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Discrimination of native wood charcoal by infrared spectroscopy

Davrieux F., Rousset P., Pastore T.C.M., Alves de Macedo L., Quirino W.F.. 2010. Química Nova, 33 (5) : p. 1093-1097.

Brazil is one of the largest producers and consumers of charcoal in the world. About 50% of its charcoal comes from native forests, with a large part coming from unsustainable operations. The anatomic identification of charcoal is subjective; an instrumental technique would facilitate the monitoring of forests. This study aimed to verify the feasibility of using medium and near infrared reflectance spectroscopy to discriminate native (ipê) from plantation charcoals (eucalyptus). Principal Components Analysis, followed by Discriminant Factorial Analysis formed two different groups indicated by Mahalanobis distances of 40.6 and 80.3 for near and mid infrared, respectively. Validation of the model showed 100% efficacy. (Résumé d'auteur)

Mots-clés : anatomie végétale; identification; contrôle de qualité; spectroscopie infrarouge; eucalyptus grandis; plantations; forêt; provenance; charbon de bois; amazonie; brésil; tabebuia serratifolia

Thématique : Technologie des produits forestiers; Anatomie et morphologie des plantes; Méthodes de relevé; Sources d'énergie renouvelable; Commerce, commercialisation et distribution

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