Extractives from Vepris glandulosa Leaf Methanol Extract and Its Antibacterial Activity
Résumé
The challenges facing currently available antimicrobials such as resistance with no recent significant discoveries are a major health concern in Kenya characterized by prolonged hospitalization, high medical costs, and high annual fatalities. These challenges put great strain on healthcare systems and as such there is emphasis on new drug discoveries to mitigate the predicament. The objective of the study was to determine the antibacterial activity of Vepris glandulosa extracts after careful purification, isolation and structural characterization. In this study, crude methanol extracts were obtained using the cold extraction method. Isolation of compounds was accomplished by repeated column and thin-layer chromatography. One compound was obtained which was subjected to both 1D and 2D NMR spectroscopic analysis and the spectroscopic data obtained was used to propose the structure. The compound had its structure fully elucidated and was confirmed by comparing its NMR spectroscopic data with the literature reported to be Lupeol. Lupeol showed antibacterial activity against selected gram-negative and gram-positive bacteria
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Références
Barstow, M. (2018). The IUCN Red List of Threatened Species: Vepris grandulosa. International Union for Conservation of Nature and Natural Resources, 2–9.
Bishnu, J., Sharma, A., & Lekhak, S. (2009). Antibacterial Property of Different Medicinal Plants: Ocimum sanctum, Cinnamomum zeylanicum, Xanthoxylum armatum and Origanum majorana. Researchgate, 5(1), 143–144.
Imbenzi, S. P., Ombito, J. O., Cheplogoi, K. P., & Osoro, E. (2014). A review on chemistry of some species of genus Vepris (Rutaceae family). Journal of Scientific and Innovative Research, 3(3), 357–360.
Javid, T., Akhtar, B., Rehman, M., AbdElsalam, N. M., Tariq, A., & Ullah, R. (2015). Antimicrobial Activity of Three Medicinal Plants (Artemesia indica, Medicago falcata and Tecoma stans). Volume 12(Issue 3), 91–92.
Kilonzo, M., & Munisi, D. (2021). Antimicrobial activities and phytochemical analysis of Harrisonia abyssinica (Oliv) and Vepris simplicifolia (Verd) extracts used as traditional medicine in Tanzania. Saudi Journal of Biological Sciences, 28(2021), 7481–7485.
Ministry of Health: Kenya Cancer Policy. (2019). Kenya Cancer Policy 2019-2030, Ministry of Health. Ministry of Health, 2–4.
Ministry of Health: Kenya National Policy on Prevention and Containment of Antimicrobial Resistance. (2017). Kenya national policy on prevention and containment of antimicrobial resistance. 1–3.
Omujal, F., Kirabo, I., Tenda, K. I., Nambatya, Kasango, S. D., Lutoti, S., & Kyeyune, G. (2020). Phytochemistry and anti-inflammatory activity of ethanolic root bark extract of Vepris nobilis Mziray (Rutaceae family). Elsevier, volume 9, 1–2.
Sarker, M. R., Islam, K. N., Huri, H. Z., Rahman, M., Imam, H., Hosen, B., Mohammad, N., & Sarker. (2014). Studies of the Impact of Occupational Exposure of Pharmaceutical Workers on the Development of Antimicrobial Drug Resistance. Journal of Occupational Health, 56, 260–270.
Shwe, H., Win, K., Moe, T., Myint, A., & Win, T. (2019). Isolation and Structural Characterization of Lupeol from the Stem Bark of Diospyros ehretioides Wall. 7(8), 140–142.
Sivasakthi, S., & Saranraj, P. (2014). Medicinal Plants and its Antimicrobial Properties: A Review. Researchgate, 8(3), 316–318.
Solowey, E., Paavilainen, H., Lichtenstein, M., Galski, H. L.-, Sallon, S., & Solowey, E. (2014). Evaluating medicinal plants for anticancer activity. Hindawi Publishing Corporation, 1–12.
Tangjitjareonkun, J., & Supabphol, R. (2014). Chemical Constituents and Biological Activities of Zanthoxylum limonella (Rutaceae): A Review. Tropical Journal of Pharmaceutical Research, 13(12), 2119–2130.
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