Figure 4

Solvent tolerances of free cells (A) and alginate-chitosan immobilized cells (B) . Ethyl acetate (□), n-hexane (○), C₄MIM·PF₆ (△). Residual activities of the biocatalysts were measured in aqueous buffer after separating from the solvent, as indicated in the Experimental Section. Error bars show standard deviation from separate experiments conducted in duplicate.