Activity of xylose reductase from Candida mogii grown in media containing different concentrations of rice straw hydrolysate

Mayerhoff, Z.D.; Roberto, I.C.; Franco, T.T.

Applied Biochemistry and Biotechnology 91-93: 729-737

2001


ISSN/ISBN: 0273-2289
PMID: 11963901
DOI: 10.1385/abab:91-93:1-9:729
Accession: 045160205

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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 XR activity 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/) 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.