Carbohydrates kestose

Calub, T.M., Waterhouse, A.L., and Chatterton, N.J., Conformational analysis of D-fructans. I. Proton and carbon chemical-shift assignments for 1-kestose from two-dimensional NMR-spectral measurements, Carbohydrate Res., 199, 11-17, 1990. 

Jarrell, H.C., Conway, T.F., Moyna, P., and Smith, I.C.P., Manifestation of anomeric form, ring structure, and linkage in the carbon-13 NMR spectra of oligomers and polymers containing D-fructose, maltulose, isomaltulose, sucrose, leucrose, 1-kestose, nystose, inulin, and grass levan, Carbohydrate Res., 76, 45-57, 1979. 

The pure enzyme displayed the preference sucrose > raffinose > 1-kestose > nystose (in a ratio 100 24 10 6). Other carbohydrates such as turanose, cellobiose, melibiose, leucrose, methyl-a-D-glucopyranoside, and stachyose were also tested but their activity was negligible. Thus, the enzyme only recognized sugars containing a sucrose moiety in their chemical structure. The trisaccharide raffinose is equivalent to a sucrose molecule substituted at the C-6 hydroxyl group, whereas... 

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