Cyclodextrins

Cyclodextrins have the structure that D-glucoses are bonded cyclically by alpha-1,4 bonding. Cyclodexrins inculde organics and change their characteristics. Therefore, cyclodextrins are used as stabilizers, antioxidants, antivolatilizers and food additives. Three kinds of cyclodextrins which consist of 6 glucoses(alpha), 7 glucoses(beta) and 8 glucoses(gamma) are analyzed. Two columns, Asahipak GS-220 HQ and SUGAR KS-802 are used and the cromatograms show that better peak shapes can be obtained using GS-220 HQ.


Sample :
1. alpha-Cyclodextrin
2. beta-Cyclodextrin
3. gamma-Cyclodextrin

Columns      : Shodex Asahipak GS-220 HQ (7.5mmID*300mm) x 2   Shodex SUGAR KS-802 (8.0mmID*300mm) x 2
Eluent       : H2O                                             H2O
Flow rate    : 0.6mL/min                                       1.0mL/min 
Detector     : Shodex RI                                       Shodex RI
Column temp. : 60deg-C                                         80deg-C