A non-reducing cyclic saccharide consisting of eight α-1,4-linked D-glucopyranosyl units produced by the action of cyclodextrin glucosyltransferase (CGTase, EC 2.4.1.19) on hydrolysed starch. Recovery and purification of γ-cyclodextrin may be carried out by precipitation of a complex of γ-cyclodextrin with 8-cyclohexadecen-1-one, dissolution of the complex with water and n-decane, steam-stripping of the aqueous phase and recovery of gamma-CD from the solution by crystallisation.
Chemical name
Cyclooctaamylose
CAS number
17465-86-0
Chemical formula
(C6H10O5)8
Structural formula
Assay
Not less than 98 % (dry basis)
Description
Virtually odourless, white or almost white crystalline solid
