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US 4,142,916 AGranted
Method for preparing a non-hygroscopic lactulose-containing powder
AssigneeMorinaga Milk Industry Co., Ltd.
InventorsKatsuhiro Ogasa, Mamoru Tomita, Teruhiko Mizota
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Abstract
Method for manufacturing a lactulose powder with a low hygroscopicity by mixing ethyl alcohol to a highly hygroscopic lactulose-containing powder followed by allowing the resulting mixture to stand or stirring it for at least 1 hour, separating the lactulose-containing material insoluble in ethyl alcohol from the mixture and removing ethyl alcohol from the material separated.
Claims3
A method for preparing a non-hygroscopic lactulose-containing powder characterized by comprising the steps:
- (1) adding at least 0.8 part by weight of ethyl alcohol to 1 part by weight of highly hygroscopic lactulose-containing powder the lactulose content of which is above 55% by weight while adjusting the amount of ethyl alcohol to be added so that the water content in mixture is below 2% by weight;
- (2) allowing the resulting mixture to stand or stirring it at a temperature below the boiling point of ethyl alcohol for at least 1 hour, and cooling, if necessary;
- (3) separating an ethyl alcohol insoluble lactulose-containing material precipitated;
- and
- (4) removing ethyl alcohol from said material.
2 more elements
Dependencies are inferred from the claim text.