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Optimization of ethanol production from hot-water extracts of sugar maple chips

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  • Xu, Jian
  • Liu, Shijie

Abstract

Hot-water extracts from sugar maple chips prior to papermaking was employed in this study to produce ethanol by Pichia stipitis 58784. The effects of several factors, seed culture age, fermentation time, inoculum quantity, agitation rate, percent extract, concentration of inorganic nitrogen source (NH4)2SO4 and pH value, on ethanol production were investigated by orthogonal experiments. Orthogonal analysis shows that the optimal fermentation was obtained in the condition of 48-h seed culture, 120-h fermentation, 16% inoculum, 180rpm, containing 30% extracts, 8% ammonium sulphate supplement and pH 5. This optimal condition was verified at 800-mL level in a 1.3L fermentor. The ethanol yield reached 82.27% of the theoretical (20.57g/L) after 120h.

Suggested Citation

  • Xu, Jian & Liu, Shijie, 2009. "Optimization of ethanol production from hot-water extracts of sugar maple chips," Renewable Energy, Elsevier, vol. 34(11), pages 2353-2356.
    • Handle: RePEc:eee:renene:v:34:y:2009:i:11:p:2353-2356
    DOI: 10.1016/j.renene.2009.03.025
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    Cited by:

    1. Kuo-Ting Wang & Chengyan Jing & Christopher Wood & Aditi Nagardeolekar & Neil Kohan & Prajakta Dongre & Thomas E. Amidon & Biljana M. Bujanovic, 2017. "Toward Complete Utilization of Miscanthus in a Hot-Water Extraction-Based Biorefinery," Energies, MDPI, vol. 11(1), pages 1-22, December.

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