描述
Riboflavin (vitamin B2) is an essential component for the enzyme cofactors FAD (flavin-adenine dinucleotide) and FMN (flavin mononucleotide). The name "riboflavin" actually comes from "ribose" and "flavin". Like the other B vitamins, riboflavin is required for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Riboflavin is present in many vegetables and meat and during digestion, various flavoproteins from food are degraded and riboflavin is resorbed. The reverse reaction is mediated by acid phosphatase 6. FMN can be converted to FAD via FAD synthetase, while the reverse reacting is mediated by nucleotide pyrophosphatase. FAD and FMN are important hydrogen carriers and take part in more than 100 redox reactions involved in energy metabolism.