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12月23日星期一
"Live" probiotics may improve intestinal flora
Constipation serious impact on quality of life , the data show that by 2015 will exceed gastric colorectal become human health, " the first killer ." Therefore , to enhance the body immunity , promote gastrointestinal function perfect white-collar workers have become compulsory homework.
The study found that constipation crowd micro- ecological balance of intestinal flora was severely damaged , probiotics significantly reduced the number of harmful bacteria increased significantly . Sodium lactate can adjust the intestinal flora , improve constipation. Bifidobacteria and lactobacilli can either kill harmful bacteria, decompose and discharge of toxic substances , cleaning the intestinal environment , can also produce lactic acid , acetic acid and other organic acids, promote intestinal peristalsis, improve constipation.
However , the role of the premise is that you take probiotics is not there , " activity" . Because probiotics are active lactic acid powder bacteria , must undergo the test of human gastric acid and bile , only to reach the intestine alive and still remain active after eating , can the human body " prebiotic ." However , the current market there are many probiotic drinks , wherein the probiotic composition contained few colonization in the intestine and can not be easily " inactivated ."
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