Production of ethanol and mycelial biomass from rice straw hemicellulose hydrolyzate by Mucor indicus
Ethanol and mycelial biomass production from dilute-acid hydrolyzed hemicellulose fraction of rice straw was investigated by cultivation of Mucor indicus and compared with cultivation of Pichia stipitis. The hydrolysis resulted in 189 g xylose and 29 g glucose per kg of the straw used. Anaerobic cul...
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Veröffentlicht in: | Process biochemistry (1991) 2006-03, Vol.41 (3), p.653-658 |
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Sprache: | eng |
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Zusammenfassung: | Ethanol and mycelial biomass production from dilute-acid hydrolyzed hemicellulose fraction of rice straw was investigated by cultivation of
Mucor indicus and compared with cultivation of
Pichia stipitis. The hydrolysis resulted in 189
g xylose and 29
g glucose per kg of the straw used. Anaerobic cultivation of
M. indicus resulted in formation of 0.46
g/g ethanol from glucose, while no ethanol but 0.65
g/g xylitol was produced from xylose. However, the fungus could produce ethanol from both hexoses and xylose present in the hydrolyzate aerobically, and yielded totally 0.24
g/g ethanol and 0.37
g/g mycelial biomass. Xylitol and glycerol were also produced by yields 0.18 and 0.08
g/g, respectively.
P. stipitis had a better performance in ethanol production at identical conditions with ethanol yield 0.38
g/g of the sugars within the hydrolyzate. |
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ISSN: | 1359-5113 1873-3298 1873-3298 |
DOI: | 10.1016/j.procbio.2005.08.014 |