Koursaoui, Loubna, Badr, Satrani, Ghanmi, Mohammed, Jaouadi, Imane, Chibani, Abdelkader, Chahboun, Nabila, Aouane, El Mahjoub, Chaouch, Abdelaziz, and Zarrouk, Abdelkader
This research aimed to evaluate the chemical quality, antioxidant, and antimicrobial (antibacterial and antifungal) activity of essential oils (EOs) from three species of Eucalyptus: E. botryoides, E. cladocalyx, and E. grandis. The identification of the chemical profile of these essential oils revealed that 1,8-cineole, α-pinene, and β-(Z)-ocimene constitutes the significant compounds of these EOs. The antioxidant power tests of the essential oils of E. grandisand and E. cladocalyx showsa strong scavenging activity of the DPPH free radical with a percentage of 80.83 % and 80.46 % respectively at the concentration of 160 mg/mL, results confirmed by the FRAP test. As for the antimicrobial activity, the essential oils significantly inhibited the growth against all the strains studied. E. cladocalyxEOs were preferentially effective against fungi at the minimum inhibitory concentration of 1/2000 v/v, then E. grandisEOs were more effective against bacteria and fungi at the minimum inhibitory concentration of 1/1000 v/v. Finally, E. botryoidesEO is less effective against the tested microbial strains.