Browsing QANB-Artigos by Title
Now showing items 53-72 of 254
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Dairy By-Products: A Review on the Valorization of Whey and Second Cheese Whey
(MDPI, 2021)The search for new food products that promote consumers health has always been of great interest. The dairy industry is perhaps the best example regarding the emergence of new products with claimed health benefits. Cheese ... -
Design of a molecularly imprinted stir-bar for isolation of patulin in apple and LC-MS/MS detection
(MDPI, 2017)Mycotoxins are a very diverse group of natural products produced as secondary metabolites by fungi. Patulin is produced by mold species normally related to vegetable-based products and fruit, mainly apple. Its ingestion ... -
Detection of food spoilage and pathogenic bacteria based on ligation detection reaction coupled to flow-through hybridization on membranes
(Hindawi, 2014)Traditional culturing methods are still commonly applied for bacterial identification in the food control sector, despite being time and labor intensive. Microarray technologies represent an interesting alternative. However, ... -
Determination of 18 organophosphorus flame retardants/plasticizers in mussel samples by matrix solid-phase dispersion combined to liquid chromatography-tandem mass spectrometry
(Elsevier, 2019-10-12)This study presents the development and validation of a new analytical method based on matrix solid-phase dispersion (MSPD), integrating sample extraction and clean-up in one single step, followed by liquid chromatography-tandem ... -
Determination of florfenicol, thiamfenicol and chloramfenicol at trace levels in animal feed by HPLC–MS/MS
(MDPI, 2019)Administration of florfenicol and thiamfenicol through medicated feed is permitted within the European Union, always following veterinary prescription and respecting the withdrawal periods. However, the presence of low ... -
Determination of Gonyautoxin-4 in Echinoderms and Gastropod Matrices by Conversion to Neosaxitoxin Using 2-Mercaptoethanol and Post-Column Oxidation Liquid Chromatography with Fluorescence Detection
(MDPI, 2015-12-30)Paralytic Shellfish Toxin blooms are common worldwide, which makes their monitoring crucial in the prevention of poisoning incidents. These toxins can be monitored by a variety of techniques, including mouse bioassay, ... -
Determination of human metabolites of chlorinated phosphorous flame retardants in wastewater by N-tert-butyldimethylsilyl-N-methyltrifluoroacetamide-derivatization and gas chromatography-high resolution mass spectrometry
(Elsevier, 2019-09-27)The analysis of wastewater for the determination of human biomarkers of exposure (human metabolites) is a non-intrusive, economic and complementary alternative to the analysis of urine in the monitoring of human exposure ... -
Determination of N-Nitrosamines by Gas Chromatography Coupled to Quadrupole–Time-of-Flight Mass Spectrometry in Water Samples
(MDPI, 2020-01-03)An analytical method based on high-resolution quadrupole–time-of-flight (QToF) mass spectrometry has been developed as an alternative to the classical method, using a low-resolution ion trap (IT) analyzer to reduce ... -
Determination of Partition Coefficients of Selected Model Migrants between Polyethylene and Polypropylene and Nanocomposite Polypropylene
(Hindawi, 2016)Studies on nanoparticles have focused the attention of the researchers because they can produce nanocomposites that exhibit unexpected hybrid properties. Polymeric materials are commonly used in food packaging, but from ... -
Determination of persistent and mobile organic contaminants (PMOCs) in water by mixed-mode liquid chromatography-tandem mass spectrometry
(American Chemical Society, 2019-03-21)The presence of persistent and mobile organic contaminants (PMOC) in aquatic environments has become a matter of concern due to their ability of breaking through natural and anthropogenic barriers, even reaching drinking ... -
Determination of pesticide residues in wine by solid-phase extraction on-line combined with liquid chromatography tandem mass spectrometry
(Elsevier, 2021)Liquid chromatography tandem mass spectrometry (LC–MS/MS) has been combined with different sample preparation strategies to determine potential pesticide residues existing in wine. Herein, we propose the on-line coupling ... -
Determination of phycobiliproteins by constant-wavelength synchronous spectrofluorimetry method in red algae
(Taylor & Francis, 2013)Phycobiliproteins are pigment–protein complexes, brilliant-colored and water soluble, existing in cyanobacteria and red algae. They have a great interest in food technology, food supplements, and pharmaceutical applications. ... -
Determination of synthetic opioids in oral fluid samples using fabric phase sorptive extraction and gas chromatography-mass spectrometry
(Elsevier, 2022)New psychoactive substances (NPS) continue to emerge in the drug market every year, becoming a global threat to public health and safety. These compounds are mostly synthetic cannabinoids and designer cathinones. However, ... -
Determination of the Presence of Three Antimicrobials in Surface Water Collected from Urban and Rural Areas
(MDPI, 2013)Due to the continuous release of antimicrobials into the environment, the aim of this study was to compare the frequency of detection of sulfamethazine, sulfamethoxypyridazine and trimethoprim in surface water collected ... -
Determination of Xanthohumol in Hops, Food Supplements and Beers by HPLC
(MDPI, 2019)Xanthohumol (XN) is the main prenylated chalcone present in hops (Humulus lupulus) with high biological activity, and it is of great importance for human health because of its antioxidant, anti-inflammatory, immunosuppressive ... -
Development and application of an in-house library and workflow for gas chromatography–electron ionization–accurate-mass/high-resolution mass spectrometry screening of environmental samples
(Springer, 2021)This work presents an optimized gas chromatography–electron ionization–high-resolution mass spectrometry (GC-EI-HRMS) screening method. Different method parameters affecting data processing with the Agilent Unknowns Analysis ... -
Development of a simple method for the quantitative determination of fatty acids in milk with special emphasis on long-chain fatty acids
(Taylor & Francis, 2012)A new and simple method was developed for the extraction and derivatization of fatty acid (FA) in milk. Lipid extraction of milk was carried out in H2SO4/methanol. Methylation was performed for 2 h at 60°C, and FA methyl ... -
Development of a transcriptomic protocol combining bovine somatic cells and OpenArray® technology to trace the ab(use) of somatotropin in dairy cattle
(Proteomass Scientific Society, 2017-12)In the case of recombinant bovine somatotropin (rbST), in Europe it is key to control misuse in cattle in vivo, during the period of lactation of the cow. Therefore, target samples have to be easy to collect, the method ... -
Dialkylketones in paperboard food contact materials—method of analysis in fatty foods and comparative migration into liquid simulants versus foodstuffs
(MDPI, 2020)Dialkyl diketene dimers are used as sizing agents in the manufacture of paper and board for food contact applications to increase wetting stability. Unbound residues can hydrolyze and decarboxylate into dialkylketones. ... -
Dietary Exposure Estimation to Chemicals Transferred from Milk and Dairy Products Packaging Materials in Spanish Child and Adolescent Population
(MDPI, 2020)Packaging materials are subject to risk assessment since they can transfer their components to the food, and they may constitute a risk for the consumers’ health. Therefore, estimating the exposure to chemicals migrating ...