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Year : 2002  |  Volume : 21  |  Issue : 3  |  Page : 188-190

Antimicrobial activity of selected herbal extracts

1 J.S.S. College of Pharmacy, Rocklands, Ootacamund-643 001 (TN), India
2 J.S.S. college of pharmacy,Rocklands, Ootacamund, India

Correspondence Address:
K Gowthamarajan
J.S.S. College of Pharmacy, Rocklands, Ootacamund-643 001 (TN)
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Source of Support: None, Conflict of Interest: None

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Methanolic extract of oleoresins of Araucaria bidwilli Hook: and aerial parts of Cytisus scoparius Linn. Were screened for antimicrobial activity against two bacterial strains-Bacillus subtilis (Gram Positive) and Escherichia coli (Gem negative), and two fungal strains – Candida albicans and crytococcus neoformans by two-fold serial dilution technique. The results showed that all the microorganisms used were sensitive to the extracts. The minimum inhibitory concentrations (MIC ) for A. bidwilli were found to be 31.25 μg/ml for Bacillus subtilis and 500 μg/ml for all other organisms used in the study. In case of C. Scoparius, the MIC  values were 250 μg/ml for B. Subtilis and 500 μg/ml for all the other strains used. However, in comparison the ampicillin (MIC: 62.5 μg/ml), and Amphotericin- B(MIC : 125 μg/ml ), the activities of both the extracts were less except A. bidwilli against B.Subtilis.

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