Abstract

• The medicinal plant Vincetoxicum flexuosum var. tenuis (Blume) Schneidt, Meve & Liede (Ma Line-Twat) belongs to the family Apocynaceae. The specimens were collected from Yae Chan Pyin Village, Sittwe Area, during the flowering and fruiting period, from May to July, 2023. In this research, morphological characters, preliminary phytochemical tests, nutritional values, trace metal contents analysis and antimicrobial activity tests were carried out. In the morphological study, the plant was climber and milky sap present. The preliminary phytochemical tests revealed that the presence of alkaloid, glycoside, carbohydrate, reducing sugar, saponin and tannin were found; the -amino acid, starch, phenolic compound and flavonoid were absent. In a nutritional study, it was significantly found that 38.13 % of fibres in leaves. According to the Energy Dispersive X-Rays Fluorescence Spectrophotometer (EDXRF) analysis results, chlorine was found more than other elements in leaves. The antimicrobial activity was carried out by agar well diffusion method on six types of test microorganisms. Ethanol extract showed the significant activities on Bacillus subtilis and moderate against on all other test microorganisms. The watery and pet-ether extracts showed the negative results on all types of test microorganisms.