Chemical Characterization, Cell-Based Safety, and Antioxidant Assessments of Lactobacillus helveticus Postbiotics and Their Potential Antibacterial Effects and Mode of Action Against Food-Borne Multidrug-Resistant Staphylococcus aureus and Enterohaemorrhagic Escherichia coli O157:H7

Chemical Characterization, Cell-Based Safety, and Antioxidant Assessments of Lactobacillus helveticus Postbiotics and Their Potential Antibacterial Effects and Mode of Action Against Food-Borne Multidrug-Resistant Staphylococcus aureus and Enterohaemorrhagic Escherichia coli O157:H7