Use of Aqueous Two-Phase and Three-Phase Partitioning Systems for Purification of Lipase Obtained in Solid-State Fermentation by Rhizopus arrhizus

Fig. (4) Influence of PEG4000 concentration on purification fold in top phase (-●-) and recovery yield of lipase in the top phase (bar) with PEG4000/22% potassium sodium tartrate ATPS.