Browsing Faculty of Science & Technology (FST) by Author "Van Wyk, Ben-Erik"
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Chemotaxonomic significance of anthraquinones in the roots of asphodeloideae (asphodelaceae)
Van Wyk, Ben-Erik; Yenesew, Abiy; Dagne, Ermias (1995)The distribution of seven anthraquinones in the roots of some 46 species belonging to the genera Asphodelus, Asphodeline, Bulbine, Bulbinella and Kniphofia was studied by TLC and HPLC, 1,8-Dihydroxyanthraquinones based on ... -
The chemotaxonomic significance of root anthraquinones and pre-anthraquinones in the genus Lomatophyllum (asphodelaceae)
Van Wyk, Ben-Erik; Yenesew, Abiy; Dagne, Ermias (University of NairobiDepartment of Chemistry, Addis Ababa UniversityDepartment of Botany, Rand Afrikaans UniversityCollege of Biological and Physical Sciences,University of Nairobi, 1995-11)The roots of seven species of Lomatophyllum were analysed by TLC and HPLC for the presence of nine different anthraquinones and pre-anthraquinones which are all known to be characteristic constituents of the subterranean ... -
Chemotaxonomic survey of anthraquinones and pre-anthraquinones in roots of Aloe species
Van Wyk, Ben-Erik; Yenesew, Abiy; Dagne, Ermias (University of NairobiCollege of Biological and Physical Sciences, 1995-04)Root samples from 172 species of Aloe were surveyed by TLC and HPLC for the presence of anthraquinones and pre-anthraquinones. With the exception of the three species of the series Serrulatae, 1,8-Dihydroxyanthraquinones ...