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Ting-Feng Yeh, Jennifer L. Braun, Barry Goldfarb, Hou-min Chang, John F. Kadla

Morphological and chemical variations between juvenile wood, mature wood, and compression wood of loblolly pine (Pinus taeda L.)

Keywords: cellulolytic enzyme lignin (CEL), compression wood, crystallilte dimension, fiber quality analysis (FQA), juvenile wood, loblolly pine (Pinus taeda), mature wood, Microfibril angle, nitrobenzene oxidation, NMR spectroscopy, ozonation, sugar analysis, X-ray diffraction

To better understand the within-tree variations between juvenile wood, mature wood, and compression wood, wood from a 35-year-old mature bent loblolly pine was separated into seven groups by different positions in the tree. Morphological and chemical structure analyses, including fiber quality, X-ray diffraction, sugar and lignin content analysis, as well as nitrobenzene oxidation, ozonation, and advanced NMR spectroscopy, were performed. Fiber properties were significantly different for tree-top juvenile normal wood and tree-bottom juvenile normal wood, juvenile normal and mature normal wood, juvenile compression and mature compression wood. However, differences in the chemical structure and composition were less significant within the specific tissues indicated above.

Holzforschung, Walter de Gruyter

Print ISSN: 0018-3830
Volume: 60, 01/2006
Pages: 1 - 8

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