NDLI: The effect of varying organosolv pretreatment chemicals on the physicochemical properties and cellulolytic hydrolysis of mountain pine beetle-killed lodgepole pine.

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The effect of varying organosolv pretreatment chemicals on the physicochemical properties and cellulolytic hydrolysis of mountain pine beetle-killed lodgepole pine.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Del Rio, Luis F. Chandra, Richard P. Saddler, Jack N.
Description	Country affiliation: Canada Author Affiliation: Del Rio LF ( Forest Products Biotechnology, Faculty of Forestry, University of British Columbia, 2424 Main Mall, Vancouver, BC V6T1Z4, Canada.)
Abstract	Mountain pine beetle-killed lodgepole pine (Pinus contorta) chips were pretreated using the organosolv process, and their ease of subsequent enzymatic hydrolysis was assessed. The effect of varying pretreatment chemicals and solvents on the substrate's physicochemical characteristics was also investigated. The chemicals employed were MgCl2, H2SO4, SO2, and NaOH, and the solvents were ethanol and butanol. It was apparent that the different pretreatments resulted in variations in both the chemical composition of the solid and liquid fractions as well in the extent of cellulolytic hydrolysis (ranging from 21% to 82% hydrolysis after 12 h). Pretreatment under acidic conditions resulted in substrates that were readily hydrolyzed despite the apparent contradiction that pretreatment under alkaline conditions resulted in increased delignification (approximately 7% and 10% residual lignin for alkaline conditions versus 17% to 19% for acidic conditions). Acidic pretreatments also resulted in lower cellulose degree of polymerization, shorter fiber lengths, and increased substrate porosity. The substrates generated when butanol/water mixtures were used as the pretreatment solvent were also hydrolyzed more readily than those generated with ethanol/water. This was likely due to the limited miscibility of the solvents resulting in an increased concentration of pretreatment chemicals in the aqueous layer and thus a higher pretreatment severity.
File Format	HTM / HTML
ISSN	02732289
Issue Number	1-8
Volume Number	161
e-ISSN	15590291
Journal	Applied Biochemistry and Biotechnology
Language	English
Publisher	Springer
Publisher Date	2010-05-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Biochemistry Discipline Biotechnology Beetles Pathogenicity Cellulose Chemistry Pinus Solvents Animals Biotechnology Methods Conservation Of Natural Resources Hydrolysis Magnesium Chloride Parasitology Sodium Hydroxide Sulfites Sulfuric Acids Journal Article
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Biology Environmental Engineering Biochemistry Bioengineering Applied Microbiology and Biotechnology Biotechnology

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The Effect of Varying Organosolv Pretreatment Chemicals on the Physicochemical Properties and Cellulolytic Hydrolysis of Mountain Pine Beetle-Killed Lodgepole Pine

Data from: Mountain pine beetle host-range expansion threatens the boreal forest (Dataset)

Evaluation of Compatibility between Beetle-Killed Lodgepole Pine (Pinus Contorta var. Latifolia) Wood with Portland Cement

Fall Rate of Lodgepole Pine Killed by the Mountain Pine Beetle in Central Oregon

Diversity and decay ability of basidiomycetes isolated from lodgepole pines killed by the mountain pine beetle.

Organosolv pretreatment with various catalysts for enhancing enzymatic hydrolysis of pitch pine (Pinus rigida).

Five-Year Operational Trial of Verbenone to Deter Mountain Pine Beetle (Dendroctonus ponderosae; Coleoptera: Scolytidae) Attack of Lodgepole Pine (Pinus contorta)

Larger Resin Ducts Are Linked to the Survival of Lodgepole Pine Trees During Mountain Pine Beetle Outbreak

Fire Injury Reduces Inducible Defenses of Lodgepole Pine against Mountain Pine Beetle

The effect of varying organosolv pretreatment chemicals on the physicochemical properties and cellulolytic hydrolysis of mountain pine beetle-killed lodgepole pine.

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