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Asian Journal of Biological Sciences

Year: 2019 | Volume: 12 | Issue: 1 | Page No.: 61-66
DOI: 10.17311/ajbs.2019.61.66
In vitro Evaluation of Antibacterial Potential of Combined Extract from Kalanchoe pinnata and Citrus aurantifolia on Otitis-media Pathogens
Uzoamaka Ogechi George-Okafor , Enuma Ekpereka Mike-Anosike and Uju Felicia Nwachukwu

Abstract: Background and Objective: The advocacy for the alternative use of some combined therapy in herbal medicine is currently gaining more grounds in Nigeria than before due to incessant drug resistance phenomenon. Thus, the study was focused on the evaluation of the antibacterial property of the combined extract from Kalanchoe pinnata and Citrus aurantifolia for the inhibition of the otitis-media isolates. Materials and Methods: The test organisms were isolated from otitis-media samples by standard bacteriological methods and identified by numerical taxonomic procedures using Jaccard Simple Matching Coefficient tool. The Kirby-Bauer disk diffusion susceptibility method was adopted for their sensitivity to varied concentrations of the combined extract. The obtained data were considered significant at p<0.05 by using statistical package for social sciences (SPSS), version 15 for paired-t-test correlation analysis. Results: The predominant recovered isolates were Staphylococcus aureus (86.7%), Streptococcus pneumoniae (60%), Streptococcus pyogenes (80%) and Proteus mirabilis (56.7%). Relatively, the combined extract had greater antibacterial action especially on the Gram-ve Proteus mirabilis (119.3±0.14%) than the single extract (71.5±0.09%) and demonstrated above 70% sensitivity in line with the most sensitive reference antibiotics (Ampiclox, Gentamicin and Ciprofloxacin) at a significant level of p<0.05. There was significant dose-dependent efficacy of the extract on these isolates. The lower concentration (10 μg), significantly (p<0.05) exhibited stronger inhibitory actions (82.7±0.11-119.3±0.14%) than the higher (30 μg) concentration which achieved a range of 71.9±0.07-99.3±0.10% inhibition against the test isolates. Conclusion: The observed results indicated the strong antibacterial potential of the combined test extract against otitis-media pathogens and these will be supportive to scientific documentation for pharmacological utilization.

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How to cite this article
Uzoamaka Ogechi George-Okafor, Enuma Ekpereka Mike-Anosike and Uju Felicia Nwachukwu, 2019. In vitro Evaluation of Antibacterial Potential of Combined Extract from Kalanchoe pinnata and Citrus aurantifolia on Otitis-media Pathogens. Asian Journal of Biological Sciences, 12: 61-66.

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