Abstract

• Zanthoxylum armatum DC. is an aromatic medicinal plant belonging to the family Rutaceae has been undertaken. They were collected from Loikaw Township, Kayah State during from September to November 2019. The collected plants were identified, classified, and studied by the literature. The morphological characters of vegetative and reproductive parts and microscopical characters of the leaves and fruits were conducted to ascertain their correct identification. The plant was small tree with thorny branches. Leaves were distinctly trifoliate with wing leaf-stalk. Inflorescence were terminal, axillary and bracts presented. Petals were absent. For microscopical studies, lamina, midrib, petiole and fruits were examined by preparing free hand sections. The upper surface of the lamina was polygonal in shaped and lower surface was wavy. Stomata present only on lower surface were numerous and anomocytic type. In transverse section of lamina, calcium oxalate crystals were presented in palisade layer. The preliminary phytochemical tests were examined from the powdered fruits. Alkaloid, carbohydrate, flavonoid, glycoside and phenolic compound, saponin and tannin were present in this examination. The nutrient contents of powdered fruits were analyzed protein, fat, fiber and carbohydrate by using David Pearson and Kieldaha method. Antimicrobial activities of various crude extracts of fruits were carried out by using paper disc diffusion method with six test organisms. Acetone and ethyl acetate extracts indicated more effective against on Candida albicans than other tests organisms. Medicinal plants contained numerous biologically active compounds which are used for helpful in improving the human health.