Hans W. Rauwald and Anette Beil Institut für Pharmazeutische Biologie, Johann Wolfgang Goethe-Universität, Georg-Voigt-Straße 16, D-W-6000 Frankfurt am Main 11, Bundesrepublik Deutschland Z. Naturforsch. 48c, 1 -4 (1993); received December 12, 1992 Aloe, Asphodelaceae, 5-Hydroxyaloin A, Quinones, Chemotaxonomy By a comparative thin layer chromatographic screening of the methanol-soluble leaf ex...

Aloe greatheadii var. davyana is the most important indigenous South African bee plant. Fresh, bee-collected and stored pollen of this aloe was collected and analysed for its nutritional content, including amino acid and fatty acid composition. Highly significant differences were found between the three types of pollen. Collection and storage by the bees resulted in increased water (13-21% wet ...