Int. J. Mol. Sci. 2011, 12(10), 6385-6396; doi:10.3390/ijms12106385

Assessment of Tamarindus indica Extracts for Antibacterial Activity

1 Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa 2 Department of Botany, Delta State University, Abraka, 330106, Delta State, Nigeria
* Author to whom correspondence should be addressed.
Received: 30 August 2011; in revised form: 19 September 2011 / Accepted: 22 September 2011 / Published: 26 September 2011
(This article belongs to the Section Bioactives and Nutraceuticals)
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Abstract: Ethanolic and aqueous (hot and cold) extracts of the fruit pulp, stem bark and leaves of Tamarindus indica were evaluated for antibacterial activity, in vitro, against 13 Gram negative and 5 Gram positive bacterial strains using agar well diffusion and macro broth dilution techniques, simultaneously. The fruit pulp extracts exhibited a wide spectrum of activity; the cold water extract against 95.5% of the test bacterial strains; and the hot water and ethanolic extracts against 90.9% and 86.4%, respectively. In contrast the cold water extract of the leaves and stem bark, each was active against 16.7%; while the ethanolic extract of each was active against 75% of the test strains. The minimum inhibitory concentrations (MIC) ranged from 7.81 mg/mL against Bacillus subtilis ATCC 6051 to 31.25 mg/mL against Escherichia coli ATCC 11775; and the minimum bactericidal concentration (MBC) ranged from 125 mg/mL against Pseudomonas aeruginosa ATCC 10145 to 250 mg/mL against Bacillus subtilis ATCC 6051.
Keywords: Tamarind; Tamarindus indica; extracts; antibacterial activity

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MDPI and ACS Style

Nwodo, U.U.; Obiiyeke, G.E.; Chigor, V.N.; Okoh, A.I. Assessment of Tamarindus indica Extracts for Antibacterial Activity. Int. J. Mol. Sci. 2011, 12, 6385-6396.

AMA Style

Nwodo UU, Obiiyeke GE, Chigor VN, Okoh AI. Assessment of Tamarindus indica Extracts for Antibacterial Activity. International Journal of Molecular Sciences. 2011; 12(10):6385-6396.

Chicago/Turabian Style

Nwodo, Uchechukwu U.; Obiiyeke, Grace E.; Chigor, Vincent N.; Okoh, Anthony I. 2011. "Assessment of Tamarindus indica Extracts for Antibacterial Activity." Int. J. Mol. Sci. 12, no. 10: 6385-6396.

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