Fig. 1

Comparison of enzymatic activity in a plate assay of cell-free broth (sup), concentrated cell-free broth (sup conc.) and fractions precipitated with (NH₄)₂SO₄ (20, 40, 60 and 80% AS). The largest halo zone was observed in the fractions saturated with AS up to 60%. All fractions were applied on MM medium supplemented with A 0.1% PBSA; B 0.1% PBS; C 0.1% PCL