Journal
FUEL
Volume 205, Issue -, Pages 184-191Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2017.05.073
Keywords
Pretreatment; Energy crops; Micro-structural morphology; Enzymatic hydrolysis; Fermentable sugar
Categories
Funding
- National Natural Science Foundation of China - China [31500491]
- Commonweal Project of Science and Technology Agency of Zhejiang Province - China [2017C32068]
- Natural Science Foundation of Zhejiang Province - China [LQ17E060002, LQ17C130001]
Ask authors/readers for more resources
This work presents the application of ammonia fiber expansion (AFEX) pretreatment both with (H-AFEX) and without hydrogen peroxide presoaking of energy crops moso bamboo, giant reed, and Miscanthus. The influences of AFEX and H-AFEX pretreatments on chemical composition and enzymatic hydrolysis were assessed. The results address the solid recovery, delignification, hydrolysis sugar yields, and micro-structural morphology of varying H-AFEX pretreatment conditions of energy crops. A strong negative correlation between solid recovery and H2O2 loading was found for all pretreated samples with H2O2 loading <2.0. In comparison with AFEX process, the addition of hydrogen peroxide in H-AFEX pretreatment could result in increases in glucose yields at the expense of xylose. The maximum sugar yields of moso bamboo, giant reed, and Miscanthus were 269.0, 424.6, and 485.0 g per kg dry biomass respectively, which were obtained under their optimal pretreatment conditions following enzymatic hydrolysis. The micrograph of H-AFEX-treated giant reed demonstrated that the modified porous structure resulted in increased enzyme accessible surface area, and facilitated the subsequent enzymatic hydrolysis. (C) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available