title: Treatment of cattle hides with Shellac solution to reduce hide-to-beef microbial transfer.
abstract: The hide-to-beef microbial transfer-reducing effects of a novel Shellac treatment of hides (based on "on-hair immobilization" of microorganisms) were evaluated. In the hide-to-meat direct contact laboratory-based experiments, treatment of hides (of varying visual cleanliness) with Shellac produced significant microbial reductions on beef: up to 3.6 log(10) CFU/cm(2) of total viable count of bacteria (TVC), up to 2.5 log(10) CFU/cm(2) of Enterobacteriaceae (EC) and up to 1.7 log(10) CFU/cm(2) of generic Escherichia coli (GEC). In a small commercial abattoir under "bad-case" conditions (slaughtering dirty cattle, inadequate process hygiene), treatment of hides with Shellac produced significant microbial reductions on beef carcasses: 1.7 log(10) CFU/cm(2), 1.4 log(10) CFU/cm(2) and 1.3 log(10) CFU/cm(2) of TVC, EC and GEC, respectively. In both laboratory- and abattoir-based trials, TVC reductions on beef achieved by the Shellac hide treatment were superior to those achieved by the comparative sanitizer rinse-vacuum hide treatment, but reductions of EC and GEC did not differ significantly between the two hide treatments.
authors.affiliation: University of Novi Sad, Faculty of Agriculture, Department of Veterinary Medicine, Trg D. Obradovica 8, 21000 Novi Sad, Serbia.
authors.forename: D
authors.initials: D
authors.lastname: Antic
authors.forename: B
authors.initials: B
authors.lastname: Blagojevic
authors.forename: S
authors.initials: S
authors.lastname: Buncic
mesh_terms: D000818:Animals; D000891:Anti-Infective Agents, Local / Q000494:pharmacology*; D002417:Cattle / Q000382:microbiology*; D015169:Colony Count, Microbial; D004755:Enterobacteriaceae / Q000187:drug effects* / Q000302:isolation & purification; D004926:Escherichia coli / Q000187:drug effects / Q000302:isolation & purification; D000431:Ethanol; D005516:Food Microbiology; D005517:Foodborne Diseases / Q000517:prevention & control; D006090:Gram-Negative Bacteria / Q000187:drug effects / Q000302:isolation & purification; D006094:Gram-Positive Bacteria / Q000187:drug effects / Q000302:isolation & purification; D008460:Meat / Q000382:microbiology*; D008462:Meat-Packing Industry / Q000379:methods*; D050296:Microbial Viability / Q000187:drug effects; D014677:Pharmaceutical Vehicles; D011897:Random Allocation; D012116:Resins, Plant / Q000494:pharmacology*; D055771:Serbia; D012867:Skin / Q000382:microbiology*
chemical_list: D000891:Anti-Infective Agents, Local; D014677:Pharmaceutical Vehicles; D012116:Resins, Plant; D000431:Ethanol; C003934:shellac