The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2016
Filed:
Aug. 07, 2013
Roquette Freres, Lestrem, FR;
Philippe Looten, Lomme, FR;
Samuel Patinier, Quesnoy-sur-Deule, FR;
Eric Francais, Voinemont, FR;
Michel Perrut, Villers les Nancy, FR;
Aurore Satre-Buisson, Champigneulles, FR;
ROQUETTE FRERES, Lestrem, FR;
Abstract
The invention relates to a method for preparing a composition rich in lutein produced by microalgae, particularly microalgae belonging to thegenus, more specifically produced by, characterized in that said method includes the sequence of the following steps: 1) preparing a cell lysate from the microalgae biomass; 2) treating the lysed microalgae biomass with a polar solvent, preferably ethyl acetate, in order to obtain an oleoresin containing the lutein and the lipids from the initial biomass; 3) extracting the oleoresin obtained in step 2) by means of a non-polar solvent, here a fluid at supercritical pressure, in order to obtain a fraction rich in non-polar lipids, mainly consisting of triglycerides, and an insoluble fraction rich in lutein; and 4) recovering the thus lutein-enriched fraction.