Littérature scientifique sur le sujet « Biopolymers from marine and bacterial origins »
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Articles de revues sur le sujet "Biopolymers from marine and bacterial origins"
Cottrell, Matthew T., Jessica A. Moore et David L. Kirchman. « Chitinases from Uncultured Marine Microorganisms ». Applied and Environmental Microbiology 65, no 6 (1 juin 1999) : 2553–57. http://dx.doi.org/10.1128/aem.65.6.2553-2557.1999.
Texte intégralTassara, Eleonora, Caterina Oliveri, Luigi Vezzulli, Carlo Cerrano, Lian Xiao, Marco Giovine et Marina Pozzolini. « 2D Collagen Membranes from Marine Demosponge Chondrosia reniformis (Nardo, 1847) for Skin-Regenerative Medicine Applications : An In Vitro Evaluation ». Marine Drugs 21, no 8 (28 juillet 2023) : 428. http://dx.doi.org/10.3390/md21080428.
Texte intégralSobecky, Patricia A., Tracy J. Mincer, Michelle C. Chang, Aresa Toukdarian et Donald R. Helinski. « Isolation of Broad-Host-Range Replicons from Marine Sediment Bacteria ». Applied and Environmental Microbiology 64, no 8 (1 août 1998) : 2822–30. http://dx.doi.org/10.1128/aem.64.8.2822-2830.1998.
Texte intégralValdés-Castro, Valentina, Humberto E. González, Ricardo Giesecke, Camila Fernández et Verónica Molina. « Assessment of Microbial Community Composition Changes in the Presence of Phytoplankton-Derived Exudates in Two Contrasting Areas from Chilean Patagonia ». Diversity 14, no 3 (7 mars 2022) : 195. http://dx.doi.org/10.3390/d14030195.
Texte intégralMostafa, Yasser S., Sulaiman A. Alrumman, Kholod A. Otaif, Saad A. Alamri, Mohamed S. Mostafa et Taher Sahlabji. « Production and Characterization of Bioplastic by Polyhydroxybutyrate Accumulating Erythrobacter aquimaris Isolated from Mangrove Rhizosphere ». Molecules 25, no 1 (1 janvier 2020) : 179. http://dx.doi.org/10.3390/molecules25010179.
Texte intégralRamesh, Chatragadda, Bhushan Rao Tulasi, Mohanraju Raju, Narsinh Thakur et Laurent Dufossé. « Marine Natural Products from Tunicates and Their Associated Microbes ». Marine Drugs 19, no 6 (26 mai 2021) : 308. http://dx.doi.org/10.3390/md19060308.
Texte intégralZhang, Hongcai, Zekai Wang, Xi Yu, Junwei Cao, Tianqiang Bao, Jie Liu, Chengwen Sun, Jiahua Wang et Jiasong Fang. « The Phylogeny and Metabolic Potentials of a Lignocellulosic Material-Degrading Aliiglaciecola Bacterium Isolated from Intertidal Seawater in East China Sea ». Microorganisms 12, no 1 (11 janvier 2024) : 144. http://dx.doi.org/10.3390/microorganisms12010144.
Texte intégralChampion, Marie, Emilie Portier, Karine Vallée-Réhel, Isabelle Linossier, Eric Balnois, Guillaume Vignaud, Xavier Moppert, Claire Hellio et Fabienne Faÿ. « Anti-Biofilm Activity of a Hyaluronan-like Exopolysaccharide from the Marine Vibrio MO245 against Pathogenic Bacteria ». Marine Drugs 20, no 11 (21 novembre 2022) : 728. http://dx.doi.org/10.3390/md20110728.
Texte intégralGuerra, LV, F. Savergnini, FS Silva, MC Bernardes et MAC Crapez. « Biochemical and microbiological tools for the evaluation of environmental quality of a coastal lagoon system in Southern Brazil ». Brazilian Journal of Biology 71, no 2 (mai 2011) : 461–68. http://dx.doi.org/10.1590/s1519-69842011000300016.
Texte intégralWibowo, Joko Tri, Asep Bayu, Widya Dwi Aryati, Carla Fernandes, Arry Yanuar, Anake Kijjoa et Masteria Yunovilsa Putra. « Secondary Metabolites from Marine-Derived Bacteria with Antibiotic and Antibiofilm Activities against Drug-Resistant Pathogens ». Marine Drugs 21, no 1 (12 janvier 2023) : 50. http://dx.doi.org/10.3390/md21010050.
