Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

    Records 1 - 5 / 5

    • help
    • print

      Print search results

    • export

      Export search results

    Check title to add to marked list
    The influence of microplastics and halogenated contaminants in feed on toxicokinetics and gene expression in European seabass (Dicentrarchus labrax)
    Granby, Kit ; Rainieri, Sandra ; Rasmussen, Rie Romme ; Kotterman, Michiel J.J. ; Sloth, Jens Jørgen ; Cederberg, Tommy Licht ; Barranco, Alex ; Marques, António ; Larsen, Bodil Katrine - \ 2018
    Environmental Research 164 (2018). - ISSN 0013-9351 - p. 430 - 443.
    Elimination - Gene expression - Microplastics - PBDE - PCB
    When microplastics pollute fish habitats, it may be ingested by fish, thereby contaminating fish with sorbed contaminants. The present study investigates how combinations of halogenated contaminants and microplastics associated with feed are able to alter toxicokinetics in European seabass and affect the fish. Microplastic particles (2%) were added to the feed either with sorbed contaminants or as a mixture of clean microplastics and chemical contaminants, and compared to feed containing contaminants without microplastics. For the contaminated microplastic diet, the accumulation of polychlorinated biphenyls (PCBs) and brominated flame retardants (BFRs) in fish was significantly higher, increasing up to 40 days of accumulation and then reversing to values comparable to the other diets at the end of accumulation. The significant gene expression results of liver (cyp1a, il1β gstα) after 40 days of exposure indicate that microplastics might indeed exacerbate the toxic effects (liver metabolism, immune system, oxidative stress) of some chemical contaminants sorbed to microplastics. Seabass quickly metabolised BDE99 to BDE47 by debromination, probably mediated by deiodinase enzymes, and unlike other contaminants, this metabolism was unaffected by the presence of microplastics. For the other PCBs and BFRs, the elimination coefficients were significantly lower in fish fed the diet with contaminants sorbed to microplastic compared to the other diets. The results indicate that microplastics affects liver detoxification and lipid distribution, both of which affect the concentration of contaminants.
    Oral bioaccessibility of toxic and essential elements in raw and cooked commercial seafood species available in European markets
    Alves, Ricardo N. ; Maulvault, Ana L. ; Barbosa, Vera L. ; Fernandez-Tejedor, Margarita ; Tediosi, Alice ; Kotterman, Michiel ; Heuvel, Fredericus H.M. van den; Robbens, Johan ; Fernandes, José O. ; Romme Rasmussen, Rie ; Sloth, Jens J. ; Marques, António - \ 2018
    Food Chemistry 267 (2018). - ISSN 0308-8146 - p. 15 - 27.
    Bioaccessibility - Seafood - Steaming - Toxic/essential elements
    The oral bioaccessibility of several essential and toxic elements was investigated in raw and cooked commercially available seafood species from European markets. Bioaccessibility varied between seafood species and elements. Methylmercury bioaccessibility varied between 10 (octopus) and 60% (monkfish). Arsenic (>64%) was the toxic element showing the highest bioaccessibility. Concerning essential elements bioaccessibility in raw seafood, selenium (73%) and iodine (71%) revealed the highest percentages. The bioaccessibility of elements in steamed products increased or decreased according to species. For example, methylmercury bioaccessibility decreased significantly after steaming in all species, while zinc bioaccessibility increased in fish (tuna and plaice) but decreased in molluscs (mussel and octopus).Together with human exposure assessment and risk characterization, this study could contribute to the establishment of new maximum permissible concentrations for toxic elements in seafood by the European food safety authorities, as well as recommended intakes for essential elements.
    Technische aspecten, standaarden en richtlijnen m.b.t. EDI & Internet in de agrarische sector
    Aaken, C. van; Graumans, C. ; Holster, H. ; Land, B. van 't; Loosveld, S. ; Meinema, R. ; Romme, R. - \ 2002
    Lelystad : Praktijkonderzoek Rundvee, Schapen en Paarden (Themaboek 57) - 66 p.
    Invloed emissiearm mesttoedienen op graszode
    Everts, H. ; Geurink, J.H. ; Romme, A. - \ 1992
    Praktijkonderzoek / Praktijkonderzoek Rundvee, Schapen en Paarden (PR), Waiboerhoeve 5 (1992)2. - ISSN 0921-8874 - p. 10 - 12.
    luchtverontreiniging - ammoniak - emissie - kunstmeststoffen - graslanden - injectie - mest - plantenvoeding - bodeminjecteurs - vervluchtiging - air pollution - ammonia - emission - fertilizers - grasslands - injection - manures - plant nutrition - soil injectors - volatilization
    Het onderzoek richtte zich op de technische uitvoering van het werk en de effecten op de graszode bijvoorbeeld verdroging en zodekwaliteit.
    Emissiearme mestaanwending in de praktijk
    Everts, H. ; Geuring, J.H. ; Romme, A. - \ 1991
    Praktijkonderzoek / Praktijkonderzoek Rundvee, Schapen en Paarden (PR), Waiboerhoeve 4 (1991)2. - ISSN 0921-8874 - p. 10 - 13.
    De veehouders zijn goed te spreken over de resultaten. De zode-injecteur bleek nog wat kinderziektes te vertonen maar lijkt veelbelovend voor de toekomst.
    Check title to add to marked list

    Show 20 50 100 records per page

    Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.