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    Author(s): Jinlan Cheng; Shao-Yuan Leu; J.Y. ZhuThomas W. Jeffries
    Date: 2014
    Source: Bioresource Technology 164, 2014; pp. 331–337.
    Publication Series: Scientific Journal (JRNL)
    Station: Forest Products Laboratory
    PDF: View PDF  (1.23 MB)

    Description

    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.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Cheng, Jinlan; Leu, Shao-Yuan; Zhu, J.Y.; Jeffries, Thomas W. 2014. Ethanol production from non-detoxified whole slurry of sulfite-pretreated empty fruit bunches at a low cellulase loading. Bioresource Technology 164, 2014; pp. 331–337.

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    Keywords

    Empty fruit bunches (EFB), Pretreatment, High solids Enzymatic hydrolysis/saccharification, Fermentation, High titer ethanol

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