Sangam: A Confluence of Knowledge Streams

Chemical and Structural Characterizations of Juvenile Wood, Mature Wood, and Compression Wood of Loblolly Pine (Pinus taeda)

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dc.contributor Hou-min Chang, Committee Co-Chair
dc.contributor Vincent L. Chiang, Committee Member
dc.contributor Barry Goldfarb, Committee Member
dc.contributor John F. Kadla, Committee Co-Chair
dc.creator Yeh, Ting-Feng
dc.date 2010-04-02T19:17:36Z
dc.date 2010-04-02T19:17:36Z
dc.date 2006-02-01
dc.date.accessioned 2023-02-28T17:07:53Z
dc.date.available 2023-02-28T17:07:53Z
dc.identifier etd-11022005-202923
dc.identifier http://www.lib.ncsu.edu/resolver/1840.16/5668
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/265602
dc.description In an effort to comprehensively study the wood property variation in juvenile wood, compression wood, and mature wood, and also to provide a rapid and cost-effective assessment tool to screening the wood chemical property variation, several loblolly pines (Pinus tadea), and transmittance near infrared spectroscopy were utilized in this study. The method development results show that a successful screening of wood chemical property variation, such as lignin and α-cellulose contents, could be adapted using stacked wood wafers microtomed from increment cores and combining with transmittance near infrared spectroscopy. The morphological, chemical, and metabolic analyses of juvenile wood and compression wood show that although compression wood and juvenile wood share some properties, they are actually distinct in their chemistry during development and in final wood chemistry and anatomy. The within tree variation analyses also show that juvenile wood from the top of the tree and that from the base of the tree are more different in morphological structures than in chemical structures. A similar pattern was found between juvenile wood and mature wood. The results obtained suggest that the within tree compression wood percentage and the fiber quality differences inherent in juvenile wood appear to have a greater influence on the final wood products.
dc.rights I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.
dc.subject juvenile wood
dc.subject mature wood
dc.subject loblolly pine (Pinus taeda)
dc.subject nitrobenzene oxidation
dc.subject a-cellulose content
dc.subject wood wafer
dc.subject increment cores
dc.subject microfibril angle
dc.subject fiber quality analysis (FQA)
dc.subject compression wood
dc.subject within tree variation
dc.subject cellulolytic enzyme lignin (CEL)
dc.subject cellulose crystallilte dimension
dc.subject transmittance near-infrared spectroscopy (NIR)
dc.subject X-Ray diffraction
dc.subject light microscopy
dc.subject lignin C9 formula
dc.subject Aspen (Populus trichocarpa)
dc.subject ozonation
dc.subject sugar analysis
dc.subject NMR spectroscopy
dc.subject screening
dc.subject lignin content
dc.title Chemical and Structural Characterizations of Juvenile Wood, Mature Wood, and Compression Wood of Loblolly Pine (Pinus taeda)


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