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Ethanol production at 45 degrees C by Kluyveromyces marxianus IMB3 immobilized in magnetically responsive alginate matrices

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Brady, D, Singh - Nee Nigam, Poonam, Marchant, Roger, McHale, L and McHale, Anthony (1996) Ethanol production at 45 degrees C by Kluyveromyces marxianus IMB3 immobilized in magnetically responsive alginate matrices. BIOTECHNOLOGY LETTERS, 18 (10). pp. 1213-1216. [Journal article]

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Abstract

The thermotolerant yeast, Kluyveromyces marxianus IMB3 produced 11g ethanol/l during growth at 45 degrees C on media containing 4% (w/v) lactose when immobilized in alginate beads whereas the free cells produced 5g ethanol/l. A magnetically responsive biocatalyst, prepared by incorporating Fe3O4 into the alginate matrix increased ethanol production to 12g/l in batch-fed reactors. Ethanol concentrations were further increased to a maximum of 18g/l by immobilization of the endogenous K. marxianus beta-galactosidase to the Fe3O4 particles prior to inclusion into the alginate matrix. Maximum ethanol productivity by the system was 87% of the maximum theoretical yield.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Faculty of Life and Health Sciences > School of Pharmacy and Pharmaceutical Science
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Infection and Immunity/Microbiology
ID Code:5548
Deposited By:Dr Poonam Singh - Nee Nigam
Deposited On:21 Dec 2009 11:24
Last Modified:04 Dec 2012 11:48

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