flavonoide

Flavonoids are a diverse group of polyphenolic secondary metabolites found in plants. They are widespread in fruits, vegetables, grains, bark, roots, stems, flowers, and tea. Collectively, these compounds are often referred to as Vitamin P, though they are not vitamins in the traditional sense as they are not essential for human life. Flavonoids are characterized by a common structural backbone of 15 carbon atoms, arranged in three rings.

The functions of flavonoids in plants are varied and include protection against UV radiation, defense against pathogens, and as pigments that attract pollinators. In humans, flavonoids are primarily consumed through diet and are known for their antioxidant properties. They can scavenge free radicals, which are unstable molecules that can damage cells and contribute to aging and various diseases. Research suggests potential health benefits associated with flavonoid consumption, including cardiovascular protection, anti-inflammatory effects, and possible roles in preventing certain chronic diseases.

There are six major subclasses of flavonoids: flavonols, flavones, flavanones, flavanonols, isoflavones, and anthocyanidins. Each subclass has a distinct chemical structure and is found in different plant sources, contributing to the diverse range of colors and flavors in the plant kingdom. For example, anthocyanidins are responsible for the red, purple, and blue colors in berries and red wine.