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Host guest complexation of oligosaccharides interaction of maltodextrins with hydrophobic fluorescence probes in water



Host guest complexation of oligosaccharides interaction of maltodextrins with hydrophobic fluorescence probes in water



Tetrahedron Letters 33(26): 3775-3778



Fluorimetric titration studies indicate that higher homologs of maltodextrin, i.e. .beta.-1,4-linked linear glucose oligomers, bind fluorescence probes 1,8-ANS and 2,6-TNS in a 1:1 stoichiometry in water at pH 6.8 and 25.degree. C. Although the binding constants even for heptaose (5.7 M-1 for ANS and 27 M-1 for TNS) are significantly smaller than those for the cyclic counterpart, .beta.-cyclodextrin (93 M-1 for ANS and 1700 M-1 for TNS), the micropolarities of the probe-binding sites of linear and cyclic hosts are rather similar to each other.

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Accession: 007406920

Download citation: RISBibTeXText

DOI: 10.1016/0040-4039(92)80022-c


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