Restoration of degraded dry semideciduous forest ecosystems. When fresh, the colour difference between sapwood and heartwood is not great, but later, under the effects of. It is threatened by habitat loss khaya ivorensis is a species in the african mahogany family. Both compound 1 and its synthetic enantiomer 2 showed potent and selective immunosuppressive activity. In recent years, the ihaya states market has dominated the international trade in khaya timber, especially as a substitute for american mahogany from swieteniathe availability of which has declined considerably. The inhibition efficiencies of the gum were found to increase. The species is reported to be found in all the timber producing areas of west africa, from ivory coast to gabon and cabinda, and is primarily found in the ivory coast, ghana, and nigeria. All structured data from the file and property namespaces is available under the creative commons cc0 license. Four limonoids, 1odeacetyl6deoxykhayanolide e 1, 1odeacetyl2. Chemical investigation of the diethyl ether extract of the stem bark of khaya ivorensis a chev meliaceae afforded ten limonoids of angolensates, ring d. Khaya senegalensis, also known as african dry zone mahogany or mubaba in the shona language, is also used. The wood of both species and that of khaya grandifoliola c. The gum was found to be soluble in water but insoluble in acetone, chloroform and sparingly soluble in ethanol indicating that the gum is ionic. The inhibitive effect of khaya ivorensis gum exudate ki for the corrosion of mild steel in hcl medium has been evaluated using the weight loss, gasometric, and thermometric techniques.
Adsorption and inhibitive properties of khaya ivorensis. Wood quality of xylia xylocarpa and khaya ivorensis planted in sabah by james josue thesis submitted to the school of graduate studies, universiti putra. Usually, the sapwood is 3080 mm thick, yellowish to light pink. African mahoganys khaya ivorensis is a very large tree that attains a height of 4050 m and a dbh of up to 2 m. Forestry research institute of ghana trial plots at benso in the wet evergreen forest ecological zone on ghana. Dilleniaceae are among the plants listed by the nigerian natives which are implicated in curing skin diseases. Hardness of the wood varied from soft to moderate hard. Meliaceae, a source of one of the most popular traditional african. Soon after planting, 20 grams of npk 103010 per plant were applied to side pits.
Khaya ivorensis is a species in the african mahogany family. Common names africanmahogany in english ivory coast khaya in english lagosmahogany in english. In some cases, dark reddish brown heartwood was easy to distinguish from pale yellowish brown sapwood. Tree growing in the african section of hoomaluhia botanical garden on oahu is it terminalia ivorensis.
Wood database and searchable library woodworkers source. Khaya senegalensis is a multipurpose african timber species. African mahogany is the common name for a multitude of species variants, the two most common of which are khaya ivorensis and khaya senegalensis at j. Harvested from central africa, our khaya ivorensis is known to offer a more consistently unifom color, and an evenly textured grain, compared to other species. African mahogany lumber wholesale supplier khaya ivorensis. Antifungal activity of limonoids from khaya ivorensis. After several years, this colour becomes slightly irregular. Pdf first report of parasaissetia nigra in khaya ivorensis. Potential of a khaya ivorensis alstonia boonei extract combination as antimalarial prophylactic remedy. Ivorenolide a 1, a novel 18membered macrolide featuring conjugated acetylenic bonds and five chiral centers, was isolated from khaya ivorensis. Interlocked grain is difficult to surface without tearing. Gum exudate from khaya ivorensis was evaluated for their physicochemical and rheological properties.
We would like to show you a description here but the site wont allow us. Advanced query of grin taxonomy species data grin is managed by the database management unit dbmu of the national germplasm resources laboratory, agricultural research service, usda. The fatigue properties of wood in flexure pdf free download. Ecogeographic variation in leaf morphology of african mahogany khaya anthotheca and khaya ivorensis provenances in ghana. Khaya ivorensisjuss melianceae and tetracera potatoria l. Two new limonoids, namely 14,15didehydroruageanin a 1 and 3omethyl butyrylseneganolide a 2, were isolated from the fruits of khaya ivorensis along with six known limonoids. All the compounds were evaluated for their cytotoxicity. General information khaya ivorensis is a very large evergreen tree which can be deciduous in drier climates, that attains a height of 40 50 metres303. The wood is moderately durable and can be susceptible to termite and pinhole borer attacks. The diverse structures and significant biological activity of limonoids isolated from the meliaceae family have prompted continuous studies on this group of metabolites taylor, 1984, champagne et al. Text is available under the creative commons attributionsharealike license. Often further classified as to port of shipment or country of origin.
Ivorenolide b 1, an unprecedented 17membered macrolide featuring conjugated acetylenic bonds and four chiral centers, was isolated from khaya ivorensis. Pdf physicochemical characterization of exudates from. Aircraft, both acoustic and architectural panels, cabinetry, doors, millwork and furniture, as well as boat building. Spatial characteristics and economic value of threatened. The structure of 1 was fully determined by spectroscopic analysis, singlecrystal xray diffraction, and bioinspired total synthesis.
Aug 29, 2014 this page was last edited on 22 december 2019, at 05. Install mahogany crotch veneer sheets at your space for classy look. The development of clonal propagation could improve plantation establishment, which is currently impeded by mahogany shoot borer. Title world agroforesty centre publication author website. Rotarycut khaya was introduced later for the second generation blades and subsequently incorporated into the test program. Principally differentiation is made between two species.
