Results 141 to 150 of about 8,216 (187)

Two new compounds fromKhaya senegalensis

Journal of Asian Natural Products Research, 2013
Two new compounds, khayseneganin I (1) and 2α,3α,16β-trihydroxy-20-acetoxy-20(R)-pregnane (2), along with six known compounds, 2α,3α,20-trihydroxy-16β-acetoxy-20(R)-pregnane (3), 2α,3β-dihydroxypregnan-16-one-2β,19-hemiketal (4), (+)-catechin (5), ivorenolide A (6), luteolin-7-O-α-l-rhamnoside (7), and ( - )-5'-methoxy-isolariciresinol-2a-O-β-d ...
Chun-Mao, Yuan, Gui-Hua, Tang, Xiao-Ying, Wang, Yu, Zhang, Feng, Guo, Jin-Hua, Liao, Tao, Zou, Guo-Ying, Zuo, Hui-Ming, Hua, Hong-Ping, He, Xiao-Jiang, Hao   +10 more
openaire   +2 more sources

Rearranged limonoids from Khaya senegalensis

Phytochemistry, 1996
Abstract The stems of Khaya senegalensis yielded three limonoids which appear to be novel. These compounds were identified on the basis of spectroscopic analysis as methyl 1α,6,8α,14β,30β-pentahydroxy-3-oxo-[3.3.1 10,2 .1 1,4 ]-tricyclomeliac-7-oate; methyl 1α,2β,3α,6,8α,14β-hexahydroxy-[4.2.1 10,30 .1 1,4 ]-tricyclomeliac-7-oate and methyl 1α ...
Lis R.V. Olmo, M.Fátima das G.F.da Silva, Edson Rodrigues Fo, Paulo C. Vieira, João B. Fernandes, Anita J. Marsaioli, Antônio L. Pinheiro, Evaldo F. Vilela   +7 more
openaire   +1 more source

Limonoids and Triterpenoids from Khaya senegalensis

Journal of Natural Products, 2010
Seven new limonoids (1-7), named khayalenoids C-I, three new triterpenoids (8-10), named senegalenes A-C, and eight known limonoids have been isolated from stems of Khaya senegalensis. The structures of these compounds were elucidated on the basis of spectroscopic analyses.
Tao, Yuan, Chuan-Rui, Zhang, Sheng-Ping, Yang, Jian-Min, Yue   +3 more
openaire   +2 more sources

LONG TERM STORAGE OFKHAYA SENEGALENSISSEEDS

International Tree Crops Journal, 1999
SUMMARY Khaya senegalensis (Desr.) A. Juss. is an African mahogany species from dry tropical zones. The present study aims at defining the optimum storage conditions in order to retain the viability of seeds of this species in the long term. Monitoring has been going on for four years.
Danthu, P., Gaye, A., Sarr, A.
openaire   +2 more sources

Limonoids from leaves of Khaya senegalensis

Phytochemistry, 1997
Abstract The leaves of Khaya senegalensis yielded two new limonoids. These compounds were identified on the basis of spectroscopic analysis as methyl 1α-acetoxy-3β,6,8α-trihydroxy-2α-methoxy-2β,14β-epoxy-[4.2.1 10,30 .1 1,4 ]-tricyclomeliac-7-oate and methyl 1α-acetoxy-6,8α,14β,30β-tetrahydroxy-3-oxo [3.3.1 10,2 .1 1,4 ]-tricyclomeliac-7-oate ...
Lis R.V. Olmo, M.Fátima das G.F. da Silva, Edson Rodrigues Fo., Paulo C. Vieira, João B. Fernandes, Antônio L. Pinheiro, Evaldo F. Vilela   +6 more
openaire   +1 more source

Antifungal limonoids from the fruits of Khaya senegalensis

Fitoterapia, 2004
Investigation of the fruits of Khaya senegalensis resulted in the isolation of three new mexicanolide limonoids containing a rare conjugated diene lactone system named seneganolide A (1), 2-hydroxyseneganolide A (2) and 2-acetoxyseneganolide A (3). Two known limonoids, 3-deacetyl-7-deacetoxy-7-oxokhivorin (4) and methyl 6-hydroxyangolensate (5), were ...
Samir A M, Abdelgaleil, Tetsuo, Iwagawa, Matsumi, Doe, Munehiro, Nakatani   +3 more
openaire   +2 more sources

EFFECT OF MAHOGANY (KHAYA SENEGALENSIS) LEAF EXTRACT ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS AND NUTRIENT DIGESTIBILITY OF BROILER CHICKENS IN SEMI-ARID ZONE OF NIGERIA

FUDMA Journal of Animal Production and Environmental Science
A study was conducted using two hundred (200) day old broiler chickens to investigate the effect of Mahogany (Khaya senegalensis) leaf extract on the growth performance, carcass characteristics and nutrient digestibility of broiler chickens in Semi-Arid ...
M. Yaduma, I. Kwari, H. Duwa, S.I. Balami, A.M. Kaanti   +4 more
semanticscholar   +1 more source

Three New Modified Limonoids from Khaya senegalensis

Journal of Natural Products, 2002
Three new rings B/D opened limonoids, two rearranged phragmalin limonoids named khayanolides D and E (1 and 2), and one limonoid glucoside named khayanoside (3) were isolated as insect antifeedants from the stem bark of Egyptian Khaya senegalensis. The structures of these compounds were established by spectroscopic methods, including 2D NMR and CD.
Munehiro, Nakatani, Samir A M, Abdelgaleil, Shihata M I, Kassem, Ken, Takezaki, Hiroaki, Okamura, Tetsuo, Iwagawa, Matsumi, Doe   +6 more
openaire   +2 more sources

Antimicrobial mexicanolide limonoids from the seeds of Khaya senegalensis

Journal of Asian Natural Products Research, 2021
Three new mexicanolide limonoids were obtained from the 90% ethanol extract of the seeds of Khaya senegalensis. Their structures were elucidated as senegalenines A-C (1-3) by analysing their 1D/2D NMR and MS spectroscopic analysis. In addition, the isolated limonoids were tested in vitro for antimicrobial potentials against 5 pathogenic microorganisms.
Yue-Hong, Jiang, Ting-Jun, Jiang, Xiao-Feng, Lv, Xiao-Fei, Yu, Wei-Qun, Chi   +4 more
openaire   +2 more sources

Efficacy of neem seed oil and khaya senegalensis bark extracts on Afrormorsia axiflora wood species exposed to termites infestation

Caliphate Journal of Science and Technology
This study aimed to determine the absorption rate and to estimate the weight loss of Afrormosia laxiflora and Triplochiton scleroxylon exposed to subterranean termites after treatment with these extracts over varying durations.
Umar Zayyanu, A. Nasiru, Abubakar Bello, H. M. Bandiya   +3 more
semanticscholar   +1 more source