A5018383269- Mass Spectrometry Techniques and Applications
- Analytical Chemistry and Chromatography
- Identification and Quantification in Food
- Pesticide Residue Analysis and Safety
- Metabolomics and Mass Spectrometry Studies
- Insect and Pesticide Research
- Toxic Organic Pollutants Impact
- Fungal Plant Pathogen Control
- Advanced Chemical Sensor Technologies
- Garlic and Onion Studies
- Fermentation and Sensory Analysis
- Nephrotoxicity and Medicinal Plants
- Mycotoxins in Agriculture and Food
- Analytical chemistry methods development
- Edible Oils Quality and Analysis
- Meat and Animal Product Quality
- Insect-Plant Interactions and Control
- Food Quality and Safety Studies
- Tea Polyphenols and Effects
- Carcinogens and Genotoxicity Assessment
- 3D Modeling in Geospatial Applications
- Saffron Plant Research Studies
- Phytochemistry and Biological Activities
- Food Chemistry and Fat Analysis
- Plant Disease Resistance and Genetics
University of Chemistry and Technology, Prague
2010-2024
ORCID
2021
Institute of Chemical Technology
2014
A combination of direct analysis in real time (DART) ionization coupled to time-of-flight mass spectrometry (TOFMS) and chemometrics was used for animal fat (lard beef tallow) authentication. This novel instrumentation employed rapid profiling triacylglycerols (TAGs) polar compounds present samples their mixtures. Additionally, isolated from pork, beef, pork/beef admixtures analyzed. Mass spectral records were processed by principal component (PCA) stepwise linear discriminant (LDA)....
Abstract In the European Union, all chemical substances that are manufactured, imported or used in tonnages equal higher than one tonne per year must be registered under REACH regulation. This regulatory framework requires collection and dissemination of detailed information on properties, uses, potential health environmental impacts chemicals. However, some these chemicals may pose emerging risks food chain, necessitating development approaches to identify assess such risks. The SCREENER...
Two alternative, complementary analytical strategies were successfully used to identify the most common meat species—beef, pork and chicken—in products. The first innovative high-throughput approach was based on triacylglycerols fingerprinting by direct analysis in real time coupled with high-resolution mass spectrometry (DART–HRMS). second classic commonly DNA use of nuclear or mitochondrial multiplex polymerase chain reaction (mPCR). DART–HRMS method represents a rapid, high throughput...
Abstract Saffron is a unique spice obtained by drying stigmas of saffron flowers ( Crocus sativus L.). Due to its high price, economically motivated adulteration occurs relatively often. The presented study aimed develop an effective strategy for the detection following potential botanical adulterants used substitution or dilution: safflower Carthamus tinctorius L.), calendula Calendula officinalis L.) , turmeric Curcuma longa achiote Bixa orellana red pepper Capsicum spp.), mountain arnica...
The dynamics of pesticide residues in strawberries that involved quantification ripe fruits after model treatment was evaluated repeated field trials conducted over 3 years. Sixteen commercial formulations various combinations were employed applications from 7 to 44 days before harvest. Altogether 21 active ingredients and some their metabolites determined treated using LC-MS GC-MS methods. Except for propargite, the concentrations all declined below respective MRLs (Regulation (EC) No....
The objectives of this study were to assess concentrations three groups persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) in 44 fish oil-based food supplements, estimate their daily intake by consumers and, evaluate the compliance oil samples with origin declarations (cod liver or oil). ∑PCBs (7 congeners), OCPs (19 compounds, represented mainly ∑DDTs), ∑PBDEs (10 ∑PAHs (16 compounds) found ranged between 0.15-55.7 µg kg-1, 0.93-72.8 0.28-27.5 0.32-51.9...
Six onion cultivars Bingo, Dormo, Elenka, Elbrus, Spirit, and Sturon grown in the Czech Republic for commercial purposes were analysed to investigate content of health-promoting compounds. The results showed that at harvest time, cysteine sulfoxide varied from 32.38 44.16 g/kg dry weight, polyphenol was between 2.66 3.37 antioxidant activity ranged 0.75 0.83 g/kg. Cv. Bingo had highest level concurrently by DNA (microsatellite) markers. Dendrograms based on chemical composition analysis...