Research Publications (Food Safety)

Author(s): Nedjma Lounes, Falk Melzer, Ashraf E. Sayour, Hassiba Tali Maamar, Kheira Rahal, Nabila Benamrouche, Malika Lazri, Abdallah Bouyoucef, Ashraf Hendam, Heinrich Neubauer, Hosny El Adawy

Author(s): Niels Demaître, Koen De Reu, Annelies Haegeman, Dries Schaumont, Lieven De Zutter, Annemie Geeraerd, Geertrui Rasschaert

Author(s): Sangha Han, Ji yeon Jo, Sa Reum Park, Changsun Choi, Sang-Do Ha

It is commonly known that the widespread use of antibiotics has led to their existence in food products as residues and ingestion of these food products may create a selection pressure on bacteria inhabiting the human body.

Mycotoxin contamination in animal milk is an emerging concern around the globe. Here we developed and validated an ultrahigh-performance liquid chromatography and mass spectrometry-selected reaction monitoring (UHPLC/MS-SRM) method to quantify low concentrations of aflatoxins (AFs) and ochratoxins (OTs) in routinely consumed animal milk samples collected from southern India.

The Duyen Hai Seaport covering more than 427 hectares of water surface is part of a Duyen Hai thermal power plant complex. In the last years, port operations can lead to impact on air, water, land, and the ecosystem. To evaluate the ecological risk caused by heavy metals at the Duyen Hai Seaport, 17 surficial sediment samples were collected along the ship flow from shoreline to the material submerged zone in April 2019.

Abstract

Aims

Residues of antibiotics such as oxytetracycline (OTC) in soil can affect microbial compositions and activities, thus affecting soil P availability, and consequently plant P uptake and growth.

Botulinum neurotoxin type A (BoNT/A) injections have to be administered repeatedly to achieve a rather stable, high level of improvement.

The misuse and overuse of antibiotics have resulted in an alarmingly high prevalence of antimicrobial resistance (AMR) in human and animal bacteria. European monitoring programmes show that AMR occurrence in food animals is lower in Sweden than in most other EU Member States and that the use of antibiotics for animals is among the lowest in Europe. In this retrospective country case study, we analysed published documents to identify factors contributing to this favourable situation.

Poultry meat and eggs are vital sources of protein for human consumption worldwide. The use of several nutritional and medicinal products, including antibiotics, is crucial for efficient and safe poultry production. Accumulation of drug residues in meat and eggs from inappropriate drug use is a major concern to public health. Recently, enrofloxacin was detected (2.4–3.8 ppb) in edible eggs produced in Jeju Island, Korea.

A novel hexagonal boron nitride modified reduced graphene oxide material was synthesized and used as the adsorbent for the solid‐phase microextraction of seven polycyclic aromatic hydrocarbons from water and soil samples prior to their detection by gas chromatography‐flame ionization detector. Under optimal conditions, the linear response range of the analytes for water sample is 0.25‐50 ng mL−1 with the correlation coefficients (r) ranging between 0.9953 and 0.9996.

Infection with H5N6 highly pathogenic avian influenza virus caused high mortality in chickens, while ducks often appear to be asymptomatic. But, some recent H5Nx subtype viruses could cause high mortality in ducks. The variation between different species and the mechanisms by which some H5Nx viruses cause death in ducks requires investigation to identify the key processes in influenza susceptibility and pathogenesis.

Listeria monocytogenes is one of the major food-related pathogens and is able to survive and multiply under different stress conditions. Its persistence in industrial premises and foods is partially due to its ability to form biofilm. Thus, as a natural strategy to overcome L. monocytogenes biofilm formation, the treatment with lactocin AL705 using a sublethal dose (20AU/ml) was explored. The effect of the presence of the bacteriocin on the biofilm formation at 10°C of L.

Campylobacter species are Gram-negative, motile, and non–spore-forming bacteria with a unique helical shape that changes to filamentous or coccoid as an adaptive response to environmental stresses. The relatively small genome (1.6 Mbp) of Campylobacter with unique cellular and molecular physiology is only understood to a limited extent.

Regulatory agencies have derived noncancer toxicity values for 2,3,7,8-tetrachlorodibenzo-p-dioxin based on reduced sperm counts relying on single studies from a large body of evidence. Techniques such as meta-regression allow for greater use of the available data while simultaneously providing important information regarding the uncertainty associated with the underlying evidence base when conducting risk assessments.

Background Antibiotics designed to decolonize carriers of drug-resistant organisms could offer substantial population health benefits, particularly if they can help avert outbreaks by interrupting person-to-person transmission chains. However, cost effectiveness of an antibiotic is typically evaluated only according to its benefits to recipients, which can be difficult to demonstrate for carriers of an organism that may not pose an immediate health threat to the carrier.

Background Environmental contamination is an important source of hospital multidrug-resistant organism (MDRO) transmission. Factors such as patient MDRO contact precautions (CP) status, patient proximity to surfaces, and unit type likely influence MDRO contamination and bacterial bioburden levels on patient room surfaces.

Background The 2019 American Thoracic Society/Infectious Diseases Society of America guidelines for community-acquired pneumonia (CAP) revised recommendations for culturing and empiric broad-spectrum antibiotics. We simulated guideline adoption in Veterans Affairs (VA) inpatients.

Author(s): Sara Martillanes, Javier Rocha-Pimienta, Jaime Llera-Oyola, María Victoria Gil, María Concepción Ayuso-Yuste, Jesús García-Parra, Jonathan Delgado-Adámez

Author(s): Seyedeh Faezeh Taghizadeh, Ramin Rezaee, Majid Azizi, A. Wallace Hayes, John P. Giesy, Gholamreza Karimi

Author(s): Ivana Mirkov, Aleksandra Popov Aleksandrov, Marina Ninkov, Dina Tucovic, Jelena Kulas, Milica Zeljkovic, Dusanka Popovic, Milena Kataranovski

Author(s): Anand Kumar Chaudhari, Vipin Kumar Singh, Somenath Das, Nawal Kishore Dubey

Author(s): Roger Junges da Costa, Andresa Pereira da Silva, Renata Nobre da Fonseca, Silvia de Oliveira Hübner, Elen Silveira Nalério, Juliana de Lima Marques, Helena Reissig Soares Vitola, Wladimir Padilha da Silva, Eduarda Hallal Duval, Ângela Maria Fiorentini

Fresh produce-borne enteric bacterial pathogens with resistance to antibiotics have posed serious challenges to food safety and public health worldwide.  This study examined the antibiotic resistance profile of Salmonella enterica (n=33), previously isolated from exotic and indigenous leafy green vegetable samples (n=328) collected from 50 vegetable farms in 12 farming areas and 37 vegetable sellers in 4 market centers in Accra, Ghana during the period of March 2016 to March 2017, and de

Listeria monocytogenes (L. monocytogenes) is a persistent public health concern in the United States and is the third leading cause of death from foodborne illness. Cross-contamination of L. monocytogenes is common in delis (between contaminated and uncontaminated equipment, food and hands) and likely plays a role in the associated with retail deli meats. In 2012, EHS-Net conducted a study to describe deli characteristics related to cross-contamination with L. monocytogenes.