Pulverulent sorbitol and its process of preparation
AssigneeRoquette Freres
InventorsFranck Moraly, Erik Labergerie, José Lis, Philippe Lefevre, Frédéric Bouvier
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Abstract
The invention relates to a pulverulent sorbitol, characterized in that it exhibits a hygroscopicity value, determined according to a test A, of less than 2%, preferably of less than 1.7%, and a specific surface, determined according to the BET method, at least equal to 2 m2/g, preferably at least equal to 2.2 m2/g, and also relates to its process of preparation. The invention also relates to compositions intended in particular for the food and pharmaceutical fields and to the use of the said pulverulent sorbitol in the preparation of tablets exhibiting a <<smooth in the mouth>> texture.
Claims12
Pulverulent sorbitol, the crystalline form of which is the γ form, having a sorbitol content higher than 95%, which exhibits:
- a hygroscopicity value, determined according to a test A, of less than 2%, said test A consisting in drawing the isothermal curve for water sorption at 20° C. which expresses the percentage of water uptake of a pulverulent product, dehydrated beforehand, which is placed in an atmosphere of variable relative humidity and at a temperature of 20° C., the hygroscopicity value being the percentage of water uptake at 60% equilibrium relative humidity,
- a specific surface, determined according to the BET method, at least equal to 2 m2/g.
Pulverulent sorbitol, the crystalline form of which is the γ form, having a sorbitol content higher than 95%, which exhibits a specific surface according to the BET method of greater than 2.5 m2/g.
The pulverulent sorbitol according to claim which exhibits:
- a melting point of between 98° C. and 99.5° C.,
- a crystalline organization in which copious fine needles of γ sorbitol without specific orientation are found at the surface of particles of variable shapes, in combination with regions with a more molten appearance.
Dependencies are inferred from the claim text.