Roquette Freres

Roquette Frares

Philippe Looten

Samuel Patinier

Pierrick Duflot

Michel Perrut

Catherine Fouache

Bernard Pora

Jean-Bernard Leleu

Serge Comini

Laurent Segueilha

Eric Francais

Bernard Caulier

Yun Qian

Vincent Perrut

Aurore Satre-Buisson

Patrick Haon

The invention relates to a method for the production of squalene from microalgae belonging to the family ofsp., preferably at concentrations of between 2 and 12 g per 100 g of dry biomass. The method is characterized in that it comprises steps consisting in: culturing microalgae belonging to the family ofsp. at a temperature of between 25 and 35&#xb0; C., preferably between 28 and 32&#xb0; C., and more preferably of the order of 30&#xb0; C.; and adding between 1 and 1000 &#x3bc;g of vitamin B12 per liter of culture medium to said culture medium.

Method for the preparation and extraction of squalene from microalgae

The invention relates to a method for preparing a composition that is very rich in squalene produced by fermentation of micro-organisms. The method is characterized in that it comprises a purification step selected from the group including: supercritical CO2 extraction in a multi-stage counter-current fractionation column with extract reflux, and short-path molecular distillation.

Method for refining squalene produced by microalgae

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.

Method for preparing a composition rich in lutein produced by microalgae

The invention concerns a method of preparing an oil enriched with ethyl esters of DHA produced by fermenting microorganisms, characterized in that it comprises a step of purification by so-called 'short path' molecular distillation.

Method for continuously enriching an oil produced by microalgae with ethyl esters of DHA

The subject matter of the invention is branched maltodextrins, characterised by the fact that they present between 22% and 35%, preferably between 27 and 34%, glucosidic linkages 1&rarr;6, a content of reducing sugars lower than 20%, a polymolecularity index lower than 5 and a number average molecular weight Mn at most equal to 4500 g/mole, and the method of obtaining these branched maltodextrins.

Branched maltodextrins and method of preparing them

The invention concerns modified maltitol crystals of particular forms, one pyramidal, the other prismatic. It further concerns crystalline compositions containing them and processes for their preparation.

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Lomme, France

Philippe Looten