"nonhabituated" - 1 õppematerjal

Liha töötlemine

coli O157:H7 was more are considerably more effective in reducing resistant against acetic acid sprays than non- TCC and E. coli than water-washing (Gill adapted cells. Similarly, acid-habituated E. and Landers 2003a). Furthermore, combina- coli O157:H7 was more resistant to spray- tion of lactic acid rinses of carcasses, primal chilling of beef with chemical solutions than cuts, and contact surfaces for carcass fabrica- nonhabituated cells (Stopforth et al. 2004). tion may reduce the numbers of total bacte- Furthermore, there is a potential risk for ria, coliforms, and E. coli on carcasses and extended survival of E. coli O157:H7 in envi- the processing environment, thereby improv- ronmental niches, where acidic decontamina- ing the sanitary conditions of the plant (Bacon tion runoff fluids are mixed with water, et al. 2002a). forming sublethal pH environments (pH 4