A5020842159- Listeria monocytogenes in Food Safety
- Microplastics and Plastic Pollution
- Salmonella and Campylobacter epidemiology
- Food Safety and Hygiene
- Microbial Inactivation Methods
- Identification and Quantification in Food
- Recycling and Waste Management Techniques
- Effects and risks of endocrine disrupting chemicals
- Essential Oils and Antimicrobial Activity
- Probiotics and Fermented Foods
- Pharmaceutical and Antibiotic Environmental Impacts
- Gut microbiota and health
- Molecular Biology Techniques and Applications
- Viral gastroenteritis research and epidemiology
- Biosensors and Analytical Detection
- Bacteriophages and microbial interactions
- Clostridium difficile and Clostridium perfringens research
- Ruminant Nutrition and Digestive Physiology
- Milk Quality and Mastitis in Dairy Cows
- Spectroscopy and Chemometric Analyses
- Environmental Toxicology and Ecotoxicology
- biodegradable polymer synthesis and properties
- Escherichia coli research studies
- Bacterial biofilms and quorum sensing
- Transition Metal Oxide Nanomaterials
Norwegian University of Science and Technology
2017-2025
University of Veterinary Medicine Vienna
2015-2024
Bruker (United States)
2016-2024
University Hospital Ulm
2024
Colorado State University
2024
University College London
2023
Austrian Competence Centre of Food Safety
2018-2022
Humboldt-Universität zu Berlin
2002-2022
Technical University of Darmstadt
2022
Medical University of Graz
2022
The accumulation of plastic litter in natural environments is a global issue. Concerns over potential negative impacts on the economy, wildlife, and human health provide strong incentives for improving sustainable use plastics. Despite many voices raised issue, we lack consensus how to define categorize debris. This evident microplastics, where inconsistent size classes are used materials be included under debate. While this inherent an emerging research field, ambiguous terminology results...
While the use of plastic materials has generated huge societal benefits, 'plastic age' comes with downsides: One issue emerging concern is accumulation plastics in aquatic environment. Here, so-called microplastics (MP), fragments smaller than 5 mm, are special because they can be ingested throughout food web more readily larger particles. Focusing on freshwater MP, we briefly review state science to identify gaps knowledge and deduce research needs.
The release of plastics into the environment has been identified as an important issue for some time. Recent publications have suggested that degradation plastic materials will result in nano-sized particles to environment. Nanoparticle tracking analysis was applied characterise formation nanoplastics during a polystyrene (PS) disposable coffee cup lid. results clearly show increase over After 56 days' exposure concentration PS sample 1.26 × 108 particles/ml (average size 224 nm) compared...
Food safety criteria for Listeria monocytogenes in ready-to-eat (RTE) foods have been applied from 2006 onwards (Commission Regulation (EC) 2073/2005). Still, human invasive listeriosis was reported to increase over the period 2009-2013 European Union and Economic Area (EU/EEA). Time series analysis 2008-2015 EU/EEA indicated an increasing trend of monthly notified incidence rate confirmed 75 age groups female group between 25 44 years old (probably related pregnancies). A conceptual model...
Microscopic plastic items (microplastics) are ubiquitously present in aquatic ecosystems. With decreasing size their availability and potential to accumulate throughout food webs increase. However, little is known on the uptake of microplastics by freshwater invertebrates. To address this, we exposed species with different feeding strategies 1, 10 90 µm fluorescent polystyrene spheres (3-3 000 particles mL-1). Additionally, investigated how developmental stages a co-exposure natural (e.g.,...
Food consumption is an important route of human exposure to endocrine-disrupting chemicals. So far, this has been demonstrated by modeling or analytical identification single substances in foodstuff (e.g., phthalates) and body fluids urine blood). Since the research field focused on few chemicals (and thus missing mixture effects), overall contamination edibles with xenohormones largely unknown. The aim study was assess integrated estrogenic burden bottled mineral water as model characterize...
Plastics are known sources of chemical exposure and few, prominent plastic-associated chemicals, such as bisphenol A phthalates, have been thoroughly studied. However, a comprehensive characterization the complex mixtures present in plastics is missing. In this study, we benchmark plastic consumer products, covering eight major polymer types, according to their toxicological signatures using vitro bioassays nontarget high-resolution mass spectrometry. Most (74%) 34 extracts contained...
Aquatic ecosystems are globally contaminated with microplastics (MP). However, comparative data on MP levels in freshwater systems is still scarce. Therefore, the aim of this study to quantify abundance water and sediment German river Elbe using visual, spectroscopic (Fourier-transform infrared spectroscopy) thermo analytical (pyrolysis gas chromatography mass spectrometry) methods. Samples from eleven sites along part were collected, both phase, order better understand sinks transport...
Plastics contain a complex mixture of known and unknown chemicals; some which can be toxic. Bioplastics plant-based materials are marketed as sustainable alternative to conventional plastics. However, little is with regard the chemicals they safety these compounds. Thus, we extracted 43 everyday bio-based and/or biodegradable products well their precursors, covering mostly food contact made nine material types, characterized extracts using in vitro bioassays non-target high-resolution mass...
Given the ubiquitous presence of microplastics in aquatic environments, an evaluation their toxicity is essential. Microplastics are a heterogeneous set materials that differ not only particle properties, like size and shape, but also chemical composition, including polymers, additives side products. Thus far, it remains unknown whether plastic chemicals or itself driving factor for microplastic toxicity. To address this question, we exposed Daphnia magna 21 days to irregular polyvinyl...
"Microplastic" is an umbrella term that covers many particle shapes, sizes, and polymer types, as such the physical chemical properties of environmental microplastics will differ from primary microbeads commonly used for ecotoxicity testing. In present article, we discuss are potentially relevant to their ecotoxicity, including size, shape, crystallinity, surface chemistry, additive composition. Overall, there a need structured approach testing different identify which most drivers...
Abstract Food packaging is of high societal value because it conserves and protects food, makes food transportable conveys information to consumers. It also relevant for marketing, which economic significance. Other types contact articles, such as storage containers, processing equipment filling lines, are important production supply. articles made up one or multiple different materials consist chemicals. However, chemicals transfer from all into and, consequently, taken by humans. Here we...
Despite the importance of gut microbiota for broiler performance and health little is known about composition this ecosystem, its development response towards bacterial infections. Therefore, current study was conducted to address structure microbial community in chickens a longitudinal from day 1 28 age content on mucosa. Additionally, consequences Campylobacter (C.) jejuni infection were assessed. The analyzed with 16S rRNA gene targeted Illumina MiSeq sequencing. Sequencing 130 samples...
Plastic products contain complex mixtures of extractable chemicals that can be toxic. However, humans and wildlife will only exposed to plastic are released under realistic conditions. Thus, we investigated the toxicological chemical profiles leaching into water from 24 everyday covering eight polymer types. We performed migration experiments over 10 days at 40 °C analyzed migrates using four in vitro bioassays nontarget high-resolution mass spectrometry (UPLC-QTOF-MSE). All induced baseline...
Previous research reported the translocation of nano- and microplastics from gastrointestinal tract to tissues in Daphnia magna, most prominently fluorescent polystyrene beads lipid droplets. For particles >300 nm, such transfer is biologically implausible as peritrophic membrane retains these daphnid gut. We used confocal laser scanning microscopy study tissue applying setup a previous (neonates exposed 20 1000 nm at 2 µg L-1 for 4 24 h), same with fructose-based clearing, 1000-fold higher...