期刊
RENEWABLE ENERGY
卷 107, 期 -, 页码 113-123出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2017.01.039
关键词
Co-fermentation; Bioethanol; Alkali-pre-treatment; Xylose fermentation; Oil palm empty fruit bunches; Co-hydrolysis
资金
- Universiti Sains Malaysia through Research University (RU) Grant [1001-PTEKIND/821067]
Poor or non-utilisation of the xylose fractions of lignocellulosic biomass is a serious impediment to the achievement of energy security through lignocellulosic ethanol. In this work, the potential of sustainable ethanol production from oil palm empty fruit bunches (OPEFB) by co-fermentation of its glucose and xylose components was assessed. Simultaneous co-saccharification and co-fermentation (SScF) was compared with three other fermentation techniques to evaluate bioconversion of mild-alkaline-treated OPEFB for efficient bioethanol production. Hydrolysis was done by the synergistic actions of commercial cellulase (50 FPU/gds) supplemented with on-site crude hemicellulasd at unit ratio of 1 FPU: 5 U. After pre-treatment, 79.0% and 79.3% respectively of total glucan and xylan were recovered while 91.9% and 90.6% of the respective polymers were hydrolyzed to fermentable sugars. At 3.4% (w/v) substrate loading, 89.5% theoretical ethanol yield, equivalent of 0.33 g/g raw OPEFB (418.9 L/tonne) was achieved by using SScF. This was higher than 84.9% (031 g/g = 397.6 L/tonne raw OPEFB) achieved by separate cohydrolysis and co-fermentation (SHcF) which is the closest among other fermentation techniques compared. By our knowledge, the yield achieved by the co-fermentation techniques used in this study has not been reported in any previous research which produced ethanol from OPEFB. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据