|
|
|
| Registros recuperados: 25 | |
|
| |
|
| |
|
| |
|
|
| Rederstorff, Emilie; Fatimi, Ahmed; Sinquin, Corinne; Ratiskol, Jacqueline; Merceron, Christophe; Vinatier, Claire; Weiss, Pierre; Colliec-jouault, Sylvia. |
| Polysaccharides are highly heat-sensitive macromolecules, so high temperature treatments are greatly destructive and cause considerable damage, such as a great decrease in both viscosity and molecular weight of the polymer. The technical feasibility of the production of exopolysaccharides by deep-sea bacteria Vibrio diabolicus and Alteromonas infernus was previously demonstrated using a bioproduct manufacturing process. The objective of this study was to determine which sterilization method, other than heat sterilization, was the most appropriate for these marine exopolysaccharides and was in accordance with bioprocess engineering requirements. Chemical sterilization using low-temperature ethylene oxide and a mixture of ionized gases (plasmas) was compared... |
| Tipo: Text |
Palavras-chave: Marine biotechnology; Polysaccharides; Sterilization procedures; Characterization; Molecular weight distribution; Rheology. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00027/13776/10913.pdf |
| |
|
|
| Senni, Karim; Gueniche, Farida; Changotade, Sylvie; Septier, Dominique; Sinquin, Corinne; Ratiskol, Jacqueline; Lutomski, Didier; Godeau, Gaston; Guezennec, Jean; Colliec-jouault, Sylvia. |
| Biopolymers produced by marine organisms can offer useful tools for regenerative medicine. Particularly, HE800 exopolysaccharide (HE800 EPS) secreted by a deep-sea hydrothermal bacterium displays an interesting glycosaminoglycan-like feature resembling hyaluronan. Previous studies demonstrated its effectiveness to enhance in vivo bone regeneration and to support osteoblastic cell metabolism in culture. Thus, in order to assess the usefulness of this high-molecular weight polymer in tissue engineering and tissue repair, in vitro reconstructed connective tissues containing HE800 EPS were performed. We showed that this polysaccharide promotes both collagen structuring and extracellular matrix settle by dermal fibroblasts. Furthermore, from the native HE800... |
| Tipo: Text |
Palavras-chave: Marine hydrothermal bacteria; Glycosaminoglycan-mimetic; Collagen; Matrix metalloproteinases; Dermal fibroblast; Polysaccharides; Tissue engineering. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00138/24973/23072.pdf |
| |
| Registros recuperados: 25 | |
|
|
|
