DEVELOPMENT OF A LIQUID CHROMATOGRAPHY/TANDEM MASS SPECTROMETRY METHOD TO DETECT AND COMPARE KINETICS OF ENROFLOXACIN AND CIPROFLOXACIN ACCUMULATION AND DECONTAMINATION IN TRA CATFISH AND SHRIMP.
Scippo, Marie-Louise ; ; Widart, Joëlle et al
Poster (2011)Detailed reference viewed: 24 (2 ULg)
DETERMINATION AND KINETICS OF MALACHITE GREEN AND LEUCOMALACHITE GREEN IN TRA CATFISH (PANGASIONODON HYPOPHTHALMUS).
Scippo, Marie-Louise ; ; Baiwir, Dominique et al
Conference (2011)Detailed reference viewed: 8 (1 ULg)
DETERMINATION OF TRIFLURALIN RESIDUES IN CULTURED CATFISH AND WATER.
; ; et al
Poster (2011)Detailed reference viewed: 63 (3 ULg)
Mise au point d'une stratégie analytique pour le contrôle des résidus d'acide oxolinique dans la chair du Tilapia "Oreochromis niloticus". Scientific Day of the Faculty of Veterinary Medicine, Liège, 9 December 2011.
; ; Douny, Caroline et al
Poster (2011)Detailed reference viewed: 21 (4 ULg)
Development of a LC-UV-MS analytical method for aldehydes formed during fatty acids degradation.
Douny, Caroline ; ; Brose, François et al
Poster (2011)Detailed reference viewed: 22 (2 ULg)
The Use of Phages and Aptamers as Alternatives to Antibodies in Medical and Food Diagnostics.
; ; et al
in Komorowska, Malgorzata Anna; Olsztynska-Janus, Sylwia (Eds.) Biomedical Engineering, Trends, Research and Technologies (2011)Detailed reference viewed: 57 (5 ULg)
Faut-il interdire le Bisphenol A dans les récipients destinés à contenir des aliments ?
in Culture, le magazine culturel en ligne de l'Université de Liège - DOSSIER/ Controverses scientifiques - http://culture.ulg.ac.be/jcms/prod_494506/dossier/-controverses-scientifiques?section=cdu_5047 (2011)Detailed reference viewed: 68 (7 ULg)
Potential of an in vitro toolbox combined with exposure data as a first step for the risk assessment of dietary chemical contaminants
; Van Der Heiden, Edwige ; et al
in Food Additives & Contaminants (2011), 28(9), 1136-1158
In vitro risk assessment of dietary contaminants has become a priority in human food safety. This paper proposes an in vitro approach associating different complementary tools in an original toolbox and ... [more ▼]
In vitro risk assessment of dietary contaminants has become a priority in human food safety. This paper proposes an in vitro approach associating different complementary tools in an original toolbox and aims to improve the assessment of the toxicological impact of dietary contaminants at realistic human exposure levels, with a special focus on the intestinal compartment. The system is based on the use of four complementary cellular tools, namely stress gene induction in transgenic strains of Escherichia coli, modulation of the activity of key biotransformation enzymes (cytochrome P-450 (CYP) 1A1 and 3A4) in a human intestinal cell line, and activation of aryl hydrocarbon receptor (AhR) and oestrogenic receptor (ER)-dependent genes in agonistic and antagonistic assays with luciferase reporter cells. It was applied to four chosen model molecules: ochratoxin A (OTA) and deoxynivalenol (DON), two common food-borne mycotoxins, and imazalil (IMA) and benomyl (BEN), two fungicides widely occurring in foodstuffs. All these assays were performed at or around a realistic intestinal concentration, determined through a deterministic approach based on the calculation of a theoretical maximum daily intake (TMDI). Using the four model molecules, it is clearly highlighted that induction of CYP1A1 activity and inhibition of CYP3A4 activity occurred in Caco-2 cells at a realistic intestinal concentration of IMA. Furthermore, some bacterial stress genes were induced in a range of realistic concentrations, following exposure to DON and IMA. In addition, BEN clearly provoked an ER agonistic activity in a human oestrogen sensitive reporter cell line. All these results are in accordance with the literature, suggesting that the in vitro toolbox constitutes an interesting approach in order to obtain a first 'fingerprint' of dietary contaminants at realistic human exposure for further risk assessment. [less ▲]Detailed reference viewed: 12 (0 ULg)
