The purpose of this investigation was to determine the antiplasmodial activity of khaya ivorensis k and alstonia boonei a preparations in the murine malaria model plasmodium bergheianopheles stephensi, to estimate their prophylactic potential and to assess acute and subacute toxicity of the formulations prepared according to the traditional recipes. 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. All structured data from the file and property namespaces is available under the creative commons cc0 license. Four limonoids, 1odeacetyl6deoxykhayanolide e 1, 1odeacetyl2. All khaya species except khaya madagascariensis have had a long history in international trade itto, 1991. Chemical investigation of the diethyl ether extract of the stem bark of khaya ivorensis a chev meliaceae afforded ten limonoids of angolensates, ring d.
However, little is known about its culture and nutritional requirements. The study investigated the effect of different hormones on the stem cuttings of khaya ivorensis. Meliaceae is a genus of eight species mainly distributed in africa and madagascar. Comparative ecological wood anatomy of african mahogany khaya ivorensis with special reference to damage caused by hypsipyl robusta shootborer rinne e. Khaya ivorensis is a species in the african mahogany family.
Ivorenolide b, an immunosuppressive 17membered macrolide. Response of shooting hormones on the stem cuttings of khaya. Khaya ivorensis 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. The stem is rectilinear, free of branches up to 30 m in height, with thick reddish brown rhytidome and bitter taste. The aim of the present study is to evaluate the effects of khaya senegalensis ks leaves on the performance of growing male rabbits. The structures of compounds 14 were established on the basis of extensive spectroscopic analysis. The development of clonal propagation could improve plantation establishment, which is currently impeded by mahogany shoot borer. 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. Khaya ivorensis occurs scattered or in small uvorensis in iivorensis forest, usually in low densities.
The wood of khaya senegalensis resembles true mahogany from swietenia spp. Wood surface, african mahogany khaya ivorensis, full frame picture westend61. Gum exudate from khaya ivorensis was evaluated for their physicochemical and rheological properties. Coccidae in mahogany khaya ivorensis seedlings in a forest nursery. 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. Antifungal activity of limonoids from khaya ivorensis.
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. Department of biosciences, university of helsinki, po box 65, fi00014 university of helsinki, finland, email. Bole straight, unbranched up to 30 m above the ground with welldeveloped plank buttresses. Khaya species strongly resemble each other in flowers and fruits, and differences ivorensiis most prominent in their leaflets. Can someone give me any indication of the cut price per m3. Pdf first report of parasaissetia nigra in khaya ivorensis. Mar 21, 2020 khaya ivorensis pdf the tree is widely exploited for its very valuable timber, which is traded internationally, and plantations have been established in several countries. West african species are reasonably stable in service. Molecules free fulltext limonoids from the fruits of khaya.
The wood of khaya anthotheca is very similar to that of khaya ivorensis. The objectives of this study were, first, to determine and compare the growth of k. Volume equations for khaya ivorensis in brazil 3287 classes with amplitude equal to the mean value plus and minus one standard deviation. The exploitation in nontraditional areas and the suspicion about the limitation of the yield of african mahogany khaya ivorensis under water deficit stimulate the search for information to quantify the water requirement of the species in the different development stages. There was no information about the relationship between growth parameters, such as diameter and height and tree component biomass of khaya ivorensis plantations with different soil types. Khaya senegalensis is a multipurpose african timber species. Tree growing in the african section of hoomaluhia botanical garden on oahu is it terminalia ivorensis. 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. Terminalia ivorensis wikimili, the free encyclopedia wikimili, the free encyclopedia. Terminalia ivorensis is a species of tree in the family combretaceae, and is known by the common names of ivory coast almond, idigbo, black afara, framire and emeri. Potential of a khaya ivorensis alstonia boonei extract.
Restoration of degraded dry semideciduous forest ecosystems. Department of agriculture agricultural research service. Media in category khaya ivorensis the following 2 files are in this category, out of 2 total. African mahogany is one of the most economically important forest species, since it is used in the international furniture market. 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. In addition, it was established that leaf size in khaya ivorensis k. It is well known that diameter variation can help explain volume variation. May 10, 2019 khaya ivorensis pdf the tree is widely exploited for its very valuable timber, which is traded internationally, and plantations have been established in several countries. Antibacterial and toxicological properties of essential oils.
Usually sold as either quartered or flat sawn grain. Pdf chemical composition and termiticidal activity of khaya. One of the challenges facing farmers today is to ensure adequate integration of natural resources into animal feeds. Due to similarities in colour and texture between the species and to another timber group of commercial importance, the true mahoganies swietenia spp. Limonoids from khaya ivorensis six new limonoids, ivorenoids af 16, along with ten known analogues. Taylor department of chemistry, university of natal, durban. Material and methods characterization of the study site biomass, charcoal and briquette evaluations were carried out using samples obtained from 7yearold k. Sep 01, 2011 potential of a khaya ivorensis alstonia boonei extract combination as antimalarial prophylactic remedy. African mahoganys khaya ivorensis is a very large tree that attains a height of 4050 m and a dbh of up to 2 m. Besides, khaya ivorensis wood value values of up to 1500 dollars per cubic meter for veneer wood have been reported, stress the need for studies about correct quantification of merchantable and total tree volume, and accurate valuation.
