New galactosyllactose containing α-glycosidic linkage isolated from ovine (Booroola dorset) colostrum

Tadasu Urashima, Tadao Saito, Junko Nishimura, Hideko Ariga

    Research output: Contribution to journalArticlepeer-review

    45 Citations (Scopus)

    Abstract

    Three trisaccharides, tetra-, penta-, hexa- and certain higher oligosaccharides were obtained from ovine colostrum as free forms. The chemical structure of the three trisaccharides were determined by methylation and 13C-NMR analyses to be as follows: Galα13Galβ14Glc, Galβ13Galβ14Glc (3′-galactosyllactose) and Galβ16Galβ14Glc (6′-galactosyllactose). Galα13Galβ14Glc, which had been confirmed as the oligosaccharide portion of a glycolipid prepared biosynthetically from rat spleen or bone marrow, has been identified for the first time from natural sources as a free form. The trisaccharide containing α-galactosyl unit is a novel compound in mammalian milk.

    Original languageEnglish
    Pages (from-to)375-378
    Number of pages4
    JournalBBA - General Subjects
    Volume992
    Issue number3
    DOIs
    Publication statusPublished - 1989 Sep 15

    Keywords

    • (Ovine colostrum)
    • C-
    • Carbohydrate structure
    • Galactosyllactose
    • NMR
    • Oligosaccharide
    • neutral

    ASJC Scopus subject areas

    • Biophysics
    • Biochemistry
    • Molecular Biology

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