Journal
BIORESOURCE TECHNOLOGY
Volume 164, Issue -, Pages 331-337Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.04.102
Keywords
Empty fruit bunches (EFB); Pretreatment; High solids Enzymatic hydrolysis/saccharification; Fermentation; High titer ethanol
Funding
- USDA National Institute of Food and Agriculture (NIFA) through Agriculture and Food Research Initiative Competitive Grant program [2011-68005-30416]
- Jiangsu Government Scholarship for Overseas Studies
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Sulfite pretreatment to overcome the recalcitrance of lignocelluloses (SPORL) was applied to an empty fruit bunches (EFB) for ethanol production. SPORL facilitated delignification through lignin sulfonation and dissolution of xylan to result in a highly digestible substrate. The pretreated whole slurry was enzymatically saccharified at a solids loading of 18% using a relatively low cellulase loading of 15 FPU/g glucan and simultaneously fermented without detoxification using Saccharomyces cerevisiae of YRH400. An ethanol yield of 217 L/tonne EFB was achieved at titer of 32 g/L. Compared with literature studies, SPORL produced high ethanol yield and titer with much lower cellulase loading without detoxification. Published by Elsevier Ltd.
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