Utilización de ácido láctico como desinfectante en canales bovinos

Abstract

In the Piggis Pigem Cia.Ltda sausage Factory, located in the Azuay Province, Cuenca Canton, lactic acid as a disinfectant in bovine carcasses was used during different times of action, with four replicates per treatment, under a completely randomized design. The size of the experimental unit was five cases per repetition, different times influenced statistically (P<0,01) in the microbial population reduction obtaining 0.33 logarithm UFC/cm (Colony Forming Units per square centimeter) for mesophyll aerobic, 1,12 logarithm UFC/cm (Colony Forming Units per square centimeter) in total coliforms and 1.89 logarithm UFC/cm² (Colony Forming Units per square centimeter) in fecal coliforms, the aerobic microorganisms were significantly reduced to 831,73 UFC/cm? (Colony Forming Units per square centimeter) when lactic acid was applied for 15 minutes, total coliforms at 45 minutes application of lactic acid its microbial population is reduced to 10,23 UFC/cm(Colony Forming Units per square centimeter), fecal coliforms valúes down to 6.92 UFC/cm? (Colony Forming Units per square centimeter) in the 45 minutes application treatment. The physicochemical titration reports pH optimum values 5,76 approaching an ideal pH which contributes with the bovine carcass conservation. When applying the sprinkiing with a solution of o, 5% lactic acid of the carcass, the cost by sprinkling to each carcass is increased by 11 cents, is recommended to use the solution of lactic acid as a disinfectant in one liter amounts per carcass, which proves the effectiveness of the lactic acid as disinfectant decreasing the bacterial burden bovine carcasses.