Sonoenzymatic decolourization of an azo dye employing immobilized horse radish peroxidase (HRP): A mechanistic study

- Coupling of immobilized HRP with sonication for acid red decolourization.
- Cavitation did not denature the immobilized HRP significantly.
- Sonication and enzyme degradation followed negative synergy.
- PEG acted differently at ambient and elevated static pressure.