16 documents found, page 1 of 2
Mycotoxins in Rice Correlate with Other Contaminants? A Pilot Study of the Port...
Silva, Liliana; Pereira, André; Duarte, Sofia; Pedro, Inês; Perdigão, Catarina; Silva, Alexandra; Lino, Celeste M.; Almeida, Anabela; Pena, AngelinaRice is the second most important cereal crop and is vital for the diet of billions of people. However, its consumption can increase human exposure to chemical contaminants, namely mycotoxins and metalloids. Our goal was to evaluate the occurrence and human exposure of aflatoxin B1 (AFB1), ochratoxin A (OTA), zearalenone (ZEN), and inorganic arsenic (InAs) in 36 rice samples produced and commercialized in Portu...
Citrinin in Foods and Supplements: A Review of Occurrence and Analytical Method...
Silva, Liliana J. G.; Pereira, André M. P. T.; Pena, Angelina; Lino, Celeste M.Citrinin (CIT) deserves attention due to its known toxic effects in mammalian species and its widespread occurrence in food commodities, often along with ochratoxin A, another nephrotoxic mycotoxin. Human exposure, a key element in assessing risk related to food contaminants, depends upon mycotoxin contamination levels in food and on food consumption. Commercial supplements, commonly designated as red rice, usu...
Selected Pharmaceuticals in Different Aquatic Compartments: Part I-Source, Fate...
Pereira, André; Silva, Liliana; Laranjeiro, Célia S. M.; Lino, Celeste M.; Pena, AngelinaPotential risks associated with releases of human pharmaceuticals into the environment have become an increasingly important issue in environmental health. This concern has been driven by the widespread detection of pharmaceuticals in all aquatic compartments. Therefore, 22 pharmaceuticals, 6 metabolites and transformation products, belonging to 7 therapeutic groups, were selected to perform a systematic review...
Selected Pharmaceuticals in Different Aquatic Compartments: Part II-Toxicity an...
Pereira, André; Silva, Liliana; Laranjeiro, Célia S. M.; Lino, Celeste M.; Pena, AngelinaPotential risks associated with releases of human pharmaceuticals into the environment have become an increasingly important issue in environmental health. This concern has been driven by the widespread detection of pharmaceuticals in all aquatic compartments. Therefore, 22 pharmaceuticals, 6 metabolites and transformation products, belonging to 7 therapeutic groups, were selected to perform a review on their t...
Reviewing the Analytical Methodologies to Determine the Occurrence of Citrinin ...
Silva, Liliana; Pereira, André; Duarte, Sofia; Pena, Angelina; Lino, Celeste M.Until now, the available data regarding citrinin (CIT) levels in food and the consumption of contaminated foods are insufficient to allow a reliable estimate of intake. Therefore, biomonitoring configuring analysis of parent compound and/or metabolites in biological fluids, such as urine or blood, is being increasingly applied in the assessment of human exposure to CIT and its metabolite, dihydrocitrinone (DH-C...
Ochratoxin A in Beers Marketed in Portugal: Occurrence and Human Risk Assessment
Silva, Liliana J. G.; Teixeira, Ana C.; Pereira, André; Pena, Angelina; Lino, Celeste M.Ochratoxin A (OTA) is produced by fungi present in several agricultural products with much relevance to food safety. Since this mycotoxin is widely found in cereals, beer has a potential contamination risk. Therefore, it was deemed essential to quantify, for the first time, the levels of OTA in beer, a cereal-based product that is marketed in Portugal, as well as to calculate the human estimated weekly intake (...
Uptake, accumulation and metabolization of the antidepressant fluoxetine by Myt...
Silva, Liliana J. G.; Martins, Margarida C.; Pereira, André M. P. T.; Meisel, Leonor M.; Gonzalez-Rey, Maria; Bebianno, Maria João; Lino, Celeste M.Fluoxetine, a selective serotonin re-uptake inhibitor (SSRI) antidepressant, is among the most prescribed pharmaceutical active substances worldwide. This study aimed to assess its accumulation and metabolization in the mussel Mytillus galloprovincialis, considered an excellent sentinel species for traditional and emerging pollutants. Mussels were collected from Ria Formosa Lagoon, Portugal, and exposed to a no...
Occurrence and risk assessment of zearalenone in flours from Portuguese and Dut...
Aldana, Juan Ramos; Silva, Liliana J. G.; Pena, Angelina; V., Jordi Mañes; Lino, Celeste M.The occurrence of zearalenone (ZEA) in different flours for human consumption, from the Portuguese and Dutch markets, was evaluated. Good analytical performance was obtained through extraction with acetonitrile:water (90:10), clean-up with immunoaffinity columns, and detection and quantification by liquid chromatography-fluorescence detection. ZEA levels were determined in 48 samples to verify the compliance wi...
SPE-LC-FD Determination of Polycyclic Aromatic Hydrocarbon Monohydroxy Derivati...
Lourenço, Diana; Silva, Liliana J.G.; Lino, Celeste M.; Morais, Simone; Pena, AngelinaA new analytical methodology, based on liquid chromatography with fluorescence detection (LC-FD), after extraction, enzymatic hydrolysis, and solid-phase extraction (SPE) through Oasis HLB cartridges, was developed and validated for the simultaneous determination of three monohydroxy derivatives of polycyclic aromatic hydrocarbons (PAHs). The optimized analytical method is sensitive, accurate, and precise, with...
Risk assessment of additives through soft drinks and nectars consumption on Por...
Diogo, Janina S. G.; Silva, Liliana S. O.; Pena, Angelina; Lino, Celeste M.This study investigated whether the Portuguese population is at risk of exceeding ADI levels for acesulfame-K, saccharin, aspartame, caffeine, benzoic and sorbic acid through an assessment of dietary intake of additives and specific consumption of four types of beverages, traditional soft drinks and soft drinks based on mineral waters, energetic drinks, and nectars. The highest mean levels of additives were fou...