Patent ID: 7150890
Filing Date: 2006-12-19
Classification: A61K,C12P

Abstract:
1. A process for obtaining xanthophylls from marigold petals, the process comprising: drying harvested marigold petals at a predetermined temperature range for a predetermined time period to produce dried petals; saponifying the dried petals to obtain saponified extracts; dissolving the saponified extracts in water to produce a mixture including emulsions containing from 1 to 20 grams of carotenoids per kilogram of the mixture; adding at least one metallic halide to the mixture to adjust a pH of the mixture such that the pH is between about 1 and about 6; filtering the pH-adjusted mixture to remove substantially all liquid from the mixture to produce a resultant solid; and washing the resultant solid with a polar solvent to recover desired xanthophylls.