|
|
|
|
|
| Bedoux, Gilles; Hardouin, Kevin; Marty, Christel; Taupin, Laure; Vandanjon, Laurent; Bourgougnon, Nathalie. |
| The photoadaptive responses of macroalgal communities to abiotic stresses have been studied, and a number of UV-absorbing molecules have been identified. Among these compounds, photoprotective compounds such as mycosporine-like amino acids and carotenoids have been isolated from various red macroalgal species. However, several substances still need to be characterized. We describe the preparation of photoprotective extracts obtained from Solieria chordalis. Two solvents, 2-octyl dodecanol and octyldodecyl ester of L-pyrrolidone carboxylic acid, were selected based on their cosmetic functions for performing an ultrasound-assisted extraction. The efficiency of extraction was monitored by spectrophotometry and in vitro photoprotective activity measurements.... |
| Tipo: Text |
Palavras-chave: Mycosporine-like amino acid; Palythenic acid; Photoprotective activity; Solieria chordalis. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00213/32376/30834.pdf |
| |
|
|
| Pardo, Sophie; Hess, Philipp; Simon, Elodie; Barille, Laurent; Geslin, Emmanuelle; Cognie, Bruno; Martin-jezequel, Véronique; Sechet, Véronique; Herrenknecht, Christine; Baron, Regis; Bourseau, Patrick; Amzil, Zouher; Masse, Anthony; Vandanjon, Laurent; Dumay, Justine; Lebeau, Thierry; Turpin, Vincent; Mondeguer, Florence; Petitgas, Pierre; Trouillet, Brice; Mercier, Denis; Guillotreau, Patrice; Guineberteau, Thierry; Mahevas, Stephanie; Schoefs, Franck; Sophie Pardo; Philipp Hess; Pauline Borgniet; Laurent Barillé; Emmanuelle Geslin; Bruno Cognie; Véronique Martin-Jezequel; Véronique Sechet; Christine Herrenknecht; Régis Baron; Patrick Bourseau; Zouher Amzil; Anthony Massé; Laurent Vandanjon; Justine Dumay; Thierry Lebeau; Vincent Turpin; Florence Mondeguer; Pierre Petitgas; Brice Trouillet. |
| COSELMAR, a 4-year project financed by the Région des Pays de la Loire at 2.1 M€, officially started on the 7th January 2013. The project is coordinated by Philipp Hess (IFREMER) and Sophie Pardo (Université de Nantes-LEMNA) and falls under the Federation for Research Institut Universitaire Mer et Littoral (IUML, FR CNRS 3473)*. COSELMAR has also been approved by the Scientific Council of the MSH Ange Guépin. COSELMAR is a research project uniting 5 research units of IFREMER and 11 laboratories of the Université de Nantes, along with academic partners, and national and international industries. The aim is to achieve a better understanding of the marine and coastal ecosystems and the associated resources. The project will also provide insights into risk... |
| Tipo: Text |
|
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00406/51793/52550.pdf |
| |
|
|
| Bourseau, Patrick; Chabeaud, Aurélie; Vandanjon, Laurent; Masse, Anthony; Jaouen, Pascal; Fleurence, Joël; Berge, Jean-pascal. |
| This review reports some interesting works on the recovery and fractionation by membrane techniques of marine compounds resulting from hydrolysis of fish by-products such as proteins or peptides, lipids or fatty acids, and carbohydrates. Ultrafiltration (UF) appears as the most widely used technique for such applications. It must be noted that only a few works deal with the optimization or the enhancement of processes for the recovery of added value molecules. Indeed, most of works use UF as a convenient and simple tool for solute fractionation, for this reason the influence of operating parameters on membrane separation efficiency is unfortunately seldom considered. When attention is paid in a study to the process development, it is specified in this... |
| Tipo: Text |
|
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-7408.pdf |
| |
|
|
| Bourseau, Patrick; Vandanjon, Laurent; Jaouen, Pascal; Chaplain-derouiniot, Maryse; Masse, Anthony; Guerard, Fabienne; Chabeaud, Aurélie; Fouchereau-peron, Martine; Le Gal, Yves; Ravallec-ple, Rosenn; Berge, Jean-pascal; Picot, Laurent; Piot, Jean -marie; Batista, Ireneu; Thorkelsson, Gudjon; Delannoy, Charles; Jakobsen, Greta; Johansson, Inger. |
