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Conversion of furfural in aerobic and anaerobic batch fermentation of glucose by Saccharomyces cerevisiae
Dept. of Chem. Reaction Engineering, Chalmers University of Technology.ORCID-id: 0000-0003-4887-2433
Dept. of Gen./Marine Microbiology, University of Göteborg.
Dept. of Chem. Reaction Engineering, Chalmers University of Technology.
Dept. of Chem. Reaction Engineering, Chalmers University of Technology.
1999 (Engelska)Ingår i: Journal of Bioscience and Bioengineering, ISSN 1389-1723, E-ISSN 1347-4421, Vol. 87, nr 2, s. 169-174Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The effect of furfural on aerobic and anaerobic batch cultures of Saccharomyces cerevisiae CBS 8066 growing on glucose was investigated. Furfural was found to decrease both the specific growth rate and ethanol production rate after pulse additions in both anaerobic and aerobic batch cultures. The specific growth rate remained low until the furfural had been completely consumed, and then increased somewhat, but not to the initial value. The CO2 evolution rate decreased to about 35% of the value before the addition of 4 g·l-1 furfural, in both aerobic and anaerobic fermentations. The decrease of the CO2 evolution rate was rapid at first, and then a more gradual decrease was observed. The furfural was converted mainly to furfuryl alcohol, with a specific conversion rate of 0.6 (± 0.03) g (furfural)·g- 1 (biomass)·h-1 by exponentially growing cells. However, the conversion rate of furfural by cells in the stationary phase was much lower. A previously unidentified compound was detected during the conversion of furfural. This compound was characterized by mass spectrometry and it is suggested that it is formed from furfural and pyruvate.

Ort, förlag, år, upplaga, sidor
Society of Fermentation and Bioengineering , 1999. Vol. 87, nr 2, s. 169-174
Nyckelord [en]
Biotransformation, Ethanol, Furfural, Yeast
Nationell ämneskategori
Industriell bioteknik
Identifikatorer
URN: urn:nbn:se:hb:diva-14853DOI: 10.1016/S1389-1723(99)89007-0Scopus ID: 2-s2.0-0032956185ISBN: 13891723 (ISSN) OAI: oai:DiVA.org:hb-14853DiVA, id: diva2:1236331
Tillgänglig från: 2018-08-01 Skapad: 2018-08-01 Senast uppdaterad: 2018-08-08Bibliografiskt granskad

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