Fig. 7

"In vitro-type" amination of a prochiral ketone. Investigation of catalyst 6 (a), catalyst 7 (b) and catalyst 8 (c) in the reductive amination of 4-phenyl-2-butanone over 48 h. The biocatalyst was either applied as resting cells (black square), as lyophilized cells (black triangle), as cell-free extract (grey diamond) or as lyophilized cell-free extract (grey circle), respectively and the reaction was monitored over 48 h