| The production by enzymatic treatment of fish protein hydrolysates (FPH) is a promising route to add value to fisheries proteinic co-products (fish frames, heads etc.). Indeed, FPH possess good nutritional properties and biological activities for food and feed uses. Pressure-driven membrane separations such as ultrafiltration (UF) and nanofiltration (NF) can be used after the hydrolysis to, increase the specific activities of the FPH. This paper discusses the impact of a two-step UF/NF process producing four different fractions on two industrial FPH with different hydrolysis degrees. Fractionation is carried out in "realistic" conditions for an industrial process, on highly concentrated FPH solutions (about 100 g of dry matter/L) at a high volume reduction... |
| Tipo: Text |
Palavras-chave: Peptidic profile; Fractionation process; Membrane separation; Nanofiltration; Ultrafiltration; FPH; Fish protein hydrolysate. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6653.pdf |
| |
|
|
| Picot, Laurent; Ravallec, Rozenn; Fouchereau-peron, Martine; Vandanjon, Laurent; Jaouen, Pascal; Chaplain-derouiniot, Maryse; Guerard, Fabienne; Chabeaud, Aurelie; Legal, Yves; Martinez Alvarez, Oscar; Berge, Jean-pascal; Piot, Jean-marie; Batista, Irineu; Pires, Carla; Thorkelsson, Gudjon; Delannoy, Charles; Jakobsen, Greta; Johansson, Inger; Bourseau, Patrick. |
| BACKGROUND: Numerous studies have demonstrated that in vitro controlled enzymatic hydrolysis of fish and shellfish proteins leads to bioactive peptides. Ultrafiltration (UF) and/or nanofiltration (NF) can be used to refine hydrolysates and also to fractionate them in order to obtain a peptide population enriched in selected sizes. This study was designed to highlight the impact of controlled UF and NF on the stability of biological activities of an industrial fish protein hydrolysate (FPH) and to understand whether fractionation could improve its content in bioactive peptides. RESULTS: The starting fish protein hydrolysate exhibited a balanced amino acid composition, a reproducible molecular weight (MW) profile, and a low sodium chloride content, allowing... |
| Tipo: Text |
Palavras-chave: Fish protein hydrolysate; Ultrafiltration; Nanofiltration; Membrane separation; Fractionation process; Bioactive peptide. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00011/12217/9259.pdf |
| |
|
|
| Thorkelsson, G; Sigurgisladottir, S; Geirsdottir, M; Jóhannsson, R; Guerard, Fabienne; Chabeaud, Aurelie; Bourseau, Patrick; Vandanjon, Laurent; Jaouen, Pascal; Chaplain-derouiniot, M; Fouchereau-peron, Martine; Martinez Alvarez, Oscar; Le Gal, Yves; Ravallec-ple, Rozenn; Picot, Laurent; Berge, Jean-pascal; Delannoy, Charles; Jakobsen, Greta; Johansson, I; Batista, Ireneu. |
| Tipo: Text |
|
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/00056/16747/14184.pdf |
| |
|
|
| Vandanjon, Laurent; Vallet, Laurent; Le Glatin, Titouan; Deleris, Paul; Baron, Regis; Bourseau, Patrick; Dumay, Justine. |
| The use of surfactants to improve enzymatic hydrolysis of the macroalgae Sargassum muticum has been investigated. Visible absorption spectroscopy has been used to quantify the solubilization of both polysaccharides and phlorotannins in the hydrolysates. After total extraction, results showed that Sargassum muticum contained 2.74% (expressed in percent of the dry weight of the algae) of phlorotannins whose 32 % were in the cell wall. This result shows that it is important to access to the parietal phlorotannins. To reach this objective, we chose the enzymatic approach for destructurating the cell wall of the algae. The use of 5% dry weight (DW - 5% by weight of hydrolyzed algae) of an enzymatic mix containing a commercial beta-glucanase, a commercial... |
| Tipo: Text |
Palavras-chave: Brown macroalgae; Sargassum muticum; Enzymatic hydrolysis; Surfactants; Phlorotannins. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00350/46105/46073.pdf |
| |
|
|
|
