Process for preparing 1-O-alpha-D-glucopyranosido-D-fructose
AssigneeSuddeutsch Zucker Aktiengesellschaft
InventorMohammad Munir
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Abstract
A process for preparing 1-O-.alpha.-glucopyranoside-D-fructose by enzymatically converting sucrose is described, wherein a sucrose solution is brought into contact with free or immobilized, living or dead whole cells or with microorganisms forming the free or immobilized enzyme extract of isomaltulose from saccharose, the solution so treated being next subjected to chromatographic separation at ion exchangers or other suitable separation materials to obtain the 1-O-.alpha.-D-glucopyranosido-D-fructose as an aqueous solution which is then converted by methods known per se into the dry form.
Claims7
A process for preparing 1-O-.alpha.-D-glucopyranosido-D-fructose by the enzymatic conversion of isomaltulose, comprising contacting a 20-55% (w/w) aqueous solution of isomaltulose at a temperature of 25.degree.-55.degree. C. with a microorganism or an enzyme of a microorganism which forms isomaltulose from sucrose to form a first product solution containing isomaltulose and said 1-O-.alpha.-D-glucopyranosido-D-fructose;
- removing at least a portion of the isomaltulose from said first product solution by crystallization to form a mother liquor;
- and recovering said 1-O-.alpha.-D-glucopyranosido-D-fructose from the mother liquor.
Dependencies are inferred from the claim text.