Elementology, fastness and fungicidal performance of Khaya ivorensis stem bark extracts

  • Gabriel Adetoye AdedejiEmail author
  • Adedapo Ayo Aiyeloja
  • Adekunle Tajudeen Oladele
  • Olukayode Yekin Ogunsanwo
Original Article


Khaya ivorensis (KI) represents one of the mostly used medicinal/pesticidal plants in Nigeria. While investigations into its chemical compositions and biological activity have been severally reported, little is known about the elementology, fastness and fungicidal performance of KI parts on wood. This study determined the elementology of some wood-preservative chemical elements [aluminium (Al), arsenic (As), boron (B), cadmium (Cd), chloride (Cl), chromium (Cr), copper (Cu), mercury (Hg), iodine (I), lead (Pb), silicon (Si) and zinc (Zn)] from KI stem bark (KISB). Extracts colour fastness and fungicidal performance on woods were also examined. Cl was severally folded highest (2137.50 ± 8.29 mg/kg) followed by Zn (50.13 ± 0.04 mg/kg), Si (32.50 ± 2.50 mg/kg), and the lowest were Cd and Hg (0.00 ± 0.00 mg/kg). The extracts from KISB showed good hand-rubbing reddish-brown colour fastness on two non-durable white woods. The two fungi Ganoderma lucidum (white rot) and Sclerotium rolfsii (brown rot) caused similar decay trend on both woods (Triplochiton scleroxylon and Vitex doniana) with lowest concentration (5%) showing best fungicidal performance of 11.9% wood weight loss (WWL) compared to control (43.1% WWL). The fungicidal best performance of KISB at 5% concentration considered the treated wood samples as “resistant” according to the description of ASTM D (2017), implying KISB is effective. It may be inferred that the fungicidal performance of the KISB could be attributed at least in part to its contents of chloride, zinc, silicon and chromium.


KISB extracts Protective chemical elements Fixative potentiality Fungicide efficacy Wood rots 



This article was part of project funded by the International Tropical Timber Organization (ITTO) under Grant No. 009/12S awarded to the first author. The authors, therefore, thank ITTO for financial support. The authors also thank Dr. Eguakun F. S. of the Department of Forestry and Wildlife Management, University of Port Harcourt, Nigeria, for statistical advice.

Authors’ contributions

GAA designed the experiment, performed the experiment and drafted the manuscript. OYO supervised the work. AAA and ATO were responsible for elementology study and proofread the drafted manuscript. AAA provided financial support. All authors fully contributed and approved the final manuscript.


