Evaluation of medicinal potential and antibacterial activity of selected plants against Streptococcus mutans

Abstract

Article Details: Received: 2020-06-15 | Accepted: 2020-09-28 | Available online: 2021-03-31 https://doi.org/10.15414/afz.2021.24.01.9-15

The 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. It was noted that antioxidant activity is highest in methanol extract as compared to aqueous and acetone. MIC analysis also revealed that formulated powder had excellent antibacterial activity against S. mutans and it was observed the lowest values (450 µg ml-1) showed aqueous & methanol followed by acetone. The herbal formulation might be used to formulate new herbal products against tooth decay in near future.

Keywords: antibacterial activity, antioxidant activity, ethnomedicinal plants, secondary metabolites, tooth decay

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