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Title: Mountain pine beetle-killed lodgepole pine for the production of submicron lignocellulose fibrils

Source: Forest Science. 60(3): 502-511.

Author(s)Hoeger, Ingrid; Gleisner, Rolland; Negron, Jose; Rojas, Orlando J.; Zhu, J. Y.

Publication Year: 2014  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4709-2B

Abstract: The elevated levels of tree mortality attributed to mountain pine beetle (MPB) (Dendroctonus ponderosae Hopkins) in western North American forests create forest management challenges. This investigation introduces the production of submicron or nanometer lignocellulose fibrils for value-added materials from the widely available resource represented by dead pines after an outbreak. Lodgepole pine (Pinus contorta Dougl. ex Loud.), trees from two different times since infestation and a noninfested live tree as a control were used for mechanical fibrillation. Fiber deconstruction down to the micro-/nanoscale from infested wood was performed using mechanical fibrillation, without any chemical (pre)treatment. The effects of fibrillation were monitored as a function of processing time, and the respective products were characterized. The changes in fibril morphology, cellulose crystallinity, water retention value, and cellulase adsorption capacity were determined. Interestingly, no significant differences were found between fibrillated samples from the live and the MPB-killed trees. It can be concluded that MPB-killed lodgepole pine is a suitable feedstock for the production of lignocellulose micro-/nanofibrils.

Keywords: cell wall deconstruction, cellulose nanofibrils, lignocellulose fibrils, mechanical fibrillation, mountain pine bark beetle

Publication Review Process: Formally Refereed

File size: 2,038 kb(s)

Date posted: 06/27/2014

This publication is also viewable on Treesearch:  view
RITS Product ID: 67900
Current FPL Scientist associated with this product
Zhu, JunYong
Research General Engineer
  

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