Optimisation of a new two-plate screening method for the detection of antibiotic residues in meat
; Degand, Guy ; Douny, Caroline et al
in International Journal of Food Science & Technology (2011), 46Detailed reference viewed: 44 (13 ULg)
New approach to quantitative analysis of benzo[a]pyrene in food supplements by an immunochemical column test
; ; et al
in Talanta (2011), 85Detailed reference viewed: 29 (9 ULg)
In vitro selection and characterization of DNA aptamers recognizing chloramphenicol
; ; et al
in Journal of Biotechnology (2011), 155Detailed reference viewed: 14 (1 ULg)
Modulation of CYP1A1 activity by a Ginkgo biloba extract in the human intestinal Caco-2 cells
; ; et al
in Toxicology Letters (2011), 202(3), 193-202Detailed reference viewed: 13 (3 ULg)
Determination and kinetics of enrofloxacin and ciprofloxacin in Tra catfish (Pangasianodon hypophthalmus) and giant freshwater prawn (Macrobrachium rosenbergii) using a liquid chromatography/mass spectrometry method
Danyi, Sophie ; Widart, Joëlle ; Douny, Caroline et al
in Journal of Veterinary Pharmacology & Therapeutics (2011), 34(2), 142-152Detailed reference viewed: 101 (31 ULg)
OPTIMIZATION OF A NEW TWO-PLATE SCREENING METHOD FOR THE DETECTION OF ANTIBIOTIC RESIDUES IN MEAT
Pham Kim, Dang ; Degand, Guy ; Danyi, Sophie et al
Poster (2010, June)Detailed reference viewed: 72 (17 ULg)
DETERMINATION AND KINETICS OF MALACHITE GREEN AND LEUCOMALACHITE GREEN IN TRA CATFISH (PANGASIONODON HYPOPHTHALMUS)
Danyi, Sophie ; Baiwir, Dominique ; Pham Kim, Dang et al
Poster (2010, June)Detailed reference viewed: 64 (14 ULg)
Antibiotics and pesticides residues in aquaculture products
Conference (2010, April 28)Detailed reference viewed: 53 (13 ULg)
Development of quantitative methods to detect trace amounts of hazelnut and soy allergens in food
Dobson, Rowan ; ; Kirsch, Stéphanie et al
Poster (2010)Detailed reference viewed: 50 (9 ULg)
REVISED EU-CRITERIA FOR APPLYING BIOANALYTICAL METHODS FOR SCREENING OF FEED AND FOOD FOR DIOXINS AND DIOXIN-LIKE PCBS.
; ; Eppe, Gauthier et al
in Organohalogen Compounds (2010), 72Detailed reference viewed: 24 (1 ULg)
Removal of Androgens and Estrogens from Water by Reactive Materials
; ; et al
in Journal of Water Resource and Protection (2010), 2(11), 990-993
Nowadays, endocrine disruptor compounds in the water system have become a concern due to the risk of contamination to wild life and humans even at the nanogram level. Excess estrogens and androgens are a ... [more ▼]
Nowadays, endocrine disruptor compounds in the water system have become a concern due to the risk of contamination to wild life and humans even at the nanogram level. Excess estrogens and androgens are a major contributor group of endocrine compounds. Statistical surveys have shown that dairy farms contribute to over 90% of the total estrogens in the UK and US. An analytical system is being developed to assess the efficiency of reactive materials to remove target hormonal contaminants from dairy farm effluent. This can be achieved using reporter gene assays (RGAs) to detect low level steroid hormones. A preliminary study comparing the efficiency of granular activated carbon, zero-valent iron, and organoclay was carried out using bench-scale evaluations in negative control HPLC water. Their potential ability to remove testosterone and 17-β- estradiol spiked at reported environmental levels was measured by androgenic and estrogenic luminescent reporter assay respectively. [less ▲]Detailed reference viewed: 50 (10 ULg)
NEW CUT-OFF VALUES FOR APPLICATIONS IN BIOANALYTICAL SCREENING: DECISION OVER SAMPLE COMPLIANCE WITH LEGAL LIMITS SET BY THE EUROPEAN UNION FOR PCDD/Fs AND DIOXIN-LIKE PCBs.
; Eppe, Gauthier ; et al
in Organohalogen Compounds (2010), 72Detailed reference viewed: 13 (0 ULg)