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Phytochemical screening and a comparative study of antibacte | 17370
International Research Journals
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Phytochemical screening and a comparative study of antibacterial activity of Aloe vera green rind, gel and leaf pulp extracts

Abstract

Yebpella G. G. , Hammuel C., Adeyemi Hassan M. M. , Magomya A.M. , Agbaji A.S. and Shallangwa G.A.

A phytochemical and comparative study of the antibacterial activity of Aloe vera extracts were carried out. The phytochemical screening revealed the presence of bioactive compounds such as saponins, alkaloids, flavonoids, tannins, glycosides, and proteins, with absence of cardiac glycosides and sterols in all investigated extracts. According to the antibacterial activity results, Escherichia coli was sensitive to all extracts while Klebsiella pneumoniae and Pseudomonas aeruginosa were resistant to methanol and aqueous leaf pulp extracts, Salmonella typhi was sensitive to gel and the green rind aqueous (GRA) extract . The GRA and gel exhibited high activity against the assayed bacteria. The MIC value ranged from 6.25 to 25mg/ml and the MBC ranged from 12.5 to 50mg/ml. Among the assayed extracts, the gel exhibited great potential against the bacteria tested in this study.

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