J Food Prot 2021 Jul 29. Epub 2021 Jul 29.
Universidad Autonoma del Estado de Hidalgo Professor Carretera Pachuca-Tulancingo Km. 4.5, Ciudad del Conocimiento, Universidad Autón Carboneras MEXICO Mineral de la Reforma, Hidalgo, México Hidalgo 42184.
The objectives of this investigation were a) to isolate bacteria from different foods (dairy products, fruits, and vegetables) and evaluate their probiotic potential and b) to select, identify, and characterize the strain with the highest probiotic potential. From 14 food samples, a total of 117 strains were isolated; however, only 42 (T1 to T42) showed the morphology (gram-positive, coco, and bacillar form) and were catalase- and oxidase-negative to be considered as a presumptive lactic acid bacteria (LAB). The antagonistic activity of the 42 strains was evaluated on Escherichia coli (O157:H7E09), Listeria monocytogenes (ATCC 19115), Staphylococcus aureus (ATCC 25923), and Salmonella enterica serotype Typhimurium (ATCC 14028). Read More