Process for preparing lactulose from lactose, in the form of...

Details Process for preparing lactulose from lactose, in the form of... Process for preparing lactulose from lactose, in the form of...

C - Chemistry, Metallurgy

13

K

260/231

C13K 5/00 (2006.01)

Patent

CA 1223580

ABSTRACT A process for preparing lactulose from lactose, in the form of a concentrated syrup or high purity crystals, for pharmaceutical use or for use as a sweetener. The process is characterised by using as the lactose epimerising agent a mixture of equal parts of MgO and sodium hydrosulphite, each component being used to the extent of between 0.05 and 0.2% by weight with respect to the lactulose, at a temperature of about 100°C. The epimerisation is complete in a few minutes. The crystalline lactulose is obtained by crystallisation from ethanol.

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