SUMMARY
Article Details: Received: 2020-06-15 | Accepted: 2020-09-28 | Available online: 2021-03-31 https://doi.org/10.15414/afz.2021.24.01.9-15The aim of the study is to screen the bioactive compounds (saponin, tannin, phenolic compounds, terpenoid & steroid) present in selected ethnomedicinal plants, Terminalia bellirica (fruits), Smilax zeylanica (leaves) and Dioscorea oppositifolia (fruits) from Odisha state, India. The single formulation was prepared using the selected plants parts in the ratio 1 : 6 : 3 respectively for quantitative analysis of tannin & total phenol, antioxidant activity and analysis of MIC (Minimum Inhibitory Concentration) against Streptococcus mutans causing bacteria of tooth decay. Results revealed that selected plant parts are rich source of bioactive compounds like tannin, phenolic compounds and saponin. The quantitative analysis of secondary metabolites showed highest concentration of tannin. 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