lactic acid molecules are present two optical enantiomers

Prospects: lactic acid (α-hydroxy - propionic acid) widely present in the human body, animals and micro-organisms Among metabolic, but also in people's lives are closely related to a variety of foods. Lactic acid molecules exist In the two optical Ethyl lactate (D-lactic acid and L-lactic acid), its physical and chemical properties are very similar, just spin Light-contrast, L-lactic acid is D-optical, optical and D-lactic acid is L-. Medical research shows, The body has only L-lactic acid metabolic enzymes (L-lactate dehydrogenase); while D-lactic acid into the body, Due to the inability to metabolize, potassium lactate acidity increase, excessive intake of the metabolic disorders caused by Adverse reactions. To this end, the World Health Organization, adult daily intake of D-lactic acid amount per kilometer Kg body weight must not exceed 100 mg, and disables the baby food to add D-lactic acid, the L-Lactic acid without any restrictions.