Abstract
An amorphous solid dispersion technique, in which hydrophobic drug molecules are dispersed in an amorphous matrix comprised solely of a sugar, was applied to curcumin that has excellent physiological functions. The sole-amorphous-sugar-based solid dispersion (SAS-SD) of curcumin was prepared by vacuum foam drying from methanol, using various disaccharides as the drug carrier-forming component. Aqueous dissolution of curcumin from the SAS-SD showed “spring-and-parachute” shape profile and was markedly increased when a sugar (α-maltose or trehalose) was added in a composition range ≥100 g-sugar/g-curcumin. Further dissolution was achieved by heating the SAS-SD at close to and above the melting points of curcumin.
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