Quantitative analysis of gangliosides in bovine milk and colostrum-based dairy products by ultrahigh performance liquid chromatography-tandem mass spectrometry

Hyeyoung Lee, J. Bruce German, Randy Kjelden, Carlito B Lebrilla, Daniela Barile

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

Milk gangliosides have gained considerable attention because they participate in diverse biological processes, including neural development, pathogen binding, and activation of the immune system. Herein, we present a quantitative measurement of the gangliosides present in bovine milk and other dairy products and byproducts. Ultrahigh performance liquid chromatography separation was used for high-throughput analysis and achieved a short running time without sacrificing chromatographic resolution. Dynamic multiple reaction monitoring was conducted for 12 transitions for GM3 and 12 transitions for GD3. Transitions to sialic acid fragments (m/z 290.1) were chosen for the quantitation. There was a considerable amount of gangliosides in day 2 milk (GM3, 0.98 mg/L; GD3, 15.2 mg/L) which dramatically decreased at day 15 and day 90. GM3 and GD3 were also analyzed in pooled colostrum, colostrum cream, colostrum butter, and colostrum buttermilk. The separation and analytical approaches here proposed could be integrated into the dairy industry processing adding value to side-streams.

Original languageEnglish (US)
Pages (from-to)9689-9696
Number of pages8
JournalJournal of Agricultural and Food Chemistry
Volume61
Issue number40
DOIs
StatePublished - 2013

Keywords

  • bovine colostrum
  • dairy products
  • gangliosides
  • multiple reaction monitoring
  • ultrahigh performance liquid chromatography

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Chemistry(all)

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