期刊
PHYTOCHEMISTRY
卷 63, 期 2, 页码 221-225出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0031-9422(02)00751-3
关键词
Aristolochia argentina; Aristolochiaceae; Charrua; essential oil; Argentilactone; undecatrienes; olfactive properties; carcinogenic alpha,beta-unsaturated lactones
The essential oils from leaves, aerial stems and underground organs of Aristolochia argentina Gris., a medicinal plant popularly known as charrua, were obtained by hydrodistillation and analyzed by GC and GC/MS. Forty-three components were identified in the oils. All parts of the plant afforded volatile oils characterized by high levels of argentilactone (57-89%) and the presence of undecatriene isomers (0.3-4.0%), these latter compounds providing the essential oils and extracts with an intense particular odor. Terpenes account for the remaining portion of the essential oils (5-29%). Bicyclogermacrene predominates in the aerial parts of the plant, whereas ishwarane is the main terpene of the subterranean organs. Argentilactone, a suspected carcinogenic compound, was also identified in a medicinal commercial tincture of A. argentina. (C) 2003 Elsevier Science Ltd. All rights reserved.
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