Assessment of total phenols and extractives of mahogany wood by near infrared spectroscopy (NIRS)

Ribeiro da Silva Allan, Pastore Monteiro Tereza Cristina, Batista Braga Jez Willian, Davrieux Fabrice, Arakaki Okino Esmeralda Yoshico, Rauber Coradin Vera Teresinha, Alves Camargos José Arlete, Do Prado Alexandre Gustavo Soares. 2013. Assessment of total phenols and extractives of mahogany wood by near infrared spectroscopy (NIRS). Holzforschung, 67 (1) : 1-8.

Quartile : Q1, Sujet : MATERIALS SCIENCE, PAPER & WOOD / Quartile : Q1, Sujet : FORESTRY

Résumé : The resistance to decomposition of mahogany wood (Sweitenia macrophylla King) ranges from high to moderate level. Wood extractives, mainly due to the presence of phenol compounds are related to the natural durability of wood. The technique of near infrared spectroscopy (NIRS) coupled with multivariate analysis has been applied to assess the extractives and phenols of 41 samples of mahogany in powder form. The hot water-soluble extractives were quantitatively determined, and total phenol content was measured with the Folin-Denis colourimetric reagent. Models were developed with the NIRS data for each of the two variables. The results indicated that NIRS can be a useful tool to a rapid evaluation of the extractive contents and total phenolic compounds of mahogany wood. The method was able to predict the interesting properties with errors lower than 10% (w/w) and had the capability of detecting samples that have a minimum concentration of 2.4% (w/w) of extractives and total phenolic compounds, respectively.

Mots-clés Agrovoc : bois, aptitude à la conservation, technique de prévision, modèle de simulation, composé phénolique, composition chimique, spectroscopie infrarouge

Mots-clés géographiques Agrovoc : Mato Grosso

Mots-clés complémentaires : Sweitenia macrophylla

Classification Agris : K50 - Technologie des produits forestiers
F60 - Physiologie et biochimie végétale
J12 - Manutention, transport, stockage et conservation des produits forestiers
U30 - Méthodes de recherche

Champ stratégique Cirad : Hors axes (2005-2013)

Auteurs et affiliations

• Ribeiro da Silva Allan, UNB [Universidade de Brasilia] (BRA)
• Pastore Monteiro Tereza Cristina, UNB [Universidade de Brasilia] (BRA)
• Batista Braga Jez Willian, UNB [Universidade de Brasilia] (BRA)
• Davrieux Fabrice, CIRAD-PERSYST-UMR Qualisud (FRA)
• Arakaki Okino Esmeralda Yoshico, UNB [Universidade de Brasilia] (BRA)
• Rauber Coradin Vera Teresinha, UNB [Universidade de Brasilia] (BRA)
• Alves Camargos José Arlete, UNB [Universidade de Brasilia] (BRA)
• Do Prado Alexandre Gustavo Soares, UNB [Universidade de Brasilia] (BRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/567604/)

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