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9日星期五
in the production of lactic acid during transport are likely to be tuberculosi
Before and after drinking milk, it will affect the absorption of milk, milk and medicines will react in a variety of ingredients harmful substances.
Ethyl lactate, must be boiled before drinking Milk in the production of various aspects of the transport process are likely to be tuberculosis, dysentery bacillus bacteria and other harmful pollution, bagged milk on the market widespread adoption of pasteurization, but its instant sterilization may also not complete, residual bacteria in the appropriate temperature will continue to multiply as pathogens causing diarrhea and other symptoms, so the milk must be boiled before drinking. Best use of indirect heating method, but not for too long boiling time, direct heating will produce milk protein coagulation, boil them for too long by the calcium phosphate will become neutral and acidic precipitation, lactose also due to coking and decomposition of ferrous lactate and formic acid, so that the nutritional value of milk and the color, smell and taste were decreased. Not fasting, preferably with some starchy foods with food, fasting gastrointestinal motility fast, greatly reducing the residence time of milk in the stomach, is not conducive to digestion and absorption of nutrients, if you drink milk while eating some bread, bread and other starchy foods can help the body to fully absorb the milk rich in nutrients. Of course meal with a choice of milk has the same effect will be. Never direct the big mouth to drink, to drink or chewing small mouth with a spoon taste, big mouth when drinking milk direct contact with stomach acid to form acidic protein clots, may cause gastrointestinal weak people cause diarrhea and bloating. Chew slowly will facilitate ongoing with milk and saliva to help the body's digestion and absorption of nutrients. Can not eat together with chives, milk and chives mixed with oxalic acid and more food, it will affect the absorption of calcium. Can not eat oranges in about 1 hour before and after drinking milk, not oranges. Because the protein in milk once met with Orange in the acid, solidification occurs, thus affecting the digestion and absorption of milk, in this time period should not eat other acidic fruits.
订阅:
博文评论 (Atom)
没有评论:
发表评论