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Table 3 Specific activities of L-arabinose reductase (LAR), L-arabitol 4-dehydrogenase (LAD), L-xylulose reductase (LXR) and xylitol dehydrogenase (XDH) in crude cell free extracts of Y161 grown on different carbon sources

From: A novel method to prepare L-Arabinose from xylose mother liquor by yeast-mediated biopurification

    Specific activity (U, mg of protein -1 )
Enzyme Cofactors Grown on galactose Grown on xylose Grown on xylitol
LAR NADPH 0.032 0.16 0.12
  NADH 0.002 0.014 0.011
LAD NAD 0.003 0.012 0.018
  NADP ND ND ND
LXR NADPH 0.004 0.021 0.024
  NADH ND ND ND
XDH NAD 0.86 5.0 5.2
  NADP 0.007 0.18 0.26
  1. Values presented are means of duplicates
  2. ND, not detectable.