Process for producing alpha-cyclodextrin using cyclomaltodextrin glucanotransferase in presence of cyclohexane
AssigneeAmerican Maize Technology, Inc.
InventorsWen J. Shieh, Allan R. Hedges
Life of this patent
Estimating the term…
Abstract
A process for producing alpha-cyclodextrin using cyclomaltoextrin glucanotransferase is disclosed. The enzyme is obtained from Bacillus macerans. Starch hydrolysate is treated with the enzyme at a temperature of between about 15.degree. C. and about 40.degree. C. wherein the conversion is performed in the presence of cyclohexane and substantially no gamma-cyclodextrin is produced. The resulting alpha-cyclodextrin is then recovered.
Claims10
In a process for making an alpha-cyclodextrin using a cyclomaltodextrin glucanotransferase obtained from Bacillus macerans, the improvement comprising treating a starch hydrolysate with said cyclomaltodextrin glucanotransferase obtained from Bacillus macerans at a temperature of between about 15.degree. C. and about 40.degree. C., the conversion being performed in the presence of cyclohexane and recovering said alpha-cyclodextrin.
A process for making alpha-cyclodextrin comprising the steps of:
- (a) treating an aqueous slurry of starch hydrolysate having a DE between 1 and 10 with cyclomaltodextrin glucanotransferase obtained from Bacillus macerans, at a temperature of between about 15.degree. C. and about 40.degree. C., the conversion being performed in the presence of cyclohexane, to form alpha-cyclodextrin without the formation of gamma-cyclodextrin;
- (b) recovering the alpha-cyclodextrin.
Dependencies are inferred from the claim text.