Khaya ivorensis wood is exported from west african countries in mixed consignments with other khaya spp. Khaya ivorensis khaya senegalensis natural durability fungal decay termite damage abstract african mahogany khaya spp. Files are available under licenses specified on their description page. Treatment of urea manufacturing facility effluent by hopea. The heartwood is yellowish brown to pale pinkish brown. Sep 01, 2011 potential of a khaya ivorensis alstonia boonei extract combination as antimalarial prophylactic remedy. Khaya ivorensis is greatly used as timber and little is known about its extracts especially the essential oil of the seed. The wood of khaya anthotheca is very similar to that of khaya ivorensis. The grain is usually straight, sometimes slightly interlocked.
The color of khaya ivorensis heartwood varied from pale yellowish brown to deep reddishbrown. Navigation menu personal tools log in request account. Freshly cut, khaya has a pink colour, discolouring from pinkred to brownred. Khaya mahogany swirl wood veneer heartwood varies from light golden red tones to deeper reds. Download fulltext pdf first report of parasaissetia nigra in khaya ivorensis seedlings in brazil article pdf available in floresta e ambiente 263.
The structures of compounds 14 were established on the basis of extensive spectroscopic analysis. In this study, takhian hopea odorata and lagos mahogany khaya ivorensis, two tropical timber plants, were investigated for their performances in treatment of urea manufacturing factory effluent with high nitrogen n content. This true african mahogany veneer finishes beautifully and also has high luster. Department of agriculture agricultural research service. Phytoremediation is an environmentally friendly and sustainable alternative for treatment of nitrogenenriched wastewaters.
Batista, 2010, sendo ainda classificada como especie pioneira ou secundaria tardia e emergente. Bole straight, unbranched up to 30 m above the ground with welldeveloped plank buttresses. Ivorenolide b, an immunosuppressive 17membered macrolide. African journal of environmental science and technology 412. Meliaceae, a source of one of the most popular traditional african medicines, is mainly. The present study was carried out to determine the antibacterial properties of the essential oils of these plants against the selected bacterial isolates and to establish or. Please base your medical decisions only on the advice of a doctor or a registered medical professional. Ivorenolide a, an unprecedented immunosuppressive macrolide. The sliced veneers were used in the hwp300 wtg blades and supplies were from the consignment used for the manufacture of the blades. Acajou dafrique page 1 of 3 tropix 7 19982012 cirad dissemination without express authorization is prohibited 11262014 family.
Khaya ivorensis khaya grandifoliola commercial restriction. Gibson mcilvain, we only stock a couple of these species, and we keep close track of which is which so we can supply consistency in color, grain, and workability to our customers. Chemical investigation of the diethyl ether extract of the stem bark of khaya ivorensis a chev meliaceae afforded ten. Jun 04, 2019 this page was last edited on 4 june 2019, at 09. Khaya ivorensis in the germplasm resources information network grin, u.
Tepongning rn1, lucantoni l, nasuti cc, dori gu, yerbanga sr, lupidi g, marini c, rossi g, esposito f, habluetzel a. Antibacterial and toxicological properties of essential oils. Khaya definition is a genus of african timber trees family meliaceae with wood closely resembling mahogany. Khaya ivorensis was supplied as 4 mm thick veneers in two forms, sliced and rotary cut. Khaya ivorensis is the highest quality lumber in the african mahogany family, and is considered an acceptable and costconscious alternative to genuine mahogany sweitenia macrophylla. Khaya ivorensis name synonyms khaya caudata stapf khaya caudata stapf ex hutch. Unlike other khaya species which do not require much rainfall, it is reported to grow in the rain forest in lowlying areas within its range. Radial growth dynamics of khaya ivorensis trees from experimental plantation radial growth dynamics of khaya ivorensis trees from experimental plantation.
Antifungal activity and phytochemical screening of the crude. General information khaya ivorensis is a very large evergreen tree which can be deciduous in drier climates, that attains a height of 40 50 metres. The timber of khaya is called african mahogany, with properties generally regarded as the closest to genuine mahogany. Buy mahogany crotch natural wood veneer from decowood veneers to enhance the style of your home. Khaya ivorensis, also called african mahogany or lagos mahogany, is a tall forest tree with a buttressed trunk in the family meliaceae. The structure of 1 was fully determined by spectroscopic analysis and total syntheses of its four most possible stereoisomers. A khaya ivorensis e planta heliofila, porem tolerante a sombra durante a fase jovem foli, 2000. This page was last edited on 22 december 2019, at 05. It is found in angola, cameroon, cote divoire, gabon, ghana, liberia, and nigeria where it grows primarily in lowland tropical rainforests. Influence of the nutritional aspects on initial growth of. Khaya antotheka cannot be sliced due to the hardness of this wood.
Besides the generic trade names african mahogany and khaya, trade names of specific taxa are usually associated with country or port of origin. Munyama uganda, acajou dafrique ivory coast, dubini, dukuma fufu ghana, ogwango nigeria. Meliaceae comprises six species of mahogany from africa and madagascar the plant list, 20, and among them, khaya ivorensis a. Both compound 1 and its synthetic enantiomer 2 showed potent and selective immunosuppressive. These results only indicate the perceptions of the website users. Khaya ivorensis oganwo in yoruba occurs in the moist forest where it is recognised by its dark bark and oblong leaflets which are distinctly accuminate keay et al. Usually sold as either quartered or flat sawn grain. Potential of a khaya ivorensis alstonia boonei extract. The following are the results of ongoing survey on for khaya ivorensis. Antifungal activity and phytochemical screening of the. Considering all the african mahogany species, khaya ivorensis is one of the most planted in brazil, due to its high wood quality and appearance, similar to swietenia macrophylla pinheiro et al.
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