Airborne survival and stress response in Listeria monocytogenes across different growth temperatures.

In the food industry, ensuring food safety during transportation and storage is vital, with temperature regulation preventing spoilage. However, airborne contamination through foodborne pathogens remains a concern. Listeria monocytogenes, a psychrotolerant foodborne pathogen, has been linked to various foodborne outbreaks.

Bacterial composition of refrigerators in households and inactivation of airborne Staphylococcus aureus using a TiO-UVLED module in a 512 L aerobiology chamber.

This study aimed to investigate the microbiota in the air and on the surface of a refrigerator and to inactivate aerosolized Staphylococcus aureus using a TiO-UVLED module. A total of 100 L of the air and 5000 cm surfaces in seven household refrigerators were collected using an air sampler and a swab, respectively. Samples were subjected to microbiota analysis as well as quantitative analyses of aerobic or anaerobic bacteria.

TiO-based photocatalyst Generated Reactive Oxygen Species cause cell membrane disruption of Staphylococcus aureus and Escherichia coli O157:H7.

Photocatalysts, including titanium dioxide (TiO), have attracted much attention in food safety for controlling foodborne pathogens. However, the study of the photocatalytic activity on various food-surrounding media and the factors that affect the efficacy of photocatalytic inactivation is incomplete. In this study, to inactivate foodborne pathogens in food-surrounding environments, TiO-based photocatalysts with ultraviolet A (UVA, 365 nm) and visible light (VIS, 405 nm) were employed.