Most bacteria stop breeding

Cryogenic preservation is widely used by technical measures , in view of China's national conditions , cold chain system is the most important means of meat preservation . Is stored in refrigerated meat slightly above its freezing temperatures , usually between 2 ~ 4 ℃ , most of this range stop breeding
bacteria , psychrotrophic spoilage bacteria will still grow , recently discovered Lisi OK mononuclear proliferation of bacteria and intestinal inflammation Yersinia knot can reproduce. Ethyl lactate of bacteria in the meat very fast, in the appropriate conditions, some bacteria only for 20min or less time , in fact , under normal circumstances, so quickly to reach because of all the environmental conditions are satisfied impossible, ferrous lactate the length of the growth of bacteria strains , nutritional composition and temperature, PH value and
the water activity , low-temperature preservation has the following disadvantages : ( 1 ) freezing and thawing ice formation due to salting-out effect Yi, the decline in the quality of meat ; ( 2 ) such as packaging bad , caused by
surface moisture will sublimate " freeze burn " phenomenon ; ( 3 ) high transport costs when frozen Wei .