Activity of xylose reductase from Candida mogii grown in media containing different concentrations of rice straw hydrolysate |
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| Authors: | Mayerhoff Zea D V L Roberto Inês C Franco Telma T |
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| Institution: | (1) Faculty of Chemical Engineering, State University of Campinas, PO Box 6066, Campinas, SP, Brazil;(2) Department of Biotechnology, Faculty of Chemical Engineering of Lorena, PO Box 116, SP, Brazil |
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| Abstract: | Xylose reductase (XR) activity was evaluated in extracts of Candida mogii grown in media containing different concentrations of rice straw hydrolysate. Results of X Ractivity were compared to xylitol
production and a similar behavior was observed for these parameters. Highest values of specific production and productivity
were found for xylose reductase (35 U/g of cell and 0.97 U/g of cell·h], respectively) and for xylitol (5.63 g/g of cell
and 0.13 g/g of cell·h]) in fermentation conducted in medium containing 49.2 g of xylose/L. The maximum value of XR:XD ratio
(1.82) was also calculated under this initial xylose concentration with 60 h of fermentation. |
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| Keywords: | Candida mogii hydrolysate concentration rice straw xylitol xylose reductase |
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