Pure lactic acid is a colorless liquid, is a colorless to pale yellow liquid. Odorless, hygroscopic. The relative density of 1.2060 (25/4 ℃). Melting point 18 ℃. Boiling point 122 ℃ (2kPa). Refractive index nD (20 ℃) ??1.4392. With water, ethanol, glycerin, insoluble in chloroform, carbon disulfide and petroleum ether. Heating under normal pressure, concentrated to 50%, part of the anhydride into milk, thus products often contain 10% -15% of the milk anhydride.
2013年8月29日星期四
Calcium-binding protein is very important
In skeletal muscle during contraction , calcium-binding protein plays a very important role. Calcium deficiency is a variety of troponin content decreased skeletal muscle contractile function weakened, the body will feel tired and weak. Treatment of Ethyl lactate in calcium naturally based, and calcium should be based tonic . Patients can eat more calcium-rich foods, such as dairy, shrimp, seaweed , egg yolk, soybeans, green leafy vegetables. For patients with a serious shortage of bone mass , in addition to outside Sibu , under the guidance of a doctor can use calcium preparations, such as ferrous lactate, calcium gluconate . Calcium is also not too much , not to exceed 800 mg per day for adults . The elderly in addition to calcium , should also be appropriate to add calcitonin . Because as we age, the body organs function decline , the elderly reduce their secretion of calcitonin , calcitonin is difficult to rely on their own to stop bone loss.
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