Carbon source utilization‐based metabolic activity of Salmonella Oranienburg and Salmonella Saintpaul in river water |
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Authors: | José Andrés Medrano‐Félix Nohelia Castro‐del Campo Felipe de Jesús Peraza Garay Célida Isabel Martínez‐Rodríguez Cristóbal Chaidez |
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Affiliation: | 1. CONACYT‐Centro de Investigación en Alimentación y Desarrollo A.C., Laboratorio Nacional para la Investigación en Inocuidad Alimentaria, Laboratorio de Microbiología Ambiental y de Alimentos, Culiacán, Sinaloa, México;2. Centro de Investigación en Alimentación y Desarrollo A.C., Laboratorio Nacional para la Investigación en Inocuidad Alimentaria, Laboratorio de Microbiología Ambiental y de Alimentos, Culiacán, Sinaloa, México;3. Universidad Autónoma de Sinaloa, Centro de Investigación y Docencia en Ciencias de la Salud., Estadística, Culiacán, Sinaloa, México |
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Abstract: | The presence of introduced or non‐native bacteria in river water can create a selective pressure due to their ability to overcome fluctuations in physicochemical conditions and carbon source availability. The carbon source concentrations (monosaccharides and polysaccharides), physicochemical parameters (turbidity, total dissolved solids, biochemical oxygen demand, temperature and pH) and metabolic activity of Salmonella Oranienburg and Saintpaul were determined in water from the central Sinaloa state rivers. This study's results revealed that the carbohydrate availability and physicochemical conditions of river water make it a suitable niche for the establishment of Salmonella serotypes. Metabolic profiles showed that Salmonella Typhimurium could consume a wide variety of carbon sources but only at moderate levels; in contrast, Salmonella Oranienburg and Salmonella Saintpaul demonstrated intense carbon source utilization of a limited diversity of carbon sources. Carbohydrates, amino acids and carboxylic acids were the metabolites most utilized by the environmental Salmonella strains, demonstrating their superior ability to adapt to and survive in river water. |
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Keywords: | metabolic activity river water Salmonella |
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