10.01.04
Kemin Foods, Des Moines, IA, has obtained a patent from the Canadian Intellectual Property Office for the production of purified, crystalline lutein. The Canadian patent—no. 2239971—is a 20-year patent in Canada granted to Kemin for the process of “forming, isolating and purifying xanthophyll crystals, preferably lutein, from marigold flower petals...The substantially pure xanthophyll crystals so obtained are suitable for human consumption,” according to the patent abstract.