The constituents of the leaf oil of Chromolaena odorata (L.) R. M. King and H. Robinson from Vietnam

The essential oil of C. odorata from Vietnam, obtained by steam distn. of the leaves, was analyzed by a combination of gas chromatog. (GC) and GC/mass spectrometry. More than 40 components were found, with geijerene (42.5%) and b-cubebene (12.5%) as major constituent

The essential oil of Amomum tsao-ko Crevost et Lemarie from Vietnam

The essential oil of the seeds of A. tsao-ko of Vietnamese origin was analyzed by a combination of gas chromatog. and gas chromatog./mass spectrometry. Twenty-one components were identified, of which the major ones were 1,8-cineole (30.6%), 2-decenal (17.3%), geranial (10.6%), and neural (7.0%

Recent developments in the study of compositae from Vietnam

The Compositae is one of the largest, most diverse and most important families in the flora of Vietnam. Several species of this family have been used as sources of natural material for food, in the production of herbicides, growth regulators, drugs in traditional and modem medicines, etc. Recent developments in chemical and botanical studies of some genera of Compositae from Vietnam: Artemisia, Ageratum, Blumea and Eupatorium, are discussed

Recent developments in the study of compositae from Vietnam

The Compositae is one of the largest, most diverse and most important families in the flora of Vietnam. Several species of this family have been used as sources of natural material for food, in the production of herbicides, growth regulators, drugs in traditional and modem medicines, etc. Recent developments in chemical and botanical studies of some genera of Compositae from Vietnam: Artemisia, Ageratum, Blumea and Eupatorium, are discussed