Analysis of essential oils in Chrysanthemum zawadskii in Korea

The essential oils of Chrysanthemum zawadskii Herbich, C. zawadskii var. latilobum (Maxim.) Kitam, C. zawadskii Herb. ssp. Naktongense (Nakai) T. Lee, C. zawadskii var. leiophyllum (Nakai) T. Lee, and C. zawadskii var. tenuisectum Kitaqawa were obtained by steam distillation, using a simultaneous steam distillation-extraction apparatus, from the above ground parts of plants cultivated in the herbal garden of Duksung Women's University. The compositions of the oils were analyzed by gas chromatography-mass spectrometry and compared. Additionally, their inhibiting activities were investigated by broth dilution method against antibiotic-susceptible and resistant strains of Streptococcus pneumoniae. Analyses resulted in tremendous diversity in composition of essential oils among the species and the varieties. The predominantly contained compound of essential oils from Chrysanthemum species were camphor (13.00%), myrtenol (11.97%) and germacrene D (17.02%). Additionally, all of the tested Chrysanthemum zawadskii essential oils significantly inhibited growth of S. pneumoniae with MICs ranging from 0.5mg/mL to 1mg/mL.

Reference: 1. Shin, S., Lim, S. (2005), Arch. Pharm. Res. 7: 765–769.