Comparative Analysis of Phenolic Content and Antioxidant Activities in Herbal Plants

Abstract

This study evaluates the phenolic content and antioxidant activities of four selected herbal plants: Curcuma amada (rhizome), Coleus forskohlii (root), Cissus quadrangularis (whole plant), and Acorus calamus (rhizome). After processing the plant samples, total phenolics, flavonoid content, and antioxidant properties were measured. Notable findings include the highest total phenolic content in Cissus quadrangularis (37.52 mg gallic acid/g), while Curcuma amada exhibited the highest levels of flavonoids (20.03 mg/g quercetin equivalent), DPPH radical scavenging activity (65.96%), and superoxide anion scavenging activity (64.49%). Correlations were found between phenolic content and antioxidant activities across the plants. Overall, the herbal plants studied demonstrated significant antioxidant capacities, highlighting their potential health benefits.