Analysis of total phenolics and antioxidant Activity of alcoholic and aqueous extract Of south indian curcuma longa rhizome

Abstract

The present study investigates the total phenolic content and antioxidant activity of Curcuma longa rhizomes alcoholic (50% methanolic, 96 % methanolic) and aqueous extracts by Folin-Ciocalteu assay and DPPH assay respectively. There was a statistically significant difference between groups as determined by one-way ANOVA. Bonferroni post hoc test revealed that total phenolic contents and antioxidant activity of Curcuma longa  rhizomes was statistically significant; increasing from aqueous extract, followed by 50 % methanolic extract, and finally 96 % methanolic extract. The present study also confirms the significant and positive correlation existing between the antioxidant activity and phenolic content of Curcuma longa rhizomes.