The effect of blending spruce and poplar on acid-catalyzed steam pretreatment and enzymatic hydrolysis

被引：0
作者：
Frankó B. [1 ]
Jovanovic H. [1 ]
Galbe M. [1 ]
Wallberg O. [1 ]
机构：
[1] Department of Chemical Engineering, Lund University, P.O. Box 124, Lund
来源：
Bioresource Technology Reports | 2019年 / 7卷
关键词：
Enzymatic hydrolysis; Hardwood; Mixed feedstocks; Softwood; Steam pretreatment;
D O I：
10.1016/j.biteb.2019.100241
中图分类号：
学科分类号：
摘要：
The aim of this work was to explore the possibility of mixed feedstocks utilization using acid-catalyzed steam pretreatment in the context of forest biomass. Three steam pretreatment conditions were applied to characterize the interactions between spruce (softwood) and poplar (hardwood) that were concurrently processed by SO2-catalyzed steam pretreatment and enzymatic hydrolysis. The effects of blending feedstocks were evaluated in terms of composition and enzymatic digestibility. The combined sugar yields after steam pretreatment and enzymatic hydrolysis ranged from 58% to 71%. No synergistic or antagonistic interactions were observed in the concurrent use of spruce and poplar—our linear interpolation model accurately predicted the overall sugar recovery after steam pretreatment and enzymatic hydrolysis for a 50:50 blend to within 3%, based on the results of the individual feedstocks. © 2019 Elsevier Ltd
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