부산대학교 도서관

Medicinal plants are a rich source of secondary metabolites. In the present study, the dried aerial parts of Dracocephalum kotschyi Boiss were extracted using the digestion method. Copper nanoparticles were synthesized by combining the extract with a copper chloride solution at a ratio of 1:4. The characteristics of copper nanoparticles were analyzed using various techniques including ultraviolet-visible spectrometry (UV-Vis), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), Brunauer-Emmett-Teller (BET), and Fourier transform infrared spectroscopy (FT-IR). The SEM analysis predicted the size of the copper nanoparticles to be 63.28 nm. The EDS spectrum confirmed the presence of copper nanoparticles. BET analysis predicted the mesoporous structure of copper nanoparticles. Thirty-one (31) compounds were identified in the essential oil of the plant, constituting 93.1% of the total composition. The eight major compounds were perilla acetate (49.3%), 2-methyl-1-octen-3-yne (17.2%), limonene (15.0%), 1,8-cineole (5.2%), trans-α-ocimene (2.4%), p-mentha-1(7),8(10)-dien-9-ol (1.1%), sabinene (1.4%), and 4-terpineol (1.5%). [ABSTRACT FROM AUTHOR]