In-vitro Antioxidant and Anti-inflammatory Activities of Quisqualis indica Linn. Leaves Extract

Aim: In this study antioxidant and anti-inflammatory effect of ethanolic extract of Quisqualis indica leaves was evaluated.

Study Design: In-vitro analysis of Quisqualis indica leaf extract.

Place and Duration of Study: Molecular Biology laboratory, Department of Biotechnology, G.B Pant Engineering College, Pauri, between July 2015 and July 2016.

Methods: Non-enzymatic and enzymatic assays such as DPPH (1, 1diphenyl-2-picryl hydrazyl), FRAP assay, superoxide dismutase SOD (EC 1.15.1.1), catalase (EC 1.11.1.6), for radical scavenging activity of ethanolic extracts of Quisqualis indica Linn. plant leaves had done. For estimation of anti-inflammatory action, two methods were employed: protein denaturation method and membrane stabilization method.

Results: Ethanolic extract of leaves on higher concentration had better antioxidant potential when compared with reference standard ascorbic acid. They exhibited strong antioxidant radical scavenging activity values for ethanolic extract of leaves. Results of anti-inflammatory method suggested better potential values for ethanolic extract and compared with standard drug diclofenac sodium respectively. A significant relationship between antioxidant, anti-inflammatory capacity and total phenolic content was examined, indicating that phenolic compounds are the major contributors for the antioxidant and anti-inflammatory properties of this plant.

Conclusion: Ethanolic extract of Q. indica exhibited strong anti-inflammatory and antioxidant activity and this can be used for designing novel drug inhibitors with better efficacy.