TY - JOUR AU - Niamké, F.B. AU - Amusant, N. AU - Kadio, A.A. AU - Thevenon, M.-F. AU - Nourissier, S. AU - Adima, A.A. AU - Jay-Allemand, C. AU - Chaix, G. PY - 2014// TI - Rapid prediction of phenolic compounds as chemical markers for the natural durability of teak (Tectona grandis Linn f.) heartwood by near infrared spectroscopy T2 - J. Near Infrared Spectrosc. JO - Journal of Near Infrared Spectroscopy SP - 35 EP - 43 VL - 22 IS - 1 PB - N I R Publications KW - Heartwood KW - Hplc KW - Natural durability KW - NIR spectroscopy KW - Phenolic KW - Prediction KW - Quinone KW - Tectona grandis N2 - Near infrared (NIR) spectroscopy provides rapid and non-destructive analysis of wood properties and composition. In this study, we aimed to use NIR measurement for the prediction of teak phenolic compounds, which are chemical markers for natural durability of wood. Twenty-seven teak trees from two geographical zones (Malaysia and Ivory Coast) were used. On ground heartwood samples, the content of total phenolics and individual quinones (tectoquinone, 2-(hydroxymethyl)anthraquinone, 2-anthraquinone carboxylic acid, 1,4-naphthoquinoneand 4c,5c-dihydroxy-epiisocatalponol) were determined using high performance liquid chromatography (HPLC). Partial least squares (PLS) regression with NIR spectra on the same samples and phenolic data was used to build NIR models for phenolic contents. The PLS models for the total predicted phenolics and three quinone contents (tectoquinone, 2-(hydroxymethyl) anthraquinone, and 4¢,5¢-dihydroxy-epiisocatalponol) showed a good ratio of performance to deviation (RPD ≥ 2.5), strong coefficients of determination (r2 ≥ 0.8) and the prediction errors were consistent with the reference method. These results demonstrate that NIR spectroscopy can be reliable for the evaluation of total phenolics and individual quinones in teak heartwood wood meal. NIR spectroscopy is a promising technique for rapidly providing information on the quinone contents in teak wood and indirectly for knowing its natural durability. This finding leads to a precise, non-destructive tool for teak wood quality evaluation. © IM Publications LLP 2014. SN - 17516552 (Issn) UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84899667112&partnerID=40&md5=e2be9eef75de6baf4ca8f58d0752a09e N1 - Export Date: 20 May 2014; Source: Scopus; Language of Original Document: English; Correspondence Address: Niamké, F.B.; LAPISEN, Groupe de Recherche en Chimie des Eaux et des Substances Naturelles, Institut National Polytechnique Houphouët Boigny, BP 1313, Yamoussoukro, Cote d'Ivoire ID - Niamke_etal2014 ER -