Acetic acid as an intervention strategy to decontaminate beef carcasses in mexican commercial slaughterhouse

作者：Carranza Laura Reyes; Rubio Lozano Maria Salud; Mendez Medina Ruben Danilo; Wacher Rodarte Maria del Carmen; Nunez Espinosa Jose Fernando; Velazquez Camacho Bertha Lucila; Freitas Macedo Renata Ernlund

来源：Ciencia e Tecnologia de Alimentos, 2013, 33(3): 446-450.

DOI：10.1590/S0101-20612013005000065

• bovine carcass
• acid treatment
• microbial load

Beef can be contaminated during the slaughter process, thus other methods, besides the traditional water washing, must be adopted to preserve meat safety. The objective of this study was to evaluate the effect of 2% acetic acid interventions on the reduction of indicator bacteria on beef carcasses at a commercial slaughterhouse in Mexico. Reduction was measured by the count of mesophilic aerobic bacteria (TPC), total coliform (TC), and fecal coliform (FC) (log CFU/cm(2)). Among the different interventions tested, treatments combining acetic acid solution sprayed following carcass water washing had greater microbial reduction level. Acetic acid solution sprayed at low pressure and longer time (10-30 psi/60 s) reached higher TPC, TC, and FC reductions than that obtained under high pressure/shorter time (1,700 psi/15 s; P%26lt;0.05). Exposure time significantly affected microbial reduction on carcasses. Acetic acid solution sprayed after carcass washing can be successfully used to control sources of indicator bacteria on beef carcasses under commercial conditions.

• 出版日期2013-9