Fig. 7From: Stereoselective biotransformation of racemic mandelic acid using immobilized laccase and (S)-mandelate dehydrogenaseBi-enzymatic system consisting of immobilized SMDH and immobilized laccase catalyzed the conversion of (S)-mandelic acid to benzoylformic acid. Open circle indicated MA and close square indicated BA, respectively. Reactions were performed in triplicate, and error bars represented standard deviations (StDev). Inset HPLC trace of MA and BA at the beginning and the end of stereoselective transformation. a HPLC of MA; b HPLC of the beginning reaction mixture; c HPLC of the end reaction mixture; d HPLC of BABack to article page