CHARACTERIZATION OF MORPHOLOGICAL AND BIOLOGICAL ACTIVITY OF EXTRACTS POGOSTEMON AURICULARIUS (L.) HASSK COLLECTED IN THAI NGUYEN

Abstract

Pogostemon auricularius (L.) Hassk is one of many species of herbs in the Lamiaceae family, widely used in tropical waters. P. auricularius is a herbaceous plant that grows in many countries, especially tropical such as India, Sri Lanka, Bangladesh, and China. For Vietnamese traditional medicine, the herbal is also used for fever, snake bite, sore throat, skin diseases, stomachache, digestive disorders, kidney pain and rheumatism. In this study, the anatomical structure of roots, stems, and leaves of P. auricularius was described by the method of microscopic anatomy. Antibacterial and antifungal resistance activities of P. auricularius extract have been evaluated. The ethanol extract of P. auricularius inhibited 4 bacterial strains (P. aeruginosa, E. coli and S. aureus, C. freundii) and 3 fungal strains (C. albican, A. brasiliensis and A. flavus). The inhibition activity depends on the concentration of extract used. Compared with antibiotics, the concentration of 100 g/mL has better antibiotic and antifungal activity.