VB2, vitamin B2, also known as riboflavin, is slightly soluble in water and stable when heated in neutral or acidic solutions. It is a component of flavases in the body (flavases play a role in hydrogen transfer in biological oxidation and reduction), which will affect the biological oxidation of the body and cause metabolic disorder when lacking. Its pathological changes are mostly manifested as inflammation of mouth, eyes and external genitalia, such as angular stomatitis, cheilitis, glossitis, conjunctivitis and bursitis, so this product can be used for the prevention and treatment of the above diseases. The storage of vitamin B2 in the body is very limited, so it should be provided through diet every day. Two properties of vitamin B2 are the main reasons for its loss: (1), which can be destroyed by light; (2) Heating in alkaline solution will be destroyed.
First, the physiological function of vitamin B2
1. Participating in the metabolism of carbohydrate, protein, nucleic acid and fat can improve the utilization rate of protein and promote its growth and development.
2. Participating in the growth and metabolism of cells is an essential nutrient for the metabolism and repair of tissues.
3. Strengthen liver function and regulate adrenaline secretion.
4. Protect the function of skin, hair follicle mucosa and sebaceous glands.
Second, the absorption and metabolism of vitamin B2
Most of the vitamin B2 in the diet exists in the form of flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) coenzyme combined with protein. After entering the stomach, it is separated from protein under the action of gastric acid and transformed into swimming in the upper digestive tract.
The separated vitamin B2 is absorbed in the upper part of the small intestine. When the intake is large, the liver and kidney often have high concentrations, but the body's ability to store vitamin B2 is limited. When it exceeds the renal threshold, it passes through the urinary system and is excreted in a free form. Therefore, everyday body tissues
Needs must be provided by diet.
Third, symptoms and toxicity caused by vitamin B2 deficiency
Unlike all other vitamins, a slight deficiency of vitamin B2 will not cause any serious diseases. However, severe vitamin B2 deficiency can cause some diseases, such as angular stomatitis, glossitis, seborrheic dermatitis of nose and face. Red eyes and cornea, congestion and so on.