Results 161 to 170 of about 8,216 (187)

Antioxidant properties of African mahogany (Khaya senegalensis (Desr.) A. Juss.) seed oil

African Research Reports
This study investigated the phytochemical constituents and antioxidant properties of Khaya senegalensis seed oil. Using standard analytical methods, the presence of saponins, steroids, terpenoids, cardiac glycosides, alkaloids, and proteins was confirmed,
E. Obahiagbon, Matthew Ogwu
semanticscholar   +1 more source

Extractives from the seed of Khaya senegalensis

Journal of the Chemical Society C: Organic, 1967
An examination of the seed of Khaya senegalensis A. Juss has given the known compounds khivorin and 7-deacetoxy-7-oxokhivorin, together with 3-deacetylkhivorin and a compound which is probably 7-deacetoxy-3-deacetyl-7-oxokhivorin. Examination of the nuclear magnetic resonance spectrum of 3-deacetylkhivorin shows that it is a 1α-7α-diacetoxy-3α-hydroxy ...
E. K. Adesogan, J. W. Powell, D. A. H. Taylor   +2 more
openaire   +1 more source

Extractives from Khaya senegalensis(Desr.) A. Juss

Journal of the Chemical Society C: Organic, 1968
The timber, bark, root bark, roots, leaves, and seeds of Khaya senegalensis have been extracted with light petroleum. The known compounds 7-deacetoxy-7-oxokhivorin, khayasin, khivorin, methyl angolensate, mexicanolide, and 7-deacetoxy-7-oxogedunin have been isolated, together with a number of new compounds.
E. K. Adesogan, D. A. H. Taylor
openaire   +1 more source

Khayanolides, rearranged phragmalin limonoid antifeedants from Khaya senegalensis

Tetrahedron, 2001
Abstract Three new rearranged phragmalin-type limonoids, named khayanolides A, B and C, were isolated as insect antifeedant together with four known rings B,D-seco compounds, seneganolide, methyl angolensate and its 6-hydroxy and 6-acetoxy derivatives from the ether extract of the stem bark of Khaya senegalensis.
Samir A.M Abdelgaleil, Hiroaki Okamura, Tetsuo Iwagawa, Atsuko Sato, Ikuko Miyahara, Matsumi Doe, Munehiro Nakatani   +6 more
openaire   +1 more source

New Structurally Diverse Limonoids from the Seeds of Khaya senegalensis

Planta Medica, 2016
Twelve new limonoids (khasenegasins O-Z; 1-12) with three different kinds of skeletons, including eight mexicanolides, two gedunins, and two andirobins, together with four known limonoids (13-16) were isolated from the seeds of Khaya senegalensis. Their structures were determined by extensive spectroscopic analyses (HR-ESI-MS, 1D/2D NMR), and the ...
Xiaomeng, Tian, Hui, Li, Faliang, An, Ruijun, Li, Miaomiao, Zhou, Minghua, Yang, Lingyi, Kong, Jun, Luo   +7 more
openaire   +2 more sources

Effect of single and combination therapy on methanol extracts of Khaya senegalensis stem bark, Vernonia amygdalina leaves and Garcinia kola seed in Leptospira interrogans-infected mice.

Journal of Ethnopharmacology
ETHNOPHARMACOLOGICAL RELEVANCE Pastoralists in Nigeria mix Garcinia kola seed (GK), Khaya senegalensis stem bark (KS), and Vernonia amygdalina leaves (VA) to treat leptospirosis.
E. Abiayi, J. Itelima, F. Onwuliri, David Chinedu Abiayi, C. Udechukwu, K. O. Jolayemi, Daniel Chibuzo Abiayi, George Agida, G. Forcados   +8 more
semanticscholar   +1 more source

The Effects of Ethanolic Stem-Bark Extract of Khaya senegalensis on Fertility Parameters and Hormones on Male Wistar Rat

Natural Product Communications
Background The recent increase in interest in alternative medicine calls for an investigation into the non-target organ effect. Khaya senegalensis is one of such popular plants used to manage malaria in low-income countries. This study therefore aimed at
Manasseh B. Wireko, Sallah Lorraine, Peter N. Coffie, Roberta Y. Asiwu, Max E. Ananni-Akollor, Nicholas A. Titiloye, B. M. Duduyemi   +6 more
semanticscholar   +1 more source

Plant gums of the genus Khaya. Part V. Further studies on Khaya senegalensis gum

Journal of the Chemical Society C: Organic, 1970
The fractionation of deacetylated Khaya senegalensis gum has been re-examined. The main component of the gum, polysaccharide A, has been converted into the carboxy-reduced derivative, and oligosaccharides formed on acetolysis of the modified polysaccharide have been shown to include 4-O-rhamnopyranosylgalactose (I), 4-O-galactopyranosylgalactose (II ...
G. O. Aspinall, A. K. Bhattacharjee
openaire   +1 more source

In vitro propagation of the African mahogany Khaya senegalensis

New Forests, 2010
A protocol was developed for shoot proliferation and plantlet formation of Khaya senegalensis, an important medicinal and timber plantation species introduced to Australia and southern Asia from western and central Africa. We assessed effects of the plant growth regulators, benzyladenine, kinetin, naphthalene acetic acid and gibberellic acid, on shoot ...
Hung, C D, Trueman, S J
openaire   +2 more sources

Phytochemicals and antibacterial activity of Khaya senegalensis leaves extract using different solvent

Biological sciences
The phytochemical content as a major source of new antibiotics due to the presence of phytochemicals. The goals of research to evaluate the phytochemical and antibacterial activity of Khaya senegalensis leaves extracts.
N. Muhammad, R.S. Saidu, B. Abdullahi, C. Odenigbo, Zayyanu Iyya   +4 more
semanticscholar   +1 more source