Abstract: p { margin-bottom: 0.21cm; } Hundreds of tonnes of hazardous waste are released to the air, water, and land by industry every hour of every day. The chemical industry is the biggest source of such waste and the number of agent considered toxic is continuosly increasing due also to a series of more restrictive laws and regulamentations (REACH).The term Green Chemistry was coined in the 1990s, to bring focus to an increasing interest in developing more environmentally friendly chemical processes and products. In this term the Green Chemistry represents the most concrete answer of the scientific community to the pressing enviromental needs and sustainability. There is a pool of clean technologies that are becoming widely studied or used from wich catalysis is a well established one, well proven at the largest volume end of the chemicals industry. Green Chemistry begin by design and design derive from inspiration. Nature is the biggest chemical laboratory in the world and produces , every days tonnes of chemicals in absolutely eco-friendly and sustainable way. The secret of natural chemistry are the enzymes, "Why don\'t take ispiration from the enzyme to setup new green chemical processes. An example of oxidative reactions inspired by the enzyme Gluatione Peroxidase will be discussed to highlight the reduction of produced waste, the reduction of energy requirement and the mild and ecofriendly confitions used.