Method for preparing high-purity crystalline lactulose

Details Method for preparing high-purity crystalline lactulose Method for preparing high-purity crystalline lactulose

1988-01-11

1991-03-26

Griffin, Ronald W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 11, 536 41, 127 30, 127 461, 127 58, C07H 106, C13F 102

Patent

active

050030612

ABSTRACT:
A method for preparing high-purity crystalline lactulose and the product obtained by the method, which comprises crystallization from aqueous solutions at a temperature of 5.degree.-40.degree. C., the starting aqueous solution having a lactulose concentration of 50-80% w/w, a lactose concentration of less than 5% of the lactulose concentration by weight, a galactose concentration of less than 5% of the lactulose concentration by weight, and a concentration of other sugars of less than 4% of the lactulose concentration by weight.

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