Abstract: In this study, four herbs namely Baeckea frutescens, Cinnamomum zeylanicum, Syzygium aromaticum and Vitex negundo were hydrodistilled and the potential antibacterial properties against oral pathogens and ferric reducing antioxidant activities were evaluated. Essential oils extracted from Cinnamomum zeylanicum and Syzygium aromaticum showed varied effectiveness of antimicrobial properties against oral pathogens. Total phenolic content in the selected essential oil extracts were quantified. Ferric reducing antioxidant activities of the essential oils were analyzed by Ferric Reducing Antioxidant Power (FRAP) assay to determine the free radical scavenging capacity. The total phenolic content of all four essential oils ranged from 0.259-1.575 mg GAE/g and the FRAP values lie between 54.71 and 368.78 μM TE/g. GC-MS analysis showed that eugenol and phenol were the highest compounds present in Cinnamomum zeylanicum and Syzygium aromaticum. A positive correlation was observed between the antibacterial properties against oral pathogen and the ferric reducing antioxidant activities of Cinnamomum zeylanicum and Syzygium aromaticum essential oils.
Zaidah Zainal Ariffin, Nur Syahira Mohammad, Muhd Fauzi Safian and Nor Azah Mohamad Ali, 2017. Antibacterial and Ferric Reducing Ability Activities of Selected Herbs Essential Oils. Journal of Engineering and Applied Sciences, 12: 6934-6938.