▶ Previous Artlcle : #2-4. Introduction of Energy Vitamin B-Complex

 

 

Vitamin B2 (Riboflavin) 

 

Vitamin B2 (riboflavin) is mainly used as an ingredient of FAD, a coenzyme involved in energy metabolism (Figure 5).

 

In general, FADH2 generates 1.5 ATP in the mitochondrial electron transport system.

 

It is also involved in β-oxidation of fatty acids.

 

Among the B-complex vitamins, riboflavin is also classified as an antioxidant because FAD is involved in the oxidation-reduction process of glutathione.

 

 

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In addition, riboflavin is also involved in the synthesis of vitamin B3 (niacin).

 

A deficiency may occur if a diet lacking riboflavin lasts for several months, mainly causing symptoms such as cheilitis, angular stomatitis, glossitis, seborrheic dermatitis, eye redness, anemia, and hypersensitivity to light.

 

It is also involved in damage to various tissues and delay in growth.

 

Due to the water-soluble properties, the symptoms of hypervitaminosis rarely appear.

 

The reason why urine turns yellow after taking nutritional supplements containing vitamin B-complex is the color that appears when flavin of B2 is oxidized, as if a plant containing flavonoids has become yellow in the fall.

 

 

Figure 5. Riboflavin, FAD, and FMN. 

 

 

 

-To be continued