This volume discusses the effects of naturally occurring and process-generated prooxidants and antioxidants on various aspects of food quality. It emphasizes the chemical nature and functional properties of these compounds and their interactions with other food components in storage and processing, specifically focusing on the sensory quality, nutritional value, health-promoting activity, and safety aspects of foods. It examines the analysis of prooxidants and antioxidants in foods, covers measurement and mechanisms of antioxidant activity, presents case studies on selected natural food antioxidants, and discusses functional antioxidant foods.