Phenolic and flavonoid antioxidant activity via free radical scavenging

The term “Antioxidant activity via phenolic/flavonoid scavenging of free radicals” does **not** refer to a single molecule, receptor, enzyme, or protein. Instead, it describes the general ability of **phenolic compounds** and **flavonoids**—two large families of plant-derived chemicals—to neutralize free radicals through various mechanisms such as hydrogen atom transfer and electron donation. These compounds are widely distributed in foods and medicinal plants. Their health benefits are attributed to their strong antioxidative properties, which can contribute to protection against diseases associated with oxidative stress including cancer, cardiovascular diseases, neurodegenerative disorders, diabetes, and inflammation. The structural features that determine their efficacy include the number and position of hydroxyl groups on the aromatic rings; more hydroxyl groups generally increase antioxidant potential. This “target” is actually an umbrella term for diverse small molecules acting through similar chemical mechanisms rather than binding or modulating any specific biological macromolecule like receptors or enzymes.[1][2][3][4] --- **Note:** This entry is *incorrect* as a therapeutic target because it does not represent any defined molecular entity such as an enzyme or receptor but instead refers broadly to the collective antioxidative action of many structurally related small molecules found in nature.[1][2][3]

Other names

Phenolic antioxidant activityFlavonoid antioxidant activityFree radical scavenging by phenolics/flavonoidsAntioxidant capacity (phenolics/flavonoids)