Texte intégralThèses sur le sujet "Biopolymers from marine and bacterial origins"
Bascans, Élodie. « Des voies durables et respectueuses de l'environnement pour la génération de nouveaux assemblages de biopolymères et la glycosylation de composés marins - selon une approche de biomimétisme ». Electronic Thesis or Diss., Pau, 2023. http://www.theses.fr/2023PAUU3035.
Texte intégralTo face the adverse impacts of conventional chemistry and fossil-based products on human health and ecosystems, sustainable chemistry (biosynthesis) and bio-based (macro)molecules appear as endless sources of inspiration and innovation. Driven by bioinspired approaches, this project consisted of taking advantage of bacterial enzymes synthesizing polysaccharides of glucosyl units from sucrose to attempt two objectives: (1) the glucosylation of marine molecules for the development of novel UV filter products; and (2) the assembly of marine and bacterial polysaccharides physically cross-linked by tailor-made proteins. The first strategy is inspired by UV-absorbing molecules found in fish mucus and eyes while the second one is inspired by associations found in nature like bacterial peptidoglycans or crustacean crab exoskeleton. In the field of new UV filter products, the target molecules were mycosporines, secondary metabolites found in a wide variety of organisms. They are recognized for their high UV-absorbing properties and antioxidant activity. The aim was to mimic the natural glycosylation of mycosporines by assessing the feasibility of glucosylating these compounds with -transglucosylases from GH70 family and modulating the size of the carbohydrate moiety. Using the mycosporine-serinol (MSer(OH)) as starting molecule, one enzyme stood out from the twenty screened candidates with a remarkable conversion rate of 95%. The glucosylated products were characterized by NMR and mass spectroscopy, showing the addition of 1 to 3 glucosyl units, with the predominant product having two glucosyl units on the same carbon. In a second step, with the objective to extend the glucidic backbone, an enzymatic cascade was developed, again relying on the use of GH70 enzymes and sucrose as glucosyl donor. A wide range of glucosylated-MSer(OH) compounds were synthesized, varying both in linkage specificity and chain length (10 < DP < ~750,000). Interestingly, their photostability and antioxidant capacity are equivalent to those of free MSer(OH) or well-known antioxidants, and therefore, could compete commercial sunscreens. Notably, a MSer(OH) grafted to a dextran chain of more than 108 g/mol exhibited interesting rheological properties, very promising as compounds combining both UV filter capacity and texturizing properties for medical or cosmetic formulations. Regarding the second research axis, dextran, chitin, chitosan, and agarose were selected for their wide availability and unique properties in the field of biomaterials, especially for medical applications. The development of physical hydrogels by assembling these biopolymers relied on the development of protein cross-linkers named "bridges". Two libraries of four bridges, each with a specific affinity for a polymer, were designed by the association of two Carbohydrate Binding Modules (CBM) from enzymes that degrade or synthesize these polysaccharides, linked by a peptide sequence more or less flexible. These tailor-made proteins were recombinantly produced in E. coli and purified, and their affinities for their respective biopolymer was biochemically confirmed. Then, different hydrogels were made by assembling polysaccharides with these bridges, resulting in a visual difference in terms of texture and viscosity. These observations were supported by rheology and microscopy analyses. Notably, these dynamic hydrogels are shear-thinning and self-healing, which is very interesting for injectable hydrogels for delivering therapeutics. Overall, these first promising proofs of concept showed the potential of these novel bioinspired and innovative materials for different applications. The most interesting ones are envisioned in the field of healthcare. They could enable formulations that are respectful of both human health and ecosystems
Chapitres de livres sur le sujet "Biopolymers from marine and bacterial origins"
Murphy, Denis, et Tanai Cardona. « The bacterial origins of photosynthesis ». Dans Photosynthetic Life Origin, Evolution, and Future. Oxford University Press, 2022. http://dx.doi.org/10.1093/hesc/9780198815723.003.0002.
Texte intégralThomas, Jibu, et S. Jerusha Pealin Grace. « Reconnoitering Cell Factories of Marine Algae for Antimicrobials ». Dans Frontiers in Antimicrobial Agents, 131–46. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815080148123030009.
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