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Biokemistri
Nigerian Society for Experimental Biology
ISSN: 0795-8080
Vol. 23, No. 1, 2011, pp. 35-39
Bioline Code: bk11006
Full paper language: English
Document type: Research Article
Document available free of charge

Biokemistri, Vol. 23, No. 1, 2011, pp. 35-39

 en Phytochemical Screening and Antimicrobial Activities of Terminalia catappa check for this species in other resources , Leaf Extracts
Muhammad, A. & Mudi, S. Y.

Abstract

The powdered leaf of Terminalia catappa check for this species in other resources was extracted using ethanol and partitioned into n-hexane, chloroform, ethyl acetate and aqueous methanol fractions. Test for the presence of secondary metabolites showed the presence of alkaloids, reducing sugars, saponins, tannins, resins and steroids in ethanol soluble fraction. The antimicrobial assay of n-hexane, chloroform and ethyl acetate fractions indicated a positive activity against the bacterial isolates tested. Chloroform fraction showed activity against Gram-negative Escherichia coli check for this species in other resources and Salmonella typhi check for this species in other resources at 500µg/disc, while ethanol and aqueous methanol fractions were active only on Salmonella typhi at concentrations of 300 - 500µg/disc. The present study revealed that the plant extracts contain phytochemicals responsible for the activity against Salmonella typhi.

Keywords
Terminalia catappa, extraction, secondary metabolite, antimicrobial assay

 
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