The coenzymes FMN and FAD are play a catalytic role in redox reactions, such as the conversion of retinol to the active metabolite retinoic acid, tryptophan to niacin, and pyruvate to α-ketogluterate, and are cofactors in the electron transport chain. Riboflavin is also a component of the antioxidant enzyme, glutathione reductase.
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The [[Nutrition Glossary#Coenzyme|coenzymes]] FMN and FAD are play a catalytic role in redox reactions, such as the conversion of retinol to the active metabolite retinoic acid, tryptophan to niacin, and pyruvate to α-ketogluterate, and are cofactors in the electron transport chain. Riboflavin is also a component of the antioxidant enzyme, glutathione reductase.