Ethanol production by continuous fermentation of d-(+)-cellobiose, d-(+)-xylose and sugarcane bagasse hydrolysate using the thermoanaerobe Caloramator boliviensis

Carla F. Crespo, Malik Badshah, Maria Teresa Arminda Alvarez Aliaga, Bo Mattiasson

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

The recently isolated anaerobic bacterium Caloramator boliviensis with an optimum growth temperature of 60. °C can efficiently convert hexoses and pentoses into ethanol. When fermentations of pure sugars and a pentose-rich sugarcane bagasse hydrolysate were carried out in a packed bed reactor with immobilized cells of C. boliviensis, more than 98% of substrates were converted. Ethanol yields of 0.40-0.46. g/g of sugar were obtained when sugarcane bagasse hydrolysate was fermented. These features reveal interesting properties of C. boliviensis in producing ethanol from a renewable feedstock.

Original languageEnglish
Pages (from-to)186-191
Number of pages6
JournalBioresource Technology
Volume103
Issue number1
DOIs
StatePublished - Jan 2012
Externally publishedYes

Bibliographical note

Funding Information:
This research has been supported by the Swedish International Development Cooperation Agency (SIDA) and the Swedish Agency for Research Cooperation with Developing Countries (SAREC).

Funding Information:
Malik Badshah was supported by a fellowship granted by Higher Education Commission of Pakistan.

Keywords

  • Bioethanol
  • Caloramator
  • Continuous fermentation
  • Lignocellulose hydrolysate
  • Pentose fermentation

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