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Abstract

ANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES OF ETHANOL BARK EXTRACT FROM TAMARINDUS INDICA LINN

Gidhamari Srinivas* and Dr. Raja Kumar R.

ABSTRACT

This study focused on the biomedical significance of the ethanol bark extract of Tamarindus indica L. The dried bark was extracted with ethanol; rotary evaporated and lyophilized which was used for the evaluations of antioxidant and antimicrobial properties. Antioxidant activities of bark extract observed using nitric oxide radical scavenging assay showed a most appreciable value of 87.9%, followed by DPPH photometric assay which showed the next appreciable activity of 78.89%, moreover hydrogen peroxide scavenging assay revealed 43.8% activity and superoxide radical scavenging assay showed the least activity of 21.32% among the tested procedures. Further, the extract also revealed promising antimicrobial activity against three human pathogens viz., Streptococcus pneumoniae, Escherichia coli and Salmonella paratyphi. All these observations showed the ethanol bark extract from Tamarindus indica showed significant properties of antioxidant and antimicrobial activities which proved to be the excellent sources of applications in the field of biomedicine.

Keywords: Tamarindus indica; Ethanol extraction; Bark; Antimicrobial; Antioxidant.


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