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  • Title: A new, quick, highly sensitive ultramicro-analysis method for the identification of fructose removed from fructofuranosyl-containing gluco-oligosaccharides by ESI-CID-MS/MS.
    Author: Zhang HT, Zhu L, Zhang S, Zhan XB, Lin CC.
    Journal: Carbohydr Res; 2014 Oct 29; 398():1-7. PubMed ID: 25238123.
    Abstract:
    An efficient, highly sensitive, and ultramicroscale analytical method for the identification of fructose removed from fructofuranosyl-containing gluco-oligosaccharides, including malto-oligosyl fructofuranosides and oligomeric (1→2)-α-D-glucopyranosyl-(1→2)-β-D-fructofuranosides by ESI-CID-MS/MS has been developed with proven applications far superior to the existing method using NMR. With the established principle of diagnostic fragmentation by ESI-CID-MS/MS, the terminal saccharide (either glucose or fructose) can be readily and unambiguously determined at high sensitivity without a tedious derivatization process. Detection of the A-type fragmentation (0,4)A-h type ion, and (0,2)A type ion are useful as a diagnostic fragmentation tool to identify whether fructose terminal is removed from oligosaccharides. It will facilitate the efficient production of suitable oligosaccharide microarrays crucial for studies on carbohydrate-protein interaction in seeking functional carbohydrates.
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