  1. Abdegaleil SAM, Hashinaga F, Nakatani M (2005) Antifungal activity of limonoids from Khaya ivorensis. Pest Manag Sci 61(2):186–190. CrossRefGoogle Scholar
  2. Adedeji GA, Ogunsanwo OY, Eguakun FS, Elufioye TO (2018a) Chemical composition and termiticidal activity of Khaya ivorensis stem bark extract on woods. Maderas Cencia y Tecnologia 20(3):315–324. Google Scholar
  3. Adedeji GA, Oladele AT, Aiyeloja AA, Elufioye TO, Elenwo EO (2018b) Differential termiticidal effects of Spondiathus preussii Engl. var preussii extracts on Vitex doniana wood. J Indian Acad Wood Sci 15(1):1–9. CrossRefGoogle Scholar
  4. Adekunle AA, Duru C, Odufuwa OM (2003) Antifungal activity and phytochemical screening of the crude extracts of Khaya ivorensis Juss (Meliaceae) and Tetracera potatoria L. (Dilleniaceae). S Afr J Bot 69(4):568–571CrossRefGoogle Scholar
  5. Adesida GA, Adesogan EK, Okorie DA, Taylor DAH, Styles BT (1971) The limonoids chemistry of genus Khaya (Meliaceae). Phytochemistry 10:1845–1853CrossRefGoogle Scholar
  6. Adesogan EK, Taylor DAH (1970) Limonoid extractives from Khaya ivorensis. J Chem Soc C 12:1710–1714CrossRefGoogle Scholar
  7. Agbedahunsi JM, Fakoya FA, Adesanya SA (2004) Studies on the anti-inflammatory and toxic effects of the stem bark of Khaya ivorensis (Meliaceae) on rats. Phytomedicine 11(6):504–508. CrossRefGoogle Scholar
  8. Akinyeye RO, Olatunya AM (2014) Phytochemical screening and mineral composition of the bark of some medicinal trees in Ondo State, Nigeria. Med Aromat Plant Res J 2(3):44–49Google Scholar
  9. American Society for Testing and Materials (ASTM) ASTM D-2017 (1994) Standard method of accelerated laboratory test of natural decay resistance for woods. ASTM, PhiladelphiaGoogle Scholar
  10. Arana ML (1967) Fertilizacion con cloruro de potasio y con sulfato de potasio en plantaciones de café. I. Verification de la absorcion de ions K, Cl y S por medio de analisis foliar. Cenicafé Bogota 18(2):47–54Google Scholar
  11. Athomo ABB, Aris SPE, Tchiama RS, Medina FJS, Cabaret T, Pizzi A, Charrier B (2018) Chemical composition of African mahogany (K. ivorensis A. Chev) extractive and tannin structures of the bark by MALDI-TOF. Ind Crops Prod 113:167–178CrossRefGoogle Scholar
  12. Bayat H, Aminifard MH (2018) Effects of different preservative solutions on vase life of Narcissus tazetta cut flowers. J Ornam Plants 8(1):13–21Google Scholar
  13. Bhuiyan MAR, Ali A, Islam A, Hannan MA, Kabir SMF, Islam MN (2018) Coloration of polyester fiber with natural dye henna (Lawsonia inermis L.) without using mordant: a new approach towards a cleaner production. Fash Text 5(2):1–11. Google Scholar
  14. Chaudhary MT, Wainwright SJ, Merett MJ (1996) Comparative NaCl tolerance of Lucerne plants regenerated from salt-selected suspension cultures. Plant Sci 114:221–232CrossRefGoogle Scholar
  15. Ciritcioglu HH, Ilce AC, Burdurlu E (2017) The colour preferences of consumers on furniture surfaces. Online J Sci Technol 7(3):98–108Google Scholar
  16. Coder KD (2012) Autumn leaf colour development. Outreach monograph WSFNR12-26b. Warnell School of Forestry and Natural Resources, The University of Georgia, Athens, p 51Google Scholar
  17. Da Silveira AG, Santini EJ, Kulczynski SM, Trevisan R, Wastowski AD, Gatto DA (2017) Tannic extract potential as natural wood preservative of Acacia mearnsii. An Acad Bras Ciênc 89(4):3031–3038CrossRefGoogle Scholar
  18. Danquah JA, Appiah M, Ari P (2011) Eco-geographical variation in leaf morphology of African mahogany (Khaya anthotheca and Khaya ivorensis) provenances in Ghana. Eur J Sci Res 51(1):18–28Google Scholar
  19. Demirbas A (2010) Biorefineries for biomass upgrading facilities (green energy and technology). Springer, LondonGoogle Scholar
  20. Eaton FM (1942) Toxicity and accumulation of chloride and sulfate salts in plants. J Agric Res 64(7):357–399Google Scholar
  21. Eguakun FS, Adedeji GA, Elufioye TO, Egubogo AC (2017) Geographical variations in elemental compositions of two pesticidal plants from three agro-ecosystems in Nigeria and their wood protection potentiality. J Elem 22(4):1209–1222. Google Scholar
  22. Esteves B, Marques AV, Domingos I, Pereira H (2008) Heat-induced colour changes of pine (Pinus pinaster) and eucalypt (Eucalyptus globulus) wood. Wood Sci Technol 42(5):369–384CrossRefGoogle Scholar
  23. Ewete FK, Bamigbola KA (1998) Effects of three natural products extracts as toxicants against Callosobruchus maculatus F. (Coleoptera: Bruchidae) infesting Bambara groundnut. J Trop For Resour 14:1–8Google Scholar
  24. Fasciotti M, Alberici RM, Cabral EC, Cunha VS, Silva PRM, Daroda RJ, Eberlin MN (2015) Wood chemotaxonomy via ESI-MS profiles of phytochemical markers: the challenging case of African versus Brazilian mahogany woods. Anal Methods 7:8576–8583CrossRefGoogle Scholar
