Abstract:
Disclosed is a method for producing biomass by culturing cells in mixotrophic conditions, in particular in the presence of discontinuous and/or variable lighting conditions, and/or in heterotrophic conditions, making it possible to obtain an increase in both the cellular concentration and the production of molecules of interest.
Abstract:
A reactor includes a tank intended to contain a mass to be treated, for example formed from microorganisms, an assembly that rotates about an axis to ensure stirring of this mass, and a plurality of illumination sources to assist the treatment of this mass. The tank has an inner wall with plates fixed thereto, whose planes are oriented towards the axis of the rotating assembly and parallel to same, so as to prevent the formation of a vortex within the mass under the action of the rotating assembly; the illumination sources are carried by the plates, being encapsulated, with at least the part of the plates that carries them, in a material compatible with the mass treated and in a thickness that allows light to be diffused into the tank. This configuration may be scaled, while keeping the ratio of the illumination surface relative to the tank volume approximately constant.
Abstract:
The invention is in the field of cultures of microalgae, in particular thraustochytrids. The invention relates to a protein-rich biomass of thraustochytrids, to a method of obtaining said biomass, and to the uses thereof.
Abstract:
Disclosed is a method for culture of microalgae, advantageously of the genus Crypthecodinium having a gene coding for the small 18s ribosomal RNA subunit having a genetic similarity of at least 96% with the same gene of the strain of the species Crypthecodinium cohnii deposited in the CCAP (Culture Collection of Algae and Protozoa) under number CCAP 1104/3 in a defined chemical medium.
Abstract:
Strains of microalgae belonging to the Scenedesmus genus grown in mixotrophic mode enable the production of lipids, in particular lutein. Methods for selecting and culturing the microalgae strains using variable and/or discontinuous supply of light, in particular in the form of flashes, are provided.
Abstract:
A method for culturing a protist of the Aurantiochytrium mangrovei genus. The genus is characterized genetically and by virtue of the lipid profile thereof. The method makes it possible to obtain a high biomass yield and a lipid, and more particularly docosahexaenoic acid (DHA), enrichment of the protists thus cultured. The development of a culture medium allows the production, at high cell density, of a DHA-rich protest of the Aurantiochytrium mangrovei genus. The medium is chemically defined at low sodium ion (Na+) and chloride ion (Cl−) content.
Abstract:
This relates to the field of culture of algae, in particular microalgae. Disclosed is a method for culture of algae, advantageously of microalgae. The particular culture conditions in terms of lighting and nutrients enables a biomass to be obtained which is constituted of microalgae having a quantity of chlorophyll that is at least low, advantageously very low, or even zero and a high quantity of antioxidant agents.
Abstract:
New strains of microalgae belonging to the Nitzschia genus allow high-yield production of lipids such as docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), and/or carotenoids such as fucoxanthin. Biomass containing the microalgae can be charged with fucoxanthin representing more than 0.2% by weight of the dry matter.
Abstract:
The present invention relates to a genetically engineered algae strain in which the expression of the CGI-58 gene or homologous gene thereof is silenced. The present invention further relates to a method of triacylglycerol accumulation using said genetically engineered diatom and/or diatom strain.
Abstract:
Disclosed are novel strains of protists belonging to the Aurantiochytrium genus that allow the high yield production of lipids and carotenoids, in particular docosahexaenoic acid (DHA) and canthaxanthin and/or astaxanthin, in mixotrophic mode, in particular, using variable and/or discontinuous provision of light, in particular in the form of flashes.