Research Publications (Food Safety)

Staphylococcus aureus is a pathogenic microorganism of humans and animals, able to cause foodborne intoxication due to the production of staphylococcal enterotoxins (SEs) and to resist antibiotic treatment as in the case of methicillin-resistant S. aureus (MRSA). In this study, we performed a genomic characterisation of 12 genetically diverse S. aureus strains isolated from ready-to-eat foods in Algiers (Algeria).

This study was concerned with the green synthesis of gold nanoflowers (AuNFs) using the bioactive constituents of Rosmarinus officinalis (rosemary) and Helichrysum italicum (immortelle) extracts, as reducer and stabilizer agents along with the determination of their antibacterial and antibiofilm activity against E. coli, S. aureus, and S. epidermidis. The AuNFs were characterized using STEM, UV–Vis, DLS, ZETA, FESEM-EDX, and FTIR techniques.

Salmonella is considered to be one of the major foodborne pathogens associated with the consumption of contaminated poultry meat products. To the best of our knowledge this is the first extended research performed on a number of Salmonella strains isolated during 2011–2021 from poultry meat products in Romania.

Since the discovery of antibiotics in the 20th century, they have been used to fight against infections. The overuse of antibiotics in the wider environment has resulted in the emergence of multidrug-resistant bacteria. In developing countries such as China and developed countries such as the USA, there is evidence of the high pervasiveness of antibiotic-resistant infections.

Having scarce information about ultrasound assisted extraction (UAE) and microwave assisted extraction (MAE) of white horehound (Marrubium vulgare L.), the idea has emerged to determine the optimal process parameters for the maximization of polyphenols and to compare the efficiency of these green extraction technologies.

The thermal behavior of mopane worms (Imbrasia belina), roasted peanuts (Arachis hypogaea L.), and sweet corn (Zea mays L. saccharata) was investigated under inert conditions using the TGA-FTIR analytical technique heated from 64 to 844°C at a heating rate of 20°C/min.

by Durre Shahwar, Mohammad Yunus Khalil Ansari, Younghoon Park Lens culinaris is a proteinaceous food crop that is consumed worldwide for protein requirements. Mutation breeding has been used to improve protein content, yield, and related traits, as well as to select highly desirable mutants that are economically significant.

A silico-aluminophosphate geopolymer (APG) binder was developed for Pb2+ solidification/stabilization (S/S) treatment in our previous study, but the related performance of the APG stabilized Pb2+ contaminated soil was not investigated.

Plant productivity is being seriously compromised by climate-change-induced temperature extremities. Agriculture and food safety are threatened due to global warming, and in many cases the negative impacts have already begun. Heat stress leads to significant losses in yield due to changes in growth pattern, plant phonologies, sensitivity to pests, flowering, grain filling, maturity period shrinkage, and senescence. Tomato is the second most important vegetable crop.

Antimicrobial peptides (AMPs) are ancient antimicrobial weapons used by multicellular organisms as components of their innate immune defenses. Because of the antibiotic crisis, AMPs have also become candidates for developing new drugs. Here, we show that five different AMPs of different classes are effective against non-dividing Escherichia coli and Staphylococcus aureus.

We analysed the dynamics of Fusarium spp. and mycotoxin contamination in Swedish cereals during 2004–2018. More than 1400 cereal samples from field trials were included, collected in a monitoring programme run by the Swedish Board of Agriculture. Five Fusarium mycotoxins were quantified with LC-MS/MS and fungal DNA from four species was quantified using quantitative real-time PCR.

Foodborne illnesses are being reported everyday; thus, there is an obvious need for faster and sensitive methodologies to detect foodborne pathogens in order to assure the safeness of foods. In the present study, the detection of L. monocytogenes, Salmonella spp., and E. coli O157 was performed combining a multiplex short enrichment of 7 h in Tryptic Soy Broth, with a colorimetric LAMP-based naked-eye detection.

Cadmium (Cd) is a potential carcinogen and can easily trigger human renal and hepatic dysfunction. Ingestion of Cd-contaminated food is considered the principal way of human exposure to Cd. Bioavailability evaluation has been utilized to assess human health risk, while the correlation of the in cellulo and in vivo Cd bioavailability in foods is not clear.

