Purpose: Various parts of Moringa oleifera Lam. (Moringaceae) are used in traditional systems of medicine. This study investigates the antimicrobial activity of the crude aqueous extract and polyphenol enriched fractions of M. oleifera leaves at the flowering stage against microbial strains causing oral and wound infections. Methods: Polyphenol enriched fractions (hydroalcoholic extract, methanol fresh leaves extract, methanol dry leaves extract and decoction) were prepared using four different methods and total polyphenolic content (TPC) and total flavonoid content (TFC) of the extracts were determined. Crude aqueous extract and the fractions were tested against ATCC reference strains of Escherichia coli and Candida albicans (oral pathogens) and Streptococcus aureus and Staphylococcus pyogenes (wound pathogens) using agar well diffusion method. Gentamycin and clotrimazole were used as the positive controls for bacteria and fungi respectively and distilled water was used as the negative control. Results: Methanol dry leaves extract demonstrated highest values of TPC (11.92 ±0.39 mg GAE/g) and TFC (41.68±0.82 mg QE/g). Each polyphenol fraction demonstrated antibacterial activity against E. coli, S. aureus and S. pyogenes at concentrations of 500 -1000 mg/ml. Hydro-alcoholic and methanol (fresh leaves) extracts demonstrated antifungal activity against C. albicans. The crude aqueous extract exhibited dose dependent antibacterial activity against S. aureus. All extracts demonstrated less antibacterial activity against S. pyogenes compared to S. aureus. Conclusion: Polyphenol rich fractions of M. oleifera leaves at the flowering stage possessed antimicrobial activity against E. coli, S. aureus, S. pyogenes and C. albicans.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.