Now showing items 1-10 of 30
Struktuurondersoek van die isoflavanoïde uit Neorautanenia ficifolia (Benth ex Harv.) C.A. Sm.
(University of the Free State, 1965-01)
Abstract not available
The constitution of oligomeric benzofuranoids
(University of the Free State, 1999-05)
English: Berchemia zeyheri is known for its unique red heartwood, a property that was probably responsible for the first phytochemical investigation into the flavonoid content of this tree. The heartwood contains a unique ...
Identification and expression analysis of flavonoid biosynthetic genes in the genus Clivia
(University of the Free State, 2010)
English: Anthocyanins belong to a large group of secondary plant metabolites, the flavonoids, and fulfil a range of biological functions that include the cyanic pigmentation they provide to flowers, fruits, vegetables and ...
Epimesquitol-flavone dimers and related oligomers from Acacia nigrescens synthesis of 3',4',7,8-substituted flavonoid monomers
(University of the Free State, 2001-11)
English: The previous investigation, by Fourie in the 1970's, revealed the presence of phenolic compounds in the heartwood of Knobwood (Acacia nigrescens), comprising a series of leucomelacacinidins. Early suggestions that ...
'n Ondersoek na die antibakteriese eienskappe van Carpobrotus edulis L.
(University of the Free State, 1999-11)
English: In the folk medicine of South Africa, many traditional medicinal plants are used by both the rural and a small percentage of the city population. One of these plants is Carpobrotus edulis L. An investigation of ...
Structure and synthesis of polyphenols from cyclopia subternata
(University of the Free State, 2002-06)
English: Cyclopia subternata (Fabaceae), from which Honeybush tea is brewed, is one of approximately 24 Cyclopia species of woody legumes endemic to the Cape fynbos (Cape macchia) region of South Africa. Supported by results ...
Synthesis of isoflavonoid-neoflavonoid oligomers
(University of the Free State, 1999-08)
English:A recent phytochemical study on the heartwood of the Purplewood Dalbergia (Dalbergianitidula) in our laboratories led to the isolation of the first pterocarpan-neoflavonoid dimers, Daljanelins A-C, and an ...
Biflavonoied diastereo-isomere en hul biogenetiese voorlopers uit Berchemia SPP.: pogings tot sintese van analoe
(University of the Free State, 1976-02)
Afrikaans: Hierdie studie behels die struktuurondersoek, omskakelingsreaksies en pogings tot sintese van sommige van die mono- en biflavonoïede uit die kernhout van Berchernia zeyheri met 'n aanvullende studie op die ...
Sintese en struktuur van Pirano-isoflavanoïede
(University of the Free State, 1977-01)
Afrikaans: Die medisinale gebruik (waarskynlik as antiseptikum) van die bas van Dalbergia nitidula Welw. ex Bak. (Leguminosae) deur inboorlinge het tot die huidige chemiese ondersoek aanleiding gegee. Hierdie ondersoek ...
The structure and synthesis of trimeric and related dimeric Proteracacinidins from Acacia heteroensis.
(University of the Free State, 2002-07)
English: The presence of 4', 7,8-trihydroxyl substituted flavanoids in plant material is limited to Acacia galpinii and Acacia caffra in Southern Africa. The existence of pyrogallol-type A-ring oligomers in these trees was ...