2013年8月1日星期四

The concentration of lactic acid

Generally when an organization's energy through aerobic respiration can not be met, the organization can not get enough oxygen or oxygen can not be fast enough to handle the case of lactic acid concentration will rise. In this case, the pyruvate dehydrogenase can promptly convert pyruvate acetyl coenzyme A, began to accumulate pyruvate. Sodium lactate, if the reduction of lactate dehydrogenase pyruvate to lactate is not the case of glycolysis and ATP production will be suppressed. Lactic acid producing process:
Pyruvate + NADH + H + → lactate + NAD +
The significance of this process is needed to rebuild glycolysis nicotinamide adenine dinucleotide (NAD +) to maintain the production of adenosine triphosphate.
Sufficient oxygen in muscle cells of lactic acid can be oxidized to pyruvate, and then directly used as the citric acid cycle of the fuel. It can also gluconeogenesis in the liver through the process of Cory cycle into glucose.
Bacteria of the genus Lactobacillus can also be lactic acid fermentation. These bacteria can live in the mouth, they produce magnessium lactate is leading cause of dental caries.
Lactic acid is often used in medicine in Ringer's lactate solution in. This is a human blood with isotonic sodium chloride, potassium chloride and a solution of lactic acid in distilled water. In injury, surgery or burns after blood loss often used to supplement the loss of blood lactate Ringer's solution.

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