Background: The spread of pathogenic microorganisms in food and beverage and their resistance to antibiotics have raised major concerns for public health. The aim of this study was to investigate the antimicrobial activity of various metal oxide nanoparticles (NPs) including zinc oxide (ZnO), magnesium oxide (MgO), and iron oxide (Fe2O3) NPs against Staphylococcus aureus (S. aureus) and Esch...

MILLIONS of dry tons of biosolids are produced every year. Recycling of them and the safety of disposal is an issue at the center of a national debate. Due to the nutrient content of biosolids, they can be reused beneficially as a soil amendment on numerous areas, such as parks, forests, and agricultural land [41]. Biosolids can also be sold in bulk to consumers for use on home gardens or lawns...

Due to the difficulties in testing for specific pathogens, water samples are tested for the presence of nonpathogenic indicator organisms to determine whether a water supply has been contaminated by fecal material. An implicit assumption in this approach is that where pathogenic microorganisms are present fecal indicator organisms are present as well; yet surprisingly few studies have been cond...

Streptococcus macedonicus ACA-DC 198, a strain isolated from Greek Kasseri cheese, produces a food-grade lantibiotic named macedocin. Macedocin has a molecular mass of 2,794.76 +/- 0.42 Da, as determined by electrospray mass spectrometry. Partial N-terminal sequence analysis revealed 22 amino acid residues that correspond with the amino acid sequence of the lantibiotics SA-FF22 and SA-M49, both...

Milk may represent an important source of infectious agents to hospitalized pediatric patients. To describe the bacterial microflora isolated from the hands, stools, pharynx of all workers at milk kitchens in pediatric hospitals in the city of Salvador, Brazil, as well as in the formulas prepared by them, we carried out this cross-sectional study with all 91 workers from the 20 milk kitchens of...

Antibiotics or antimicrobials are a group of compounds, both natural, semi-synthetic and synthetic, which have the property killing inhibiting growth bacteria. The infection studied in this research is skin caused by bacterium Propionibacterium acnes. Several studies examined bioactivity potential palm plant parts such as toxicity fruit seeds to Artemia salina larvae. but there no data regardin...