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Published on: November 20, 2014
Isolation and structural analysis of three new disialylated oligosaccharides from human milk
G Grönberg1, P Lipniunas, T Lundgren
1Department of Carbohydrate Chemistry, University of Lund, Sweden.
Abstract:
Five disialylated oligosaccharides, of which three were new compounds, were isolated from pooled human milk. The isolation procedure included gel filtration and ion-exchange chromatography and the final purification was accomplished by HPLC using a mobile phase containing triethylamine as an ion-pairing reagent. Structural analysis was carried out by chemical analyses, fast atom bombardment mass spectrometry, and 500-MHz NMR spectroscopy. The following new structures were found: (formula; see text).

