RESEARCH ON ANATOMICAL STRUCTURE AND ANTIMICROBIAL ACTIVITY OF ETHANOLIC EXTRACT FROM RHIZOMES OF Curcuma singularis Gagnep

Abstract

Curcuma singularis Gagnep. was first recorded for the flora of Vietnam in 2016 of which the specimen collected from Kbang district, Gia Lai province, Vietnam. This research was conducted to describe the morphological and anatomical structures of root, rhizome, petiole, and leaf blade of C. singularis. The antibacterial activities of the ethanol extract obtained from C. singularis rhizomes were determined by using diffusion agar plate, the minium inhibitory concentration (MIC) and the minium bacterium kill concentration (MBC). As a result, the anatomical structures of C. singularis showed that the structural characteristic of the rhizome possesses many medullary bundles in the cortex; and secretory cells in parenchyma in the root and rhizome; leaf blade and leaf shearth have many vascular bundles arranged in rows the epidermis on the leaf blade is covered with multicellular hairs. The ethanol extract isolated from C. singularis rhizomes was found to be effective against several bacterial strains, including Methicillin sensitive Staphylococcus areus (MSSA), Methicillin resistant Staphylococcus areus (MSSA), Pseudomonas aeruginosa and Escherichia coli.