Phytochemical Studies of Rhodomyrtus tomentosa Leaves, Stem and Fruits as Antimicrobial and Antioxidant Agents
Mohammad Farhan Ariffeen Rosli, Mohd Razip Asaruddin, Ardy Mursyid Romli, Sam Ezekiel Radhakrishnan, Tiara Nales Nyawai, Muhammad Norhelmi Ahmad
Rhodomyrtus tomentosa, or kemunting (local name) is a well-known medicinal plant used to treat various sickness. R. tomentosa is native to southern and south-eastern Asia. The chemical constituents from leaves, stems and fruits of R. tomentosa was determined. The antibacterial and antioxidant activity of the crude extract and isolated compounds was performed. Screening and assay-guided isolation technique was performed upon the plant extract against Gram-positive and -negative bacterial strain, namely Escherichia coli and Staphylococcus aureas. In vitro antioxidant activity of the extract will also be assessed by 2,2-diphenylpicrylhydrazyl (DPPH) assay. The successful isolated compounds were also evaluated for their antibacterial and antioxidant activity.
KEYWORDS: Rhodomyrtus tomentosa; assay-guided isolation; antibacterial activity; antioxidant activity; DPPH assay; E. coli; Staphylococcus aureas
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