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US 6,877,249 B1Granted
Method of drying a lactulose solution
AssigneeRelax Limited
InventorsAlan Kenneth Greenwood, Anthony Christopher Allen, Jaap Van Dijk
Life of this patent
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Abstract
A method of drying a lactulose solution comprises introducing the solution into a vacuum chamber at elevated temperature and at reduced pressure so that the solution forms a foam, drying the foam under reduced pressure, and milling or grinding or breaking the dried foam into powder.
Claims11
A method of drying a lactulose solution, comprising
- introducing the solution into a vacuum chamber at elevated temperature and at reduced pressure so that the solution forms a foam;
- drying the foam under reduced pressure;
- and
- optionally, subjecting the dried foam to a process selected from the group consisting of milling, grinding, breaking and combinations thereof to form a powder.
1 more element
A method of drying a lactulose solution comprising
- subjecting the solution to conditions of raised temperature and reduced pressure so that the solution expands into a foam, and drying the foam.
Dependencies are inferred from the claim text.