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

Food Science and Technology (Campinas)

Laura Reyes Carranza²  Maria Salud Rubio Lozano²  Ruben Danilo Méndez Medina²  Maria Del Carmen Wacher Rodarte¹  Jose Fernando Núñez Espinosa¹  Bertha Lucila Velázquez Camacho¹  Renata Ernlund Freitas Macedo¹ 

[1],Universidad Nacional Autonoma de Mexico Facultad de Medicina Veterinaria y Zootecnia Laboratorio de Ciencia de la CarneDelegación Coyoacán DF ,México

关键词: bovine carcass;    acid treatment;    microbial load;   

DOI  :  10.1590/S0101-20612013005000065

来源: SciELO

【 摘 要 】

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/ cm²). 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<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.

【 授权许可】

CC BY   
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