Minimum number of water molecules required for inclusion of d-limonene in the cyclodextrin cavity.
The ratios of inclusion of d-limonene in alpha-, beta-, and gamma-cyclodextrin (CD) cavities were measured under low moisture conditions by a micro-aqueous method, and the minimum numbers of water molecules required for inclusion of d-limonene in alpha-, beta-, and gamma-CD cavities were determined by the auto-catalytic inclusion model. The minimum number of water molecules required for alpha-, beta-, and gamma-CD inclusion calculated from the proposed model were comparable with that in the CD cavity in the crystal state. The effect of ethanol upon the inclusion process was investigated, particularly with a low water content. This is the first study involving measurement of the minimum number of water molecules required for the inclusion of organic molecules (d-limonene) in the CD cavity.
Yoshii
H
H
Department of Biochemical Engineering, Toyama National College of Technology.
Furuta
T
T
Yasunishi
A
A
Hirano
H
H
D002236:Carbohydrate Conformation; D002384:Catalysis; D003505:Cyclodextrins / Q000737:chemistry*; D053138:Cyclohexenes; D000431:Ethanol / Q000737:chemistry; D000077222:Limonene; D008832:Microchemistry / Q000379:methods; D013729:Terpenes / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
D003505:Cyclodextrins; D053138:Cyclohexenes; D013729:Terpenes; D014867:Water; D000431:Ethanol; D000077222:Limonene