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1日星期日
reduces degradation caused by pit mud lactate
Water rich in trace elements , calcium, magnesium , iron content is low, the conductance of 60% for the general well water . These trace minerals microbes , such as molds, yeasts and microbial growth and reproduction of the metabolic enzymes play a good role in promoting beneficial saccharification and fermentation aroma wine , make wine suitable for water . The water with wine, can reduce the degradation caused by the mud pit lactate, Lactic acid iron content , thereby improving wine quality .
From the point of view of lactic acid powder , there are suitable wine microflora . Heart Wine production plant perennial food wine to keep cool and moist , and the fresh air, is a good variety of habitat for beneficial microorganisms .
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