Total and faecal coliforms in iceberg lettuce from markets H. Caborca, Sonora
Coliformes totales y fecales en lechuga iceberg de mercados de H. Caborca, Sonora
Autor
Enciso Martínez , Yessica
Acosta Pimienta , Fabiola
Ortega García, Jesús
De la Rosa López , Rafael
Valencia Rivera , Dora Edith
Institución
Resumen
Foodborne diseases are a worldwide problem. The green leafy vegetables that are consumed mainly raw, are one of the main vehicles for the transmission of human pathogens. Among them is iceberg lettuce, which has increased its demand for consumption due to the healthier lifestyles that have been promoted in recent years. The aim of this study was to determine the level of total and fecal coliforms in iceberg lettuce obtained randomly and issued in different markets in the city of H. Caborca, Sonora. The processing, isolation and bacterial identification were carried out in accordance with NOM-210-SSA1-2014. 40% of the samples presented total and fecal coliforms that exceeded the permitted levels according to the Official Mexican Standard in vegetables. The study revealed a high level of fecal contamination, this could be due to poor handling of iceberg lettuce and the need for stricter sanitary measures to ensure the safety of this type of food. Las enfermedades transmitidas por alimentos son un problema a nivel mundial. Las hortalizas de hoja verde que se consumen principalmente crudas, son uno de los vehículos principales para la transmisión de patógenos humanos. Dentro de ellas se encuentra la lechuga iceberg, que ha aumentado su demanda para consumo debido a los estilos de vida más saludables que se han promovido en los últimos años. El objetivo del estudio fue determinar el nivel de coliformes totales y fecales en lechuga iceberg, obtenidas de manera aleatoria y expedidas en diferentes mercados de la ciudad de H. Caborca, Sonora. El procesamiento, aislamiento e identificación bacteriana se realizó de acuerdo a la NOM-210- SSA1-2014. El 40% de las muestras presentaron coliformes totales y fecales que sobrepasaron los niveles permitidos según la Norma Oficial Mexicana en hortalizas. El estudio reveló un alto nivel de contaminación fecal, esto podría deberse a una mala manipulación de la lechuga iceberg y la necesidad de medidas sanitarias más estrictas para asegurar la inocuidad de este tipo de alimentos.
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