Search Results - "Di Mavungu, José Diana"
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Validated UPLC-MS/MS Methods To Quantitate Free and Conjugated Alternaria Toxins in Commercially Available Tomato Products and Fruit and Vegetable Juices in Belgium
Published in Journal of agricultural and food chemistry (22-06-2016)“…Ultraperformance liquid chromatography tandem mass spectrometry and Quick, Easy, Cheap, Effective, Rugged, and Safe based analytical methodologies to…”
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In-house validation of a rapid and efficient procedure for simultaneous determination of ergot alkaloids and other mycotoxins in wheat and maize
Published in Analytical and bioanalytical chemistry (01-09-2018)“…A fundamental step in addressing the global problem of mycotoxins is the development of highly sensitive, multi-class extraction and detection methods. This…”
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Genetic and Toxigenic Variability within Aspergillus flavus Population Isolated from Maize in Two Diverse Environments in Kenya
Published in Frontiers in microbiology (26-01-2018)“…is the main producer of carcinogenic aflatoxins in agricultural commodities such as maize. This fungus occurs naturally on crops, and produces aflatoxins when…”
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Unravelling the Diversity of the Cyclopiazonic Acid Family of Mycotoxins in Aspergillus flavus by UHPLC Triple-TOF HRMS
Published in Toxins (13-01-2017)“…Cyclopiazonic acid (α-cyclopiazonic acid, α-CPA) is an indole-hydrindane-tetramic acid neurotoxin produced by various fungal species, including the notorious…”
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Secondary Metabolite Dereplication and Phylogenetic Analysis Identify Various Emerging Mycotoxins and Reveal the High Intra-Species Diversity in Aspergillus flavus
Published in Frontiers in microbiology (05-04-2019)“…is one of the most important mycotoxigenic species from the genus , due to its ability to synthesize the potent hepatocarcinogen, aflatoxin B . Moreover, this…”
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Multimycotoxin analysis in urines to assess infant exposure: A case study in Cameroon
Published in Environment international (01-07-2013)“…This study was conducted to investigate mycotoxin exposure in children (n=220, aged 1.5–4.5years) from high mycotoxin contamination regions of Cameroon and to…”
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Development of Suspension Polymerized Molecularly Imprinted Beads with Metergoline as Template and Application in a Solid-Phase Extraction Procedure toward Ergot Alkaloids
Published in Analytical chemistry (Washington) (04-12-2012)“…The first successfully developed molecularly imprinted polymer toward six ergot alkaloids and their respective epimers is described. A new imprinting molecule,…”
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LC-MS/MS multi-analyte method for mycotoxin determination in food supplements
Published in Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment (01-06-2009)“…A multi-analyte method for the liquid chromatography-tandem mass spectrometric determination of mycotoxins in food supplements is presented. The analytes…”
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Human skin penetration of selected model mycotoxins
Published in Toxicology (Amsterdam) (15-11-2012)“…Graphical abstract Highlights ► Transdermal permeability coefficients are obtained for seven selected mycotoxins. ► Dermal exposure to specific mycotoxins like…”
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A systematic assessment of the variability of matrix effects in LC-MS/MS analysis of ergot alkaloids in cereals and evaluation of method robustness
Published in Analytical and bioanalytical chemistry (01-06-2013)“…The study presents for the first time a systematic investigation of matrix effects in the LC-MS/MS analysis of ergot alkaloids in cereals. In order to assure…”
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11
In vitro glucuronidation of ochratoxin a by rat liver microsomes
Published in Toxins (18-12-2013)“…Ochratoxin A (OTA), one of the most toxic mycotoxins, can contaminate a wide range of food and feedstuff. To date, the data on its conjugates via…”
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Development and validation of an LC–MS/MS method for the simultaneous determination of citrinin and ochratoxin a in a variety of feed and foodstuffs
Published in Journal of Chromatography A (14-12-2018)“…•A new LC–MS method is described for CIT and OTA in several food and feed matrices.•The method was validated for recovery, linearity, precision, matrix effect…”
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Chemical repertoire and biosynthetic machinery of the Aspergillus flavus secondary metabolome: A review
Published in Comprehensive reviews in food science and food safety (01-11-2020)“…Filamentous fungi represent a rich source of extrolites, including secondary metabolites (SMs) comprising a great variety of astonishing structures and…”
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Analytical strategy for determination of known and unknown destruxins using hybrid quadrupole-Orbitrap high-resolution mass spectrometry
Published in Analytical and bioanalytical chemistry (01-05-2017)“…An analytical strategy based on a hybrid quadrupole-Orbitrap mass spectrometry was proposed for the simultaneous screening of known destruxins and…”
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Improved positive electrospray ionization of patulin by adduct formation: Usefulness in liquid chromatography–tandem mass spectrometry multi-mycotoxin analysis
Published in Journal of Chromatography A (28-12-2012)“…► Intense and useful ESI+-MS/MS patulin signal through methanol-adduct formation. ► Confirmation and fragmentation behavior of patulin methanol-adduct. ►…”
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A Validated Multianalyte LC–MS/MS Method for Quantification of 25 Mycotoxins in Cassava Flour, Peanut Cake and Maize Samples
Published in Journal of agricultural and food chemistry (25-05-2011)“…This study was designed to develop a sensitive liquid chromatography tandem mass spectrometry (LC–MS/MS) method for the simultaneous detection and…”
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Use of UHPLC high-resolution Orbitrap mass spectrometry to investigate the genes involved in the production of secondary metabolites in Aspergillus flavus
Published in Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment (03-10-2015)“…The fungus Aspergillus flavus is known for its ability to produce the toxic and carcinogenic aflatoxins in food and feed. While aflatoxins are of most concern,…”
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Microbial Detoxification of Deoxynivalenol (DON), Assessed via a Lemna minor L. Bioassay, through Biotransformation to 3-epi-DON and 3-epi-DOM-1
Published in Toxins (13-02-2017)“…Mycotoxins are toxic metabolites produced by fungi. To mitigate mycotoxins in food or feed, biotransformation is an emerging technology in which microorganisms…”
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Multi-walled carbon nanotubes-based magnetic solid-phase extraction for the determination of zearalenone and its derivatives in maize by ultra-high performance liquid chromatography-tandem mass spectrometry
Published in Food control (01-09-2017)“…A simple and rapid magnetic solid-phase extraction (M-SPE) procedure using multi-walled carbon nanotube-magnetic nanoparticles (MWCNT-MNPs) as sorbents was…”
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Development and validation of a new LC–MS/MS method for the simultaneous determination of six major ergot alkaloids and their corresponding epimers. Application to some food and feed commodities
Published in Food chemistry (01-11-2012)“…► A Validated LC–MS/MS method for ergot alkaloids in food and feed is proposed. ► The method allows simultaneous determination of major ergot alkaloids and…”
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