木糖还原酶（XR）是D-木糖代谢途径中的关键酶，催化还原D-木糖成木糖醇。
Xylose reductase(XR) is a key enzyme in D-xylose metabolism, catalyzing the reduction of D-xylose to xylitol. The reported xylose reductase from C.
第三种绕过氧化还原反应辅助因子的不平衡的方法是利用一种能够在酵母中表达的木糖异构酶来替换还原酶和脱氢酶。
A third approach that bypasses the REDOX imbalance issue is to replace the reductase and dehydrogenase with one enzyme xylose isomerase that can be expressed in yeast.
以此为出发菌株，通过UV重复诱变，并结合高糖平板分离，得到木糖还原酶活力较高的较佳诱变株ZG - 24。
Strain ZG-24, with high D-xylose reductase activity, was obtained by UV repeated mutation and selection with high xylose concentration plate.
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