ANTIBACTERIAL ACTIVITIES OF DRIED LEAF EXTRACTS OF CARICA PAPAYA, PTEROCARPUS SOYAUXII, AND VERNONIA AMYGDALINA ON CLINICAL ISOLATES OF ESCHERICHIA COLI, KLEBSIELLA PNEUMONIAE, STAPHYLOCOCCUS AUREUS AND BACILLUS SUBTILIS
| Autor: | Chima NGUMAH, Sarah UMEH, Etienne CHINAKWE, Nnenna ONYEMEKARA, Jane NGUMAH, MaryJoan NGUMAH |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Annals of West University of Timisoara: Series of Biology, Vol 19, Iss 1, Pp 35-40 (2016) |
| ISSN: | 2285-7044 1582-3830 |
| Popis: | The antibacterial activities of cold and hot ethanol extracts of air-dried leaves of Carica papaya, Pterocarpus soyauxii, and Vernonia amygdalina on clinical isolates of Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus and Bacillus subtilis were investigated. The cup-plate agar method was used to determine bacterial susceptibility. All the plant extracts screened were potent on the entire clinical isolates tested. However, there was no significant difference in the inhibition zone diameters of the plant extracts screened (on all the test isolates). There was also no significant difference in the inhibition zone diameters between the cold and hot ethanol extracts of each plant. Phytochemical analysis revealed the presence of alkaloids, anthroquinone, flavonoids, saponins, steroids, tannins, terpenoids and glycosides in all leaf samples. The results obtained here reveal the antibacterial potentials of the leaf extracts of Carica papaya, Pterocarpus soyauxii, and Vernonia amygdalina, and suggests their possible exploitation for the development of novel herbal-based antimicrobials. |
| Databáze: | OpenAIRE |
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