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1·The activity level of glycerol dehydrogenase, 1,3-propanediol oxidoreductase and glycerol dehydratase are 2.24, 1.59 and 1.50 times higher respectively compared to conditions before optimization.

在该条件下得到的甘油脱氢酶、1，3—丙二醇氧化酶和甘油脱水酶活力水平分别为对照组的2.24倍、1.59倍和1.5倍。