A phytochemical investigation of Acridocarpus Natalitius and Typha Capensis.
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Date
2001
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Abstract
In the present study, a phytochemical investigation of two medicinal plants, namely,
Acridocarpus natalitius and Typha capensis is presented.
The roots of A. natalitius afforded a variety of pentacyclic triterpenoids, namely,
friedelin [41], epi-friedelinol [42], lupeol [43] and oleanolic acid [44], including
stigmasterol [45] from the hexane extract, whilst the methanolic extract produced a
flavonoid, (-)-epicatechin [4] and carbohydrates which included glucose [64] and
sucrose [65].
Two new bibenzyls were isolated from the hexane extract of the rhizhomes of T.
capensis, namely, typharin [47] and typhaphthalide [48]. β-Sitosterol [49] was also
isolated. The acetone extract afforded several flavan-3-ols which were isolated in
their free phenolic form. These include, afzelechin [10], epiafzelechin [23], (+)catechin
[11] and (-)-epicatechin [4]. A biological survey was carried out on the
crude methanolic extract in an independent survey and a brief discussion is presented
here.
All the compounds were isolated using a series of chromatographic techniques and
structures were elucidated by means of NMR spectroscopy, infrared spectroscopy and
mass spectrometry.
Description
Thesis (M.Sc.)-University of Durban-Westville, 2001.
Keywords
Theses--Chemistry.