Exopolysaccharides (EPSs) can be used as effective exogenous substances to alleviate the toxic effect of cadmium (Cd) on rice and other crops, thus improving plant growth characteristics under stress conditions, and reducing the accumulation of Cd in grains, but the underlying mechanism is still unclear.

Hesperetin glucosides such as hesperidin and hesperetin-7-glucoside are abundantly present in citrus fruits and have various pharmacological properties. However, the potential toxicity of hesperetin glucosides remains unclear. An initial assessment of the safety of hesperetin-7-glucoside–β-cyclodextrin inclusion complex (HPTGCD) as a functional food ingredient was undertaken to assess toxicity and mutagenic potential.

Background Diarrhea is still the most common and economically most significant disease of newborn calves. Objective Analysis of the development of selected bacterial groups in the feces of neonatal calves and its significance regarding diarrhea. Animals A total of 150 newborn Simmental calves reared in 13 Bavarian farms were included in the study. Methods Fecal samples of calves taken at 0/6/12/24/48/72/168 hours

Vibrio parahaemolyticus is a halophilic foodborne pathogen majorly isolated from seafood, threatening public health worldwide. However, our recent study reported the presence of this bacterium in freshwater crayfish, which were rarely identified and investigated.

This study aimed to investigate the effect of different concentrations of Staphylococcus (S.) xylosus protease on the proteolysis, quality characteristics, flavor development, and sensory attributes of dry sausages. The results indicated that S. xylosus protease significantly decreased (P < 0.05) the moisture content, water activity, shear force, pH value, lipid and protein oxidation of the dry sausages.

This study aimed to determine the frequency and characterization of Salmonella isolates from food-producing animals and human diarrheal samples in Shiraz, Iran. Overall, 105 Salmonella isolates were obtained from chicken meat (70/100, 70.0%), beef (19/100, 19.0%), lamb (11/100, 11.0%), and human stool (5/295, 1.7%). S. Infantis (40.9%), S. Enteritidis (29.5%), and S.

Bensulfuron methyl (BSM) is a widely used sulfonylurea herbicide in agriculture. However, the large-scale BSM application causes severe environmental problems. Biodegradation is an important way to remove BSM residue. In this study, an endophytic bacterium strain CD3, newly isolated from barnyard grass (Echinochloa crus-galli), could effectively degrade BSM in mineral salt medium. The strain CD3 was identified as Proteus sp.

Escherichia coli is considered an opportunistic pathogen and an indicator for antimicrobial resistance (AMR) monitoring. Despite many reports on its AMR monitoring, studies based on genome-based analysis of AMR genes are still insufficient. Here, 181 E. coli strains were isolated from anal swab samples collected from pigs and chickens of animal farms located in Eastern China and sequenced through the Illumina platform. The results showed that 87.85% (159/181) of the E.

Environmental Microbiology, Accepted Article. Physiological and gene expression studies of deep-sea bacteria under pressure conditions similar to those experienced in their natural habitat are critical for understanding growth kinetics and metabolic adaptations to in situ conditions. The Campylobacterium (aka Epsilonproteobacterium) Nautilia sp.

Corn is the second most plentiful cereal grown for human consumption. Corn has several pests and diseases and various kind of pesticides are used for controlling these, and reducing their damage.

The characterization of bioactive metabolites and the protective effects against Cadmium (Cd) of the hydroalcoholic extract from Allium cepa var. Tropea (Tropea red onion) in human Caco-2 colon adenocarcinoma cells and in vitro antioxidant effects were investigated. Tropea red onion extract showed high levels of bioactive compounds and a strong activity as radical scavenger and inhibitor of lipid peroxidation.

The adaptive response of bacterial cells to changing environmental conditions depends on the behavior of single cells within the population. Exposure of Listeria monocytogenes to sublethal acidic conditions in foods or in the gastrointestinal track of the host may induce injuries relevant to difficult physiological states within the dormancy continuum.