Fig. 2.

Effect of PEG molecular weight on elastase partition and purification factor (PF). Enzyme partitioning with respected to MR was performed in systems containing 20% (w/w) PEG and 13.2% (w/w) KH₂PO₄-K₂HPO₄ (pH 7.5). Three replicates were made to estimate experimental error with a, b, c, d above the columns standing for the significant difference (of recovery) by Duncan’s multiple range test (P=0.05)