracted using 80% aqueous methanol, 80% aqueous ethanol and 80% aqueous acetone solvents. The antioxidant yield from leaves and flowers of C. procera ranged from 8.48 to 14.07 g/100 g dry weight. The total phenolic and flavanoid content were considerable with total phenolic yields (expressed as gallic acid equivalents) reported in the range of 0.11 to 0.32 g/100 g dry weight, and total flavonoid content (expressed as catechin equivalents) reported in the range 0.01 to 0.10 g/100 g dry weight. C. procera extracts exhibited a reasonable DPPH radical scavenging activity (IC50 8.81 to 37.30 mg/ml) and inhibition of linoleic acid peroxidation (13.63 to 41.53%). Antimicrobial activity of the extracts was evaluated against selected strains of bacteria and pathogenic fungi. The present results revealed that among the samples analyzed, maximum antioxidant and antimicrobial activities were exhibited by 80% ethanol extract of leaves whereas lowest by 80% acetone extract of flowers. From the results of the present investigation, it could be concluded that C. procera extracts can be explored as a potential source for isolation of antioxidant and antimicrobial agents. However, an appropriate solvent extraction system should be used to recover potent antioxidant components from C. procera.