  25. Franca TSFA, Franca FJN, Arango RA, Woodward BM, Arantes MDC (2016) Natural resistance of plantation grown African mahogany (Khaya ivorensis and Khaya senegalensis) from Brazil to wood-rot fungi and subterranean termites. Int Biodeterior Biodegrad 107:88–91CrossRefGoogle Scholar
  26. Heryati Y, Belawan D, Abdu A, Mahat MN, Abdul Hamid H, Majid N, Muhamad N, Hassan A (2011) Growth performance and biomass accumulation of a Khaya ivorensis plantation in three soil series of ultisols. Am J Agric Biol Sci 6:33–44CrossRefGoogle Scholar
  27. Kayode J, Jose RA, Ige OE (2009) Conservation and biodiversity erosion in Ondo State, Nigeria: assessing botanicals used in the cure of sexually transmitted diseases in Owo Region. Ethnobot Leafl 13:734–738Google Scholar
  28. Krajewski A, Narojek T, Witomski P (2005) The detection of old house larvae in wood by means of X-ray computed tomography. Ann Wars Agric Univ 55:363–368Google Scholar
  29. Lawal IO, Igboanugo ABI, Osikarbor B, Duyilemi OP, Adesoga AA, Borokini TI, Adeyanju BA (2010) Evaluation of plant-based non timber forest products (NTFPs) as potential bioactive drugs in South-western Nigeria. J Clin Med Res 3(4):061–066Google Scholar
  30. Liang Y, Nikolic M, Belanger R, Gong H, Song A (2015) Silicon and insect pest resistance. Silicon in agriculture. Springer, Dordrecht, pp 197–207. CrossRefGoogle Scholar
  31. Loko YL, Dansi A, Tamo M, Bokonon-Ganta AH, Assogba P, Dansi M, Vodouhe R, Akoegninou A, Sanni A (2013) Storage insects on yam chips and their traditional management in Northern Benin. Sci World J. Google Scholar
  32. Nordahlia AS, Hamdan H, Anwa UMK (2013) Wood property of selected plantation species: Khaya ivorensis (African mahogany), Azadirachta excelsa (Sentang), Endosperm malaccense (Sesendok) and Acacia mangium. Timber Technology Bulletin No 15. Ministry of Natural Resources and Environment, Malaysia, p 8Google Scholar
  33. Novozamsky I, van Eck R, Houba VJG (1984) A rapid determination of silicon in plant material. Commun Soil Sci Plant Anal 15:205–211CrossRefGoogle Scholar
  34. Olusola JA, Oyeleke OO (2015) Survey and documentation of medicinal plants in Wildlife Park of Federal University of Technology, Akure, Nigeria. Int J Life Sci Res 3(1):238–246Google Scholar
  35. Pizzi A (1981) The chemistry and kinetic behavior of Cu–Cr–As/B wood preservatives. I. Fixation of chromium on wood. J Polym Sci Polym Chem Ed 19(12):3093–3121. CrossRefGoogle Scholar
  36. Rhatigan RG, Morrell JJ (2003) Use of through-boring to improve CCA or ACZA treatment of refractory Douglas-fir and grand fir. For Prod J 53(6):33–35Google Scholar
  37. Silva EB, Nogueira FD, Guimaraes PTG, Malta MR (1998) Chloride analysis methods and contents in leaves, grains, and husks of coffee. Commun Soil Sci Plant Anal 29(15–16):2319–2331. CrossRefGoogle Scholar
  38. Smart R, Wall W (2006) Copper borate for the protection of engineered wood composites. IRG/WP/06–40334. International Research Group on Wood Preservation, IRG Secretariat, StockholmGoogle Scholar
  39. Taiwo EA, Ogunbodede RA (1995) Production of tannin adhesives from bark of Nigerian trees. Wood Sci Technol 29:103–108. CrossRefGoogle Scholar
  40. Tavakkoli E, Rengasamy P, McDonald GK (2010) High concentration of Na+ and Cl ions in soil solution have simultaneous detrimental effects on growth of faba bean under salinity stress. J Exp Bot 61(15):4449–4459. CrossRefGoogle Scholar
  41. Taylor DAH (1977) The structure of an extractive from Khaya ivorensis. Phytochemistry 16(11):1847–1849CrossRefGoogle Scholar
  42. Tekpetey SL, Essien C, Appiah-Kubi E, Opuni-Frimpong E, Korang J (2016) Evaluation of the chemical composition and natural durability of natural and plantation grown African Mahogany Khaya ivorensis A. Chev. in Ghana. Indian Acad Wood Sci 13(2):152–155. CrossRefGoogle Scholar
  43. Tomak ED, Gonultas O (2018) The wood preservative potentials of valonia, chestnut, tara and sulphited oak tannins. J Wood Chem Technol. Google Scholar
  44. Wang Y, Liu Q, Xue J, Zhou Y, Yu H, Yang S, Zhang B, Zuo J, Li Y, Yue J (2014) Ivorenolide B, an immunosuppressive 17-membered macrolide from Khaya ivorensis: structural determination and total synthesis. Org Lett 16(7):2062–2065. CrossRefGoogle Scholar
  45. Wu WB, Zhan H, Liu HC, Dong SH, Wu Y, Ding J, Yue JM (2014) Ivorenoids A-F: limonoids from Khaya ivorensis. Tetrahedron 70:3570–3575CrossRefGoogle Scholar
  46. Zhang B, Yang SP, Yin S, Zhang CR, Wu Y, Yue JM (2009) Limonoids from Khaya ivorensis. Phytochemistry 70:1305–1308. CrossRefGoogle Scholar

Copyright information

© Indian Academy of Wood Science 2019

Authors and Affiliations

  1. 1.Department of Forestry and Wildlife ManagementUniversity of Port HarcourtPort HarcourtNigeria
  2. 2.Department of Forest Production and ProductsUniversity of IbadanIbadanNigeria

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