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- Title
Effect of organosolv ethanol pretreatment variables on physical characteristics of hybrid poplar substrates.
- Authors
Dan Xie; Kyu-Young Kang; Seung-Lak Yoon; Jack Saddler
- Abstract
Abstract  Hybrid poplar (Populus nigra � P. maximowiczii) chips were pretreated using an organosolv ethanol process. The effect of pretreatment conditions (temperature, time, catalyst, and ethanol concentration) on the substrate characteristics, including fiber size, crystallinity, and degree of polymerization of cellulose, was investigated using an experimental matrix designed with response surface methodology. The conditions ranged 155â205�C, 26â94 min, 0.83â1.67% catalyst (H2SO4) on oven-dry wood chip (w/w), and 25â75% ethanol concentration (v/v). The results indicated that the substrate characteristics are controllable and predictable. Desirable substrates can be prepared by fine-tuning the processing parameters. The regression models developed, allowed the quantitative prediction of the substrate characteristics from the pretreatment conditions used.
- Subjects
ALCOHOL; POLYMERIZATION; RESPONSE surfaces (Statistics); REGRESSION analysis
- Publication
Applied Biochemistry & Biotechnology, 2007, Vol 137, Issue 1-12, p367
- ISSN
0273-2289
- Publication type
Article