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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/11042

Title: Anti-infective Properties and Time-Kill Kinetics of Phyllanthus muellerianus and its Major Constituent, Geraniin
Authors: Boakye, Yaw Duah
Agyare, Christian
Hensel, Andreas
Keywords: Phyllanthus muellerianus
Geraniin
Antibiotic resistance
Antibacterial
Antifungal
Issue Date: 2016
Publisher: Medicinal Chemistry: Current Research
Citation: Medicinal Chemistry: Current Research;2016, 6:2; http://dx.doi.org/10.4172/2161-0444.1000332
Abstract: upsurge in the search for newer antimicrobial agents from nature with plants becoming the major focus in most parts of the world due to the vast availability of plants, which have not been screened for their antimicrobial activity. Hence, the study investigates the antimicrobial properties of aqueous aerial part extract of Phyllanthus muellerianus (PLE) and its major constituent, geraniin. The agar well diffusion and micro-dilution methods as well as time-kill kinetic studies were used to determine the antimicrobial activity of PLE and geraniin against Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Staphylococcus aureus ATCC 25923, Bacillus subtilis NCTC 10073, Streptococcus pyogenes (clinical isolate) and Candida albicans (clinical isolate). The mean zones of growth inhibition for PLE and geraniin were in the range of 12.0 ± 0.0 to 22.7 ± 0.3 and 12.0 ± 0.0 to 21.6 ± 0.3 mm, respectively. MIC of both PLE and geraniin ranged from 0.31 to 5 and 0.08 to 1.25 mg/mL (90 to 1310 μM), respectively whiles the minimum cidal concentrations were 5.0 to 50.0 and 2.5 to 10 mg/mL (2.62 to 10.5 mM), respectively. The time-kill kinetics study showed that PLE and geraniin may act as microbiostatic agents. Preliminary phytochemical screening of PLE showed the presence of alkaloids, glycosides, saponins, tannins, flavonoids and terpenoids. The observed antimicrobial activity of the extract, PLE, may be due in large proportion to its major constituent, geraniin.
Description: An article published by Medicinal Chemistry: Current Research, 2016, 6:2; http://dx.doi.org/10.4172/2161-0444.1000332
URI: http://hdl.handle.net/123456789/11042
Appears in Collections:College of Health Sciences

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