Stereoselective thermal transfer of fructose from sucrose to cyclodextrins.
Branched cyclodextrins (CDs) have been formed by the thermal transfer of a fructosyl group from sucrose to O-6 of one of the glucose residues of cyclomaltohexa- and hepta-ose (alpha-CD and beta-CD). In each case the fructosyl group adds almost entirely in the beta configuration. The resultant fructosylcyclodextrins (Fru-CDs) show increased solubility in water and, in the case of Fru-beta-CD increased ability to solubilize sparingly soluble compounds by inclusion, relative to the parent cyclodextrins. However, the Fru-CDs have similar abilities to form complexes as their respective parent CDs. Fru-CDs act as inhibitors of invertase.
Manley-Harris
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Shafizadeh Center for Wood and Carbohydrate Chemistry, University of Montana, Missoula 59812.
Richards
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GN
D003505:Cyclodextrins / Q000737:chemistry*; D005632:Fructose / Q000737:chemistry; D006358:Hot Temperature; D013237:Stereoisomerism; D013395:Sucrose / Q000737:chemistry*
D003505:Cyclodextrins; D005632:Fructose; D013395:Sucrose