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7月24日星期三
Advantages of lactic acid bacteria
Lactic acid bacteria drinks and milk distinction Milk lactobacillus milk not only has all the nutrients and contain high animal protein, no fat, low-lactose, a more significant role in health care. magnessium lactate, the activity of lactic acid bacteria fermented milk, eliminate the smell of raw milk, milk quality is more delicate. Whether you need nutritional supplements for pregnant women, or the working pressure of the sub-health workers; either frail elderly, or growing children are available lactic acid milk enhance nutrition, growth and reproduction of lactic acid bacteria in the human body, not only can produce beneficial human health, Ethyl lactate, enzymes, peptides, antibiotics and B vitamins and other nutrients, can also inhibit intestinal pathogens and toxic substances, regulation of intestinal flora balance.
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