Foodborne pathogens are known to adhere strongly surfaces and can form biofilms in food processing facilities; therefore, their potential contaminate manufactured foods underscores the importance of sanitation. The objectives this study were (1) examine efficacy a new-generation sanitizer (Decon7) on Staphylococcus Pseudomonas biofilms, (2) identify biofilm bacteria from workers’ boots relation...

Tailings are mine wastes in the form of slurries stacked in mine sites abandoned after the exhaustion of ores. There are approximately 5000 abandoned mine sites in Korea, and tailings have become a serious environmental problem. Long-term environmental exposure of tailings can cause release of acidic and high concentrations of sulfate- and metal-contaminated water (acid mine drainage, AMD). Org...

Animals integrate physiological and environmental signals to modulate their food uptake. The nematode C. elegans, whose food uptake consists of pumping bacteria from the environment into the gut, provides excellent opportunities for discovering principles of conserved regulatory mechanisms. Here we show that worms implement a graded feeding response to the concentration of environmental bacteri...

Biofilms are a common cause of food contamination with undesirable bacteria, such as pathogenic bacteria. Staphylococcus aureus is one of the major bacteria causing food-borne diseases in humans. A study designed to determine the presence of S. aureus on food contact surfaces in dairy, meat, and seafood environments and to identify coexisting microbiota has therefore been carried out. A total o...

In the food industry, contamination by spoilage microorganisms results in severe safety and economic problems. In the sake-brewing process, spoilaging phenomena caused by several Lactobacillus species, so-called hiochi bacteria, seriously deteriorate the quality of sake, such as lowering the pH, increasing turbidity, and producing offflavors [1,2]. Sake with an ethanol concentration greater tha...

Histamine poisoning is caused by the ingestion of food containing high levels of histamine, a biogenic amine. Histamine could be expected in virtually all foods that contain proteins or free histidine and that are subject to conditions enabling microbial activity. In most histamine-containing foods the majority of the histamine is generated by decarboxylation of the histidine through histidine ...

Bacteria serve as live food and nutrients for bacterial-feeding nematodes (BFNs) in soils, and influence nematodes behavior and physiology through their metabolism. Five bacterial taxa (Bacillus amyloliquefaciens JX1, Variovorax sp. JX14, Bacillus megaterium JX15, Pseudomonas fluorescens Y1 and Escherichia coli OP50) and the typical BFN Caenorhabditis elegans were selected to study the effects ...

Consumption of contaminated seafoods is a major cause of death and hospitalization particularly in poor and developing countries. As with other food types, seafoods are also not free of food-borne pathogens and several risk factors are associated with its consumption. Regarding seafoods, there are regulatory hygienic alerts in importing countries. This paper briefly reviews the occurrence of se...

objectives in this study, the effect of coating glass and steel surfaces by copper nanoparticles (cunps) in inhibiting the biofilm formation by listeria monocytogenes and pseudomonas aeruginosa was examined. materials and methods the minimal inhibitory concentrations (mics) of synthesized cunps were measured against l. monocytogenes and p. aeruginosa by using the broth-dilution method. the cell...