Fig. 4
a Effect of temperature on the purified L-arginase from marine Bacillus licheniformis OF2. b Effect of pH on the purified L-arginase from marine Bacillus licheniformis OF2 (Sodium phosphate buffer (pH 6 and 7), Tris–HCl buffer (pH 8), glycine buffer (pH 9), and NaHCO3–NaOH buffer (pH 10 and 11). c pH stability of L-arginase from marine Bacillus licheniformis OF2. d Effect of metal ions on L-arginase from marine Bacillus licheniformis OF2