Jishuang Liu 1, Yu Xin 1, Zhidong Qiu 1, Qi Zhang 1, Tianzhu He 2, Ye Qiu 1, Weinan Wang*,Bioconversion of Ginsenoside Rf into Its Hydrated Derivative with Elevated Anti-inflammatory Effect by a Highly Specific Biocatalytic System of Cordyceps Sinensis.CHEMISTRY & BIODIVERSITY(王伟楠,*为通讯作者)