**Engineering the Enantioselectivity of Yeast Old Yellow Enzyme OYE2y in Asymmetric Reduction of (***E***/***Z***)-Citral to (***R***)-Citronellal**

**Xiangxian Ying 1,\*, Shihua Yu 1, Meijuan Huang 1, Ran Wei 1, Shumin Meng 1, Feng Cheng 1, Meilan Yu 2, Meirong Ying 3, Man Zhao <sup>1</sup> and Zhao Wang <sup>1</sup>**

