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Hammam, M., El-Sayed, S., El-Sayed, A., Mohamed, W. (2023). BIOCHEMICAL STUDIES ON ANTIOXIDANT AND ANTIMICROBIAL ACTIVITY OF SOME MEDICINAL PLANTS ESSENTIAL OILS. Menoufia Journal of Agricultural Biotechnology, 8(2), 1-20. doi: 10.21608/mjab.2023.290592
M.A Hammam; S. M El-Sayed; A. G. El-Sayed; W. R Mohamed. "BIOCHEMICAL STUDIES ON ANTIOXIDANT AND ANTIMICROBIAL ACTIVITY OF SOME MEDICINAL PLANTS ESSENTIAL OILS". Menoufia Journal of Agricultural Biotechnology, 8, 2, 2023, 1-20. doi: 10.21608/mjab.2023.290592
Hammam, M., El-Sayed, S., El-Sayed, A., Mohamed, W. (2023). 'BIOCHEMICAL STUDIES ON ANTIOXIDANT AND ANTIMICROBIAL ACTIVITY OF SOME MEDICINAL PLANTS ESSENTIAL OILS', Menoufia Journal of Agricultural Biotechnology, 8(2), pp. 1-20. doi: 10.21608/mjab.2023.290592
Hammam, M., El-Sayed, S., El-Sayed, A., Mohamed, W. BIOCHEMICAL STUDIES ON ANTIOXIDANT AND ANTIMICROBIAL ACTIVITY OF SOME MEDICINAL PLANTS ESSENTIAL OILS. Menoufia Journal of Agricultural Biotechnology, 2023; 8(2): 1-20. doi: 10.21608/mjab.2023.290592

BIOCHEMICAL STUDIES ON ANTIOXIDANT AND ANTIMICROBIAL ACTIVITY OF SOME MEDICINAL PLANTS ESSENTIAL OILS

Article 2, Volume 8, Issue 2, February 2023, Page 1-20  XML PDF (174.39 K)
Document Type: original papers
DOI: 10.21608/mjab.2023.290592
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Authors
M.A Hammam1; S. M El-Sayed1; A. G. El-Sayed2; W. R Mohamed2
1Faculty of Agriculture, Menofia University, Shibin El-Kom, Egypt
2Medicinal and Aromatic Plants Research Department National Research Centre, Egypt
Abstract
The present study was designed to investigate the chemical composition of four medicinal plants essential oils, studying and evaluation the antioxidant and antimicrobial activity of oils, the oils under study were lemon grass (Cymbopogon citratus) belong to family (Poaceae), origanum (Origanum Majorana) belong to family (Lamiaceae), thyme (Thymus Vulgaris) belong to family (Lamiaceae), and rosemary (Rosmarinus officinalis) belong to family (Lamiaceae). The major compounds found in lemon grass, origanum, thyme and rosemary essential oils, were D-Limonene 54.01%, terpinene 4-ol 36.06%, thymol 48.06% and 1,8-Cineole 32.5% respectively. The antimicrobial activity of the investigated essential oils were tested against six bacterial (three gram +ve bacteria and three gram -ve bacteria) and two fungal strains including gram positive (S. aureus, B. subtilis and B. cereus), gram negative (E. Coli , S. typhimurium and Proteus sp) and two fungal (Candida albicans  and Aspergillus niger). The antioxidant potential of lemon grass, orignaum, thyme and Rosemary essential oils were further highlighted by the quenching of DPPH free radicals. lemon grass essential oil showed the strongest radical-scavenging effect (69.97%) at 50 g/L.
Keywords
EOS; DPPH; TAC; IC50 a
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