Antimicrobial, antioxidant and antibiofilm activities of polysaccharides extracted from Moringa oleifera leaves | ||||
Journal of Scientific Research in Science | ||||
Article 5, Volume 40, Issue 2, 2023, Page 72-83 PDF (608.25 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jsrs.2023.331816 | ||||
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Authors | ||||
lamis saleh mohamed 1; Mohamed E. El Awady2; Zeinab M.H. Kheiralla 1; Soheir S. Maklad3; Elham E. Moustafa1 | ||||
1Botany Department, Faculty of Women for Arts, Science, and Education, Ain Shams University, Cairo, Egypt. | ||||
2Microbial Biotechnology Department, National Research Centre, Giza, Egypt. | ||||
3Medical Microbiology and Immunology Department, Faculty of Medicine for Girls Al-Azhar University, Cairo, Egypt | ||||
Abstract | ||||
Moringa oleifera is one of the world's most significant therapeutic plants, it is rich in many phytochemicals including polysaccharides. Natural polysaccharides have a wide range of beneficial therapeutic and health-promoting properties. The current study investigated the antimicrobial in a 96-well plate, antioxidant by DPPH scavenging assay and antibiofilm activities of both polysaccharides (MOLPs) extracted from M. oleifera leaves and crude extracts of leaves (MOLCEs) by different solvents (methanol, 70% ethanol, ethyl acetate, and hot distilled water (80°C)). Results revealed that the antimicrobial activity of MOLPs against S. aureus, B. Subtilis, E. coli, and P. aeruginosa at 500mg/ml was 72.7%, 73.1%, 75.2%, and 74.4%, respectively. The antimicrobial activity of hot water crude extract ranged from 67% to 71% while other crude extracts were less effective. DPPH scavenging activity of MOLPs and MOLCEs was concentration-dependent, at 500 mg/ml it was 76.56% and 81.87% for MOLPs and hot aqueous crude extract, respectively. Other crude extracts were less effective. The biofilm inhibitory activity of MOLPs against S. aureus and E. coli was 62.56% and 65.65%, respectively while was 55.5% and 57.42% for hot water crude extract. Other MOLCEs by organic solvents (methanol, 70% ethanol and ethyl acetate) showed low inhibitory activity. These results confirmed the importance of polysaccharides as a bioactive agent that can be used as a promising therapeutic agent. | ||||
Keywords | ||||
Plant polysaccharides; Moringa oleifera; antioxidant; antimicrobial; antibiofilm | ||||
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