Louis Jacques Thénard first noted catalase's existence in 1811, and Oscar Loew named and further characterized it in 1900.
While Thénard observed the substance responsible for hydrogen peroxide breakdown, it was Loew who formally identified and named it catalase. Here's a more detailed breakdown:
- 1811: Louis Jacques Thénard: While studying hydrogen peroxide (H2O2), which he also discovered, Thénard observed that its decomposition seemed to be accelerated by a substance. He essentially recognized the existence of catalase activity without isolating or naming the enzyme itself.
- 1900: Oscar Loew: Loew is credited with officially naming the enzyme "catalase." He identified catalase's presence in various plants and animals. Loew also investigated its properties and importance.
In summary, Thénard initially observed catalase activity, and Loew later identified and named the enzyme.
