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9月13日星期五
Effectively inhibit the growth of pathogenic
1) Optical purity of more than 99% of lactic acid, the pesticides used in the production release of pesticides, such as herbicides, with non-toxic to crops and soil characteristics and efficient;
2) lactic acid polymer for the production of agricultural film, plastic film can replace it, let the soil Lactic acid bacterial decomposition, conducive to environmental protection;
3) Lactic acid is also used for green fodder storage agent, forage maturation agent;
4) in swine and poultry feed as growth promoters. Lactic acid can reduce the PH value of the stomach, digestive enzymes play activated, the role of improving the acid digestion, and the growth of beneficial intestinal epithelium. Piglets after weaning feed containing acidifier lactic acid powder to feed their weaning period can be increased by 15% in weight;
5) Lactic acid inhibit microbial growth. Lactation period of the pig will be infected with by E. coli and Salmonella diseases caused by, in the feed to join lactic energy prevent the piggy under the the gastrointestinal tract growth of pathogenic bacteria;
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