1. Introduction
2. Structural aspects and physicochemical properties of PPO and laccase Ryan Dixon
3. Functional roles of PPO Fatemeh Khodadadi, Mehdi Kamali
4. Recombinant PPO: Production, purification, and activity assays Yu Li
5. Emerging industrial applications of PPO E. Selvarajan
6. Recent advances in the design of PPO inhibitors Chen Wai Wong
7. Reaction mechanism and redox potential of laccase Nabangshu Sharma
8. Biological functions of laccases
9. Challenges and applications of laccase in bioremediation Wei-Qin Zhuang
10. Immobilization of laccase for industrial wastewater treatment: Current challenges and future Perspectives Hubert Cabana
11. Engineering of laccase through directed evolution and computational chemistry Victor Guallar