1. Ethanol production from non-detoxified whole slurry of sulfite-pretreated empty fruit bunches at a low cellulase loading.
- Author
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Cheng J, Leu SY, Zhu JY, and Jeffries TW
- Subjects
- Arecaceae chemistry, Fermentation drug effects, Furaldehyde metabolism, Polysaccharides metabolism, Substrate Specificity drug effects, Time Factors, Xylans isolation & purification, Xylose biosynthesis, Biotechnology methods, Cellulase metabolism, Ethanol metabolism, Fruit chemistry, Sulfites pharmacology
- Abstract
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.)
- Published
- 2014
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