Peroksüdatsioon

Peroksüdatsioon is a chemical reaction in which a peroxide is formed by the addition of oxygen to a substrate. This process is commonly observed in biological systems, where it plays a crucial role in various physiological functions. Peroxides are compounds that contain an oxygen-oxygen single bond, and they are often formed as intermediates in the metabolism of reactive oxygen species (ROS).

The peroksüdatsioon reaction can be initiated by the action of enzymes such as cytochrome P450 or peroxidases, which catalyze the transfer of oxygen from molecular oxygen (O2) to the substrate. This process typically involves the formation of a hydroperoxide intermediate, which can then be further metabolized to form other products.

Peroxides are highly reactive and can participate in a variety of secondary reactions, including the oxidation of other molecules and the generation of additional ROS. These secondary reactions can have significant implications for cellular function, as excessive production of ROS can lead to oxidative stress and damage to cellular components.

In addition to its biological significance, peroksüdatsioon is also of interest in the context of environmental chemistry, where it can contribute to the degradation of pollutants and the formation of secondary pollutants such as ozone and particulate matter. Understanding the mechanisms and consequences of peroksüdatsioon is therefore important for both biological and environmental research.