Free fulltext pdf articles from hundreds of disciplines, all in one place volume equations for khaya ivorensis a. To examine its potential for clonal propagation, the effects of cutting length, leaf area, stockplant maturation, auxin, and smoke solution treatments were investigated. Limonoids from the fruits of khaya ivorensis article pdf available in molecules 193. Jan 31, 2012 the particularly valuable wood of khaya grandifoliola is, however, heavier and darker in colour than the wood of khaya anthotheca or khaya ivorensis. Compound 1 showed significant immunosuppressive activity. Tepongning rn1, lucantoni l, nasuti cc, dori gu, yerbanga sr, lupidi g, marini c, rossi g, esposito f, habluetzel a. The wood of makore tieghemella is similar, but more durable. Ivorenolide a, an unprecedented immunosuppressive macrolide. Khaya ivorensis and khaya senegalensis forest products laboratory. Aug 29, 2014 this page was last edited on 22 december 2019, at 05. Acajou dafrique page 2 of 3 tropix 7 19982012 cirad dissemination without express authorization is prohibited 11262014 drying rapid slight risk no slight risk. Meliaceae, a source of one of the most popular traditional african medicines, is mainly. The wood peels and slices well, producing an excellent quality of. Ivorenolide a 1, a novel 18membered macrolide featuring conjugated acetylenic bonds and five chiral centers, was isolated from khaya ivorensis.
The structure of an extractive from khaya ivorensis. 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. Files are available under licenses specified on their description page. Extensive lateral growth starts when the upper canopy of the forest has been reached.
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. Influence of the nutritional aspects on initial growth of. The wood is located in africa and can be shipped anywhere in the world. Prs s2 standard 24 dots fg frost green metallic, electric guitar, body.
Khaya ivorensis, also called african mahogany or lagos mahogany, is a tall forest tree with a buttressed trunk in the family meliaceae. In moist evergreen forest khaya ivorensis can be found flowering and fruiting throughout the year and bearing flowers and fruits at the same time. First report of parasaissetia nigra in khaya ivorensis. It is threatened by habitat loss khaya ivorensis is a species in the african mahogany family. The structure of 1 was fully determined by spectroscopic analysis, singlecrystal xray diffraction, and bioinspired total synthesis. Khaya ivorensis khaya senegalensis natural durability fungal decay termite damage abstract african mahogany khaya spp. The experiment was made up of five treatments which are treatment one benzyl amino purine at 0.
The timber of khaya is called african mahogany, with properties generally regarded as the closest to genuine mahogany. Khaya ivorensis is considered one of the most important timber species for plantations, combining fast growth and good timber quality. In nigeria khaya ivorensis trees are locally retained in cocoa plantations to serve as shade trees and ultimately for timber. The bark on the young branches is smooth and greyishbrown but smooth to sometimes mottled grey and brown, flaking on the older branches and stems. Two new limonoids, namely 14,15didehydroruageanin a 1 and 3omethyl butyrylseneganolide a 2, were isolated from the fruits of khaya ivorensis along. Medium bending and crushing strengths, although steam bending is not recommended. Meliaceous limonoids, the major metabolites of the meliaceae family, have attracted great interest in the natural products field due to their structural diversity and broad range of bioactivities 1,2. Khaya ivorensis in the germplasm resources information network grin, u.
The timber of khaya ivorensis contains khivorin, small amounts of swietenolide esters and other limonoids. In this study, the chemical constituents of khaya ivorensis stem bark and their termiticidal activity were investigated on triplochiton scleroxylon and vitex. 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. Often further classified as to port of shipment or country of origin. I have available large quantities of african mahogany khaya anthotheca, iroko chlorophora excelsa, and undianunofreijolouro preto enfandrophragna candilheiy. Khaya senegalensis, also known as african dry zone mahogany or mubaba in the shona language, is also used. 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. Pdf growth performance and biomass accumulation of a khaya.
The objective of this research is to report the occurrence of the nigra scale parasaissetia nigra nietner, 1861 hemiptera. A wide variety of khaya timber options are available to you. Ivorenolide b 1, an unprecedented 17membered macrolide featuring conjugated acetylenic bonds and four chiral centers, was isolated from khaya ivorensis. Interlocked grain is difficult to surface without tearing. Khaya ivorensis pdf the tree is widely exploited for its very valuable timber, which is traded internationally, and plantations have been established in several countries. Effects of khaya senegalensis leaves on performance, carcass.
Khaya ivorensis is greatly used as timber and little is known about its extracts especially the essential oil of the seed. African mahogany khaya ivorensis tegs timbers timber. Terminalia ivorensis wikimili, the free encyclopedia. We feature 59,800,000 royalty free photos, 360,000 stock footage clips, digital videos, vector clip art images, clipart pictures, background graphics, medical illustrations, and maps. Wood surface, african mahogany khaya ivorensis, full.
The wood of khaya species is similar to the genuine american mahogany swietenia mahagoni, swietenia macrophylla and to sapele entandrophragma cylindricum and utile entandrophragma utile. It is found in angola, cameroon, cote divoire, gabon, ghana, liberia, and nigeria where it grows primarily in lowland tropical rainforests. Munyama uganda, acajou dafrique ivory coast, dubini, dukuma fufu ghana, ogwango nigeria. Heartwood and sapwood of two african mahogany species, khaya ivorensis and khaya. Potential of a khaya ivorensis alstonia boonei extract combination as antimalarial prophylactic remedy. Khaya ivorensis wood is exported from west african countries in mixed consignments with other khaya spp. Pdf natural resistance of plantation grown african mahogany. Navigation menu personal tools log in request account. It most closely resembles the wood of khaya grandifoliola c. The grain of african mahogany is interlocked and can include quite figured flames. Both compound 1 and its synthetic enantiomer 2 showed potent and selective immunosuppressive activity. Pdf physicochemical characterization of exudates from.
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