Producción Científica Profesorado

Survival of foodborne bacteria on strawberries and antibacterial activities of Hibiscus sabdariffa extracts and chemical sanitizers on strawberries



Castro Rosas, Javier

2018

Gómez-Aldapa, C.A., Portillo-Torres, L.A., Villagómez-Ibarra, J.R., Rangel-Vargas, E., Téllez-Jurado, A., Cruz-Gálvez, A.M., Castro-Rosas, J., Journal of Food Safety, (2018), 38. DOI: 10.1111/jfs.12378


Abstract


The potential of 13 foodborne bacteria to attach and survival on strawberries and the antimicrobial activities of Hibiscus sabdariffa calyx extracts and chemical sanitizers against foodborne bacteria on strawberries were investigated. Strawberries were inoculated with thirteen foodborne bacteria: Listeria monocytogenes, Shigella flexneri, Staphylococcus aureus, Salmonella Typhimurium, S. Typhi, S. Montevideo, Vibrio cholerae O1, and six pathotypes of Escherichia coli: O157:H7, Non-O157:H7-Shiga toxin-producing, enteropathogenic, enterotoxigenic, enteroinvasive, and enteroaggregative. The antibacterial effects of four roselle calyx extracts (in water, methanol, acetone, and ethyl acetate), sodium hypochlorite, colloidal silver, and acetic acid against all pathogenic bacteria were evaluated on contaminated strawberries. All foodborne bacteria attached and survived on strawberries at least 15 days. Acetonic and methanolic roselle calyx extracts caused a greater reduction in the concentration (until 3.8-log10 reduction in some cases) of all foodborne bacteria than the sodium hypochlorite, colloidal silver and acetic acid on contaminated strawberries. Practical applications: The strawberry is an important crop in United States, Spain, and Mexico. However, fresh strawberries have been associated with foodborne disease caused by E. coli O157:H7 and Salmonella. There is little information about the attachment and survival of foodborne bacteria on strawberries. A number of studies have shown that chemical agents used to eliminate pathogenic bacteria on fruits have a limited antimicrobial effect. Roselle calyx extracts are reported to have an antimicrobial effect. This study provides information about the attachment and survival of different foodborne bacteria on strawberries and information on the significant impact of dry roselle calyx extracts may be potentially useful in disinfection procedures of strawberries.



Producto de Investigación




Artículos relacionados

APLICACIÓN DE SALES DE ACIDOS ORGÁNICOS EN LA CONSERVACIÓN DE CARNE DE CONEJO.

Optimization of thermal protein precipitation from acid whey

The role of foods in Salmonella infections. In: Salmonella - A Dangerous Foodborne Pathogen

Behavior of Salmonella Typhimurium, Staphylococcus aureus, Listeria monocytogenes, and Shigella flex...

Condiciones microbiológicas en el proceso de sacrificio en un rastro municipal del estado de Hidalgo

An in situ method to study the reaction catalyzed by alkaline phosphatase on DNP

Survival of Brucella abortus in milk fermented with a yoghurt starter culture

Degradación anaerobia de dos tipos de lactosuero en reactores UASB

SIMULACIÓN MATEMÁTICA DE UN DIGESTOR ANAEROBIO TIPO TANQUE AGITADO PARA EL TRATAMIENTO DE VERTIDOS R...

COLORANT EXTRACTION FROM RED PRICKLY PEAR (OPUNTIA LASIACANTHA) FOR FOOD APPLICATION