European Journal of Biotechnology and Bioscience

Authors
Gopi Krishnan, Murugesh, Patharaj

Abstract
Oxalis latifolia Kunth. (Family: Oxalidaceae) is a well-known species in India and it is one of the most multipurpose medicinal plants having a wide spectrum of biological activity. The preliminary phytochemical analysis of Oxalis latifolia Kunth was carried out by a standard techniques and the results revealed the presence of tannins, alkaloids, reducing sugar, protein, phenols, saponins, flavonoids and glycosides. Total content of phenol and total content of flavonoid in methanolic extract was evaluated by means of the method named Folin aluminum trichloride method respectively. The antimicrobial screening was carried out using the following organisms; Eshericha coli, Bacillus subtilis, Salmonella typhi, Aspergillus niger and Aspergillus fumigates. The free radical scavenging activity of Oxalis latifolia Kunth was studied by its ability to reduce the DPPH, a stable free radical. The DPPH inhibition of leaf extracts are shown in Fig-3. The maximum scavenging activity was seen at a concentration of 512 μg/ml and lowest was at 2μg/ml. The DPPH scavenging activity was ranging from 4.3 ± 1.1% to 66.8 ± 1.06%. The result of the present study indicated that the extracts of the leaves of the Oxalis latifolia have several phytochemical constituents who possess the antibacterial and strong antioxidant activities.