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Ethanol production from lignocellulose by the dimorphic fungus Mucor indicus

Patrik R Lennartsson (Institutionen för kemi- och bioteknik, Kemisk reaktionsteknik) ; Keikhosro Karimi (Institutionen för kemi- och bioteknik) ; Lars Edebo ; Mohammad J. Taherzadeh (Institutionen för kemi- och bioteknik)
World Bioenergy. Jönköping, Sweden, 27-29 May, 2008 (2008)
[Konferensbidrag, övrigt]

Ethanol production from dilute-acid hydrolyzate by the dimorphic fungus Mucor indicus was investigated. A mixture of different forest wood chips dominated by spruce was hydrolyzed with 0.5 g/L sulfuric acid at 15 bar for 10 min, yielding different sugars including galactose, glucose, mannose, and xylose, but also different fermentation inhibitors such as acetic acid, furfural, hydroxymethyl furfural (HMF), and phenolic compounds. We induced different morphological growth of M. indicus from purely filamentous, mostly filamentous, mostly yeast-like to purely yeast-like. The different forms were then ysed to ferment the hydrolyzate. They tolerated the presence of the inhibitors under anaerobic batch cultivation well and the ethanol yield was 430-440 g/kg consumed sugars. The ethanol productivity depended on the morphology. Judging from these results, we conclude that M. indicus is useful for ethanol production from toxic substrates independent of its morphology.

Nyckelord: bio-ethanol, lignocellulosic materials, dilute acid hydrolysis, Mucor indicus, dimorphic fungi

Denna post skapades 2012-06-20. Senast ändrad 2012-06-20.
CPL Pubid: 159225


Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Kemisk reaktionsteknik (2005-2014)
Institutionen för kemi- och bioteknik (2005-2014)
Institutionen för biomedicin, avdelningen för infektionssjukdomar (GU)


Industriell bioteknik
Mikrobiologi inom det medicinska området

Chalmers infrastruktur