Liha töötlemine
2003). When
that received FSIS-approval for experimental simulated chemical dehairing systems were
testing by the industry (Sofos and Smith tested in vitro on removed whole beef hides
1998). The aim of chemical dehairing is to inoculated with E. coli O157:H7 and
remove hair, mud, manure, other extraneous Salmonella, Carlson et al. (2008b) found that
matter, and associated microbial contami- deluging with SS (6.2%, 30°C) or potassium
nants from animal hides before their removal cyanate (PC; 2.4%, 30°C) reduced E. coli
from carcasses. Applications (in vitro) of O157:H7 by 4.8–5.1 log10 CFU/cm2 and
chemical dehairing on artificially inoculated Salmonella by 0.7 (PC) and 4.2 (SS) log10
bovine hide samples suggested that treatment CFU/cm2.
with 10% sodium sulfide (SS) for 16 seconds Physical separation of the dehairing