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Production of Xylitol by the Thermotolerant Kluyveromyces marxianus IMB Strains

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

Mueller, Michael, Wilkins, Mark and Banat, Ibrahim (2011) Production of Xylitol by the Thermotolerant Kluyveromyces marxianus IMB Strains. J Bioprocess Biotechniq, 1:102e . [Journal article]

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DOI: 10.4172/2155-9821.1000102e


Xylitol is a fermentation product of xylose that can be used as a sweetener by diabetics. Five novel Kluyveromyces marxianus yeast strains, IMB1, IMB2, IMB3, IMB4 and IMB5, have shown the ability to grow on xylose and produce xylitol. In comparison to chemical synthetic xylitol production, biological production can be more cost effective since no expensive metal catalysts and high temperatures are needed. The five K. marxianus IMB strains were tested at temperatures ranging from 25°C to 45°C with xylose as the sole carbon source. IMB2 was found to be the best xylitol producer among the IMB yeast. Product yields (YP/S) up to 0.90 g/g at 40°C with 1.0 g/l initial cell mass and 50 g/l initial xylose concentration were observed for IMB2.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Pharmaceutical Science and Practice
ID Code:20064
Deposited By:Professor Ibrahim Banat
Deposited On:22 Sep 2011 13:55
Last Modified:16 May 2012 10:51

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