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12日星期四
active lactobacillus drinks and yogurt
Lactic acid bacteria beverages and yogurt have some differences . Yogurt and milk nutrients close to the daily supplement is a good source of protein and calcium . However, in the fermentation of yogurt bacteria used in the acid resistance is usually poor , difficult to reach the stomach when drinking . Calcium lactate astrointestinal conditioning effect is very limited. The protein content of lactic acid bacteria drinks , although only about one-third of yogurt , but which contains probiotics acid and growth activity was stronger, have better gastrointestinal health functions.
Lactic acid bacteria fermented milk drinks in the production process and technology requirements than ordinary dairy production enterprises should have some technical , research and capital strength . 1996 Prince of milk lactic acid bacteria beverage industry to open up China 's buffered lactic acid . To " 72 hours fermentation, 18 billion lactic acid bacteria, improve gastrointestinal health of Chinese people ," the functional demands and deployment type milk drinks form a strong segment. Lactic acid bacteria beverage unique taste and unique health care function has been consumer recognition and love. With the increasing awareness of consumer health , nutrition and health food as popular lactic acid bacteria beverage is bound to become more consumer choice. Experts predict : the next three to five years will be China's rapid development of industry lactobacillus "golden period ."
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