Evaluación antimicrobiana del extracto etanólico de llanten (Plantago major) aplicado en canales de pollo

Abstract

The present research aims to evaluate the antimicrobial effect of broadleaf plantain (Plantago major) extract applied to chicken carcasses. An experimental design of four treatments and three replicates versus a control treatment was used. Different concentrations of the ethanolic extract of broadleaf plantain (200, 400, 600, and 800 mg/ml) were used, respectively. The broadleaf plantain was macerated in 96% alcohol for 4 to 5 days with simple distillation. Using a rotary evaporator at 88 RPM (revolutions per minute), the chlorophyll was eliminated so that at the time of application, the color would not change. The broadleaf plantain extract was applied by spraying on the chicken carcasses. To check the antimicrobial effect, the shelf life of 0, 7, 14, and 21 days after application was determined. Microbiological analyses showed the presence of Salmonella, Escherichia coli, Staphylococcus aureus, and mesophilic aerobes, which could be because there was not an adequate process in the slaughtering, transport, and/or temperatures, causing cross-contamination in the chicken carcasses. However, using broadleaf plantain extract showed microbial growth that is not harmful and is acceptable according to INEN Standards 2346 and 1529.