Selective utilization of fructose to glucose by Candida magnoliae , an erythritol producer |
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Authors: | Ji-Hee Yu Dae-Hee Lee Yong-Joo Oh Ki-Cheol Han Yeon-Woo Ryu and Jin-Ho Seo |
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Institution: | (1) School of Agricultural Biotechnology and Center for Agricultural Biomaterials, Seoul National University, 151-742 Seoul, Korea;(2) Korea Institute of Science and Technology, 130-650 Seoul, Korea;(3) Department of Molecular Science and Technology, Ajou University, 442-749 Suwon, Korea |
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Abstract: | Candida magnoliae isolated from honeycomb is an industrially important yeast with high erythritol-producing ability. Erythritol has been used
as functional sugar substitute for various foods. In order to analyze the physiological properties of C. magnoliae, a study on sugar utilization pattern was carried out. The fermentation kinetics of glucose and fructose revealed that C. magnoliae has the discrepancy in glucose and fructose utilization when it produces erythritol. In contrast to most yeasts, C. magnoliae showed preference for fructose to glucose as a carbon source, deserving the designation of fructophilic yeast. Such a peculiar
pattern of sugar utilization in C. magnoliae seems to be related to the evolutionary environment. |
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Keywords: | Candida magnoliae fructophilic yeast fructose utilization erythritol |
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