The genus Artemisia, belonging to the family Asteraceae, includes more than 500 species of herb and shrubs. Artemisia species are perennial herbs that grow about 60–120 cm height and propagate rapidly through horizontal extending rhizomes. Their ste...
The genus Artemisia, belonging to the family Asteraceae, includes more than 500 species of herb and shrubs. Artemisia species are perennial herbs that grow about 60–120 cm height and propagate rapidly through horizontal extending rhizomes. Their stems and leaves are covered with fine, web-like white hairs, and the leaves are deeply divided into fan-shaped or feather shape. The upper surfaces of the leaves are light green, while the undersides grayish-white due to the white hairs The purpose of this study is to investigate the species-specific compounds found in Artemisia plants, as different species contain different amounts of various compounds and have different uses. This research focuses to identify the compounds that are specifically abundant in certain Artemisia species and to explore related compound families. In this study, 70% ethanol extracts were prepared from thirteen Artemisia species: Artemisia annua, A. littoricola Kitam., A. stolonifera (Maxim.) Kom., A. iwayomogi Kitam., A. rubripes Nakai, A. keiskeana Miq., A. scoparia Waldst & Kitam., A. capillaris Thunb., A. montana (Nakai) Pamp., A. sieversiana Ehrh. ex Willd, A. indica Willd, A. argyi H.Lév. & Vaniot, and A. anomala S. Moore. Species-specific compound isolation was conducted using these extracts, and molecular networking was applied to visualize the distribution of metabolites across the thirteen Artemisia species. UHPLC-MS analysis was conducted on three solvent fractions (n-hexane, EtOAc, and n-BuOH) of both species under a single positive ionization mode. Using data preprocessing software and the GNPS (Global Natural Products Social Molecular Networking) visualization platform. Species-specific compounds were isolated from these extracts, and molecular networking was applied to visualize the distribution of metabolites across the thirteen Artemisia species. In this study, to isolate species-specific compound from A. keiskeana and A. anomala, an experiment was conducted from 70% ethanol extract of the whole plant of A. keiskeana and A. anomala. A total of ten compounds were isolated, compounds 1-2 are coumarins specifically and abundantly found in A. keiskeana. Compounds 3-6 are simple coumarins or biscoumarins, compound 7-8 are phenylpropanoids, and compounds 9-10 are dipeptides specifically distributed in A. anomala. The isolated compound 1-10 were spectroscopic and physicochemical analyses identified these compounds as Isofraxidin (1), Daphnoretin (2), Umbelliferone (3), 7,7′-Dihydroxy-8,8′-biscoumarin (4), Bicoumol (5), Scopoletin (6), 3,4-Di-O-caffeoylquinic acid methyl ester (7), 3,5-Di-O-caffeoylquinic acid methyl ester (8), Aurantiamide (9), and Asperglaucide (10). confirmed the presence of compounds 1-10 were isolated and structurally characterized.