Process for preparing lactulose from lactose, in the form of a s

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

1983-08-01

1985-08-20

Cintins, Ivars

Sugar, starch, and carbohydrates

Products

Sugars only

127 462, 536125, 536127, C13K 500

Patent

active

045362211

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 characterized by using as the lactose epimerizing 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.degree. C. The epimerization is complete in a few minutes.
The crystalline lactulose is obtained by crystallization from ethanol.

REFERENCES:
patent: 3505309 (1970-04-01), Carubelli
patent: 3514327 (1970-05-01), Parrish
patent: 3546206 (1970-12-01), Guth et al.
patent: 3716408 (1973-02-01), Nagasawa et al.
patent: 3816174 (1974-06-01), Nagasawa et al.
patent: 4067748 (1978-01-01), Rowe
patent: 4069104 (1978-01-01), Barker et al.
patent: 4142916 (1979-03-01), Ogasa et al.
patent: 4160675 (1979-07-01), Pannekeet et al.
patent: 4273922 (1981-06-01), Hicks
patent: 4394178 (1983-07-01), Chao et al.

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