Author/Authors :
Abd Aziz, S.M. Universiti Putra Malaysia - Faculty of Food Science and Technology, Center of Excellence for Food Safety Research, Malaysia , Low, C.N. Universiti Putra Malaysia - Faculty of Food Science and Technology, Center of Excellence for Food Safety Research, Malaysia , Chai, L.C. university of malaya - Faculty of Science, Institute of Biological Science - Microbiology Unit, Malaysia , Abd Razak, S.S.N. Universiti Putra Malaysia - Faculty of Food Science and Technology, Center of Excellence for Food Safety Research, Malaysia , Selamat, J. Universiti Putra Malaysia - Faculty of Food Science and Technology, Center of Excellence for Food Safety Research, Malaysia , Son, R. Universiti Putra Malaysia - Faculty of Food Science and Technology, Centre of Excellence for Food Safety Research, Malaysia , Sarker, M.Z.I. International Islamic University Malaysia, Kuantan Campus - Faculty of Pharmacy - Department of Pharmaceutical Technology, Malaysia , Khatib, A. Universiti Putra Malaysia - Faculty of Food Science and Technology, Center of Excellence for Food Safety Research, Institute of Bioscience - Laboratory of Natural Product, Malaysia
Abstract :
This study was conducted to evaluate antimicrobial properties of ethanolic extracts of the leaves of Nephelium lappaceum, Curcuma longa, Cinnamomun cassia, Durio zibethinus, Vitex trifolia, Amaranthus tricolor, Syzygium samarangense and Manihot esculenta. Antibacterial properties of the extracts were studied against fifteen strains of different gram positive and gram negative pathogenic bacteria, including Bacillus cereus, Listeria monocytogenes, Staphylococcus aureus, Vibrio para, and Escherichia coli using the agar disk diffusion method. Among the tested extracts, only Amaranthus tricolor exhibited specific inhibition of one of the tested bacteria; Bacillus cereus. Using the microdilution method, its minimum inhibitory concentration (MIC) value was determined to be 20 mg/mL.
