Universidade De Santiago De Compostela

Algaenergy, S.a.

Fundacion Pedro Barrie De La Maza, Conde De Fenosa

Ana María Otero Casal

Manuel Romero Bernárdez

Hugo Alexandre Milhazes Da Cunha

Juan Pablo Jiménez Martín

Isabel Freire Fontáns

Celia Mayer Mayer

María Segura Fornieles

Arturo Roca Rivada

Manuel Romero BERNÁRDEZ

Process for enriching microalgal biomass, in particular of the genus, with different polyunsaturated fatty acids, primarily docosahexaenoic acid (22:6 n-3, DHA), using oils that are rich in these fatty acids. The process comprises the following steps: The process allows for the simultaneous enrichment of microalgal biomass of the genuswith eicosapentaenoic acid (20:5 n-3) (EPA) and docosahexaenoic acid (22:6 n-3) (DHA), to obtain a minimum EPA:DHA weight ratio of 10:1, with an EPA content of at least 10% of the total fatty acid content.

Method for the enrichment of microalgae biomass in polyunsaturated fatty acids

The invention relates to the cloning, sequencing and characterization of the gene responsible for Quorum Quenching (QQ) activity against Quorum Sensing (QS) signals of thesp. strain 20J (CECT7426). Said gene encodes a peptide having at least lactonase activity with a percentage of identity less than 38% with the lactonases described up until now for other species, as well as the sequences of the homologous genes present in other species of the genus. Said peptide shows a broad spectrum of activity degrading optionally substituted N-acyl-homoserine lactones (AHLs) of 4-14 carbon atoms in the side chain thereof, is active at pH comprised between 3 and 9, proteinase K- and chymotrypsin-resistant and does not interact with &#x3b2;-lactam antibiotics.

Peptide with quorum-sensing inhibitory activity, polynucleotide that encodes said peptide, and the uses thereof

Growing community of inventors

Santiago de Compostela, Spain

Ana María Otero Casal