
TY  - JOUR
A1  - Zheng, M. 
A1  - Endo, T. 
A1  - Zimmermann, W. 
T1  - Enzymatic Synthesis and Analysis of Large-Ring Cyclodextrins
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2002
VL  - 55
IS  - 2
SP  - 39
EP  - 48
KW  - 
UR  - https://doi.org/10.1071/CH01189 
N2  - Large-ring cyclodextrins (LR-CD) are cyclic &#945;-1,4-glucans composed of nine to more than several hundred glucopyranose units. Cyclodextrins are able to form highly specific inclusion complexes with a wide range of guest molecules thereby modifying their physicochemical properties. Only in the past 10 years, LR-CD with a degree of polymerization between 9 and 32 have been isolated and characterized. The structures of these LR-CD show novel features distinct from those of the extensively studied &#945;- &#946;-, and &#947;-CD composed of six, seven, and eight glucopyranose units, respectively. Recent work on the enzymatic synthesis of LR-CD has confirmed the ability of different 4-&#945;-glucanotransferases to form large cyclic &#945;-1,4-glucans from amylose and amylopectin, depending on the specificity of the enzyme used and on the substrate and reaction conditions chosen. The potential of LR-CD for specific host-guest interactions and corresponding applications has been demonstrated. 
ER  -

