1.10.3.3 additional information - pH profile, overview 673049 1.10.3.3 4.5 8.3 at pH 4.5 and 8.3: approx. 50% activity 439894 1.10.3.3 5 9 free enzyme: approx. 60% activity at pH 5.0, less than 10% activity at pH 9.0, immobilized enzyme: approx. 80% activity at pH 5.0, approx. 45% activity at pH 9.0 439911