Abstract
Sugarcane bagasse hemicellulose hydrolysates, pretreated by either over-liming or electrodialysis and, supplemented with nutrient materials, were fermented to ethanol using Pachysolen tannophilus DW06. Compared with detoxification by over-liming, detoxification by electrodialysis decreased the loss of sugar and increased the acetic acid removal, leading to better fermentability. A batch culture with electrodialytically pretreated hydrolysate as substrate was developed giving 21 g ethanol l−1 with a yield of 0.35 g g−1 sugar and productivity of 0.59 g l−1 h−1.
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Acknowledgements
This study was supported by National Basic Research of China (‘973’ project, No. 2004CB719703), Hi-Tech Research and Development Program of China (‘863’ project, No. 2006AA020101) and Research Fund of Key Laboratory of Microbiology, College of Life Science, Heilongjiang University, China.
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Cheng, KK., Ge, JP., Zhang, JA. et al. Fermentation of pretreated sugarcane bagasse hemicellulose hydrolysate to ethanol by Pachysolen tannophilus . Biotechnol Lett 29, 1051–1055 (2007). https://doi.org/10.1007/s10529-007-9361-2
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DOI: https://doi.org/10.1007/s10529-007-9361-2