Influence of winemaking practices on the concentrations of rare earth elements in white wines studied by inductively coupled plasma-mass spectrometry. (Articolo in rivista)

Type
Label
  • Influence of winemaking practices on the concentrations of rare earth elements in white wines studied by inductively coupled plasma-mass spectrometry. (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Rossano C. Eugenio; Szilagyi Zoltan; Malorni Antonio; Pocsfalvi Gabriella (2007)
    Influence of winemaking practices on the concentrations of rare earth elements in white wines studied by inductively coupled plasma-mass spectrometry.
    in Journal of agricultural and food chemistry
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Rossano C. Eugenio; Szilagyi Zoltan; Malorni Antonio; Pocsfalvi Gabriella (literal)
Pagina inizio
  • 311 (literal)
Pagina fine
  • 317 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 55 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Rossano C. Eugenio, Malorni Antonio, Pocsfalvi Gabriella: Proteomic and Biomolecular Mass Spectrometry Center (CeSMa-ProBio), Institute of Food Science and Technology, C.N.R., via Roma, 52 a/c, 83100 Avellino, Italy; Szilagyi Zoltan: Research Institute for Viticulture and Enology, Kolyukteto, 3300 Eger, Hungary (literal)
Titolo
  • Influence of winemaking practices on the concentrations of rare earth elements in white wines studied by inductively coupled plasma-mass spectrometry. (literal)
Abstract
  • Influence of clarification, filtration, and storage on the concentration of rare earth elements (REEs) was studied in white wines by inductively coupled plasma mass spectrometry (ICP-MS). Smooth and parallel chondrite-normalized (CN) plots were obtained for wines which have never been in contact with fining agents. Clarification and filtration generally used in white wine production were simulated in the laboratory using nontreated reference wines, and CN plots were compared before and after treatments. Clarification by bentonites yields an overall increase in REE concentrations resulting in substantially parallel CN curves well above the plots of the corresponding nontreated wines. Filtration using silicate (SiO2), on the other hand, changes the CN profile in a nonparallel manner due to a higher release of La, Ce, Pr, Nd, and Gd, more than other elements studied. Filtration with cellulose powder causes a small increase in the concentration of light REEs, while the concentrations of other elements remain basically unchanged. Storage conditions could also affect the REE pattern of wine. We found that the influence of glass is greater than that of stainless steel and wood. In addition, we report that commercially available finished white wines from the same region show highly different REE patterns depending on the winemaking practices employed. (literal)
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