期刊
BIOENERGY RESEARCH
卷 4, 期 3, 页码 201-210出版社
SPRINGER
DOI: 10.1007/s12155-011-9113-y
关键词
Biomass recalcitrance; Pretreatment; Optimization; Sugar recovery; Enzymatic hydrolysis/saccharification
资金
- University of Florida
- US Forest Service Program of Woody Biomass, Bioenergy, and Bioproducts
- Chinese Scholarship Council
This paper discusses a property associated with plant biomass recalcitrance to enzyme and microbial deconstructions in sugar production from cellulose and hemicelluloses. The hemicelluloses are more readily hydrolyzed to sugars than is cellulose. As a result, optimization to maximize individual glucose and hemicellulose sugar recovery is not possible. This property is an inherent feature of plant biomass and is named polydispersity of plant biomass recalcitrance (PPBR) in this study. A set of pretreatment experiments using eucalyptus and sulfite pretreatment to overcome recalcitrance of lignocelluloses was conducted. The results were used to predict the conditions for individually maximizing enzymatic glucose and xylose yields. The predicted maximal yields were used to quantitatively illustrate the PPBR concept. The effect of PPBR on pretreatment optimization and strategies for maximal sugar recovery using two-stage pretreatment are discussed.
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