The present invention describes an improved commercial process for the
production of carotenoid-cyclodextrin complexes and formulation of the
complex for human ingestion. Complexation with cyclodextrins (e.g.,
.alpha.-cyclodextrin, .beta.-cyclodextrin, .gamma.-cyclodextrin, or
HP-.beta.-cyclodextrin) significantly improves the uptake of carotenoids
(e.g., lycopene, lutein, or zeaxanthin) and their mixtures in vitro. The
method for making such complexes includes forming a
carotenoid/cyclodextrin complex; freezing drying said
carotenoid/cyclodextrin complex; and blending said freeze-dried
carotenoid/cyclodextrin complex with a mixture of lecithin and a
vegetable oil or a vegetable oil suitable for soft gelatin capsules. The
cyclodextrin/carotenoid complex can be formed in a molar ratio of between
about 0.5:1.0 and 10:1. In vivo, in a human study, the
lutein/.gamma.-cyclodextrin complex formulated in lecithin-oil or oil
showed a better absorption of lutein, as compared to the free lutein-oil
formulation.