Process for the purification of marigold xanthophylls
First Claim
Patent Images
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.
1 Assignment
0 Petitions
Accused Products
Abstract
Description of a process to extract, saponify and purify lutein and zeaxantine contained in Marigold flowers free from any genetic manipulation, which have been harvested by hand and dried upon weather so that it neither contains epoxicarotenoids or cis-carotenoids. Fatty acids are removed as its metallic salts and carotenoids are recovered using a polar solvent.
35 Citations
23 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
Specification