Ulster University Logo

Ulster Institutional Repository

Continuous ethanol production by thermotolerant Kluyveromyces marxianus IMB3 immobilized on mineral Kissiris at 45 degrees C

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

Singh - Nee Nigam, Poonam, Banat, IM, Singh, D, McHale, AP and Marchant, R (1997) Continuous ethanol production by thermotolerant Kluyveromyces marxianus IMB3 immobilized on mineral Kissiris at 45 degrees C. WORLD JOURNAL OF MICROBIOLOGY and BIOTECHNOLOGY, 13 (3). pp. 283-288. [Journal article]

Full text not available from this repository.

Abstract

Thermotolerant Kluyveromyces marxianus var. marxianus IMB3 yeast strain was immobilized on Kissiris (mineral glass foam derived from lava) in column packed reactors, and used for ethanol production from glucose or molasses under continuous culture conditions at temperatures between 40 and 50 degrees C, Both ethanol yield and fermentation efficiency were highest at 45 degrees C and a dilution rate (D) of 0.15/h. Increasing sugar concentration led to an increase in ethanol yield of up to 68.6 and 55.9 g/l on approx. 200 g glucose or molasses, respectively Optimum fermentation efficiency (experimental yields over theoretical maximum yields) however was at about 15% sugar for both glucose and molasses. Slight aeration (25 ml of air/min) through the medium addition line was found advantageous due to its mixing effect and probable maintenance of activity.

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
Biomedical Sciences Research Institute > Pharmaceutical Science and Practice
ID Code:5543
Deposited By:Dr Poonam Singh - Nee Nigam
Deposited On:21 Dec 2009 11:22
Last Modified:04 Dec 2012 11:46

Repository Staff Only: item control page