Bioprospecting for industrially relevant exopolysaccharide-producing cyanobacteria under Portuguese simulated climate.

Autor: Cruz JD; Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal.; Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal., Delattre C; Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, 63000, Clermont-Ferrand, France.; Institut Universitaire de France (IUF), 75005, Paris, France., Felpeto AB; Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal., Pereira H; GreenCoLab - Associação Oceano Verde, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal., Pierre G; Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, 63000, Clermont-Ferrand, France., Morais J; Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal.; Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal., Petit E; UMRT INRAE 1158 BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), Université de Picardie Jules Verne, IUT d'Amiens, Avenue des Facultés, Le Bailly, 80025, Amiens, France., Silva J; R&D Department, Allmicroalgae Natural Products S.A, Rua 25 de Abril 19, 2445-287, Pataias, Portugal., Azevedo J; Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal., Elboutachfaiti R; UMRT INRAE 1158 BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), Université de Picardie Jules Verne, IUT d'Amiens, Avenue des Facultés, Le Bailly, 80025, Amiens, France., Maia IB; CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139, Gambelas, Faro, Portugal., Dubessay P; Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, 63000, Clermont-Ferrand, France., Michaud P; Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, 63000, Clermont-Ferrand, France., Vasconcelos V; Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal. vmvascon@fc.up.pt.; Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal. vmvascon@fc.up.pt.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 Aug 21; Vol. 13 (1), pp. 13561. Date of Electronic Publication: 2023 Aug 21.
DOI: 10.1038/s41598-023-40542-6
Abstrakt: Cyanobacterial exopolysaccharides (EPS) are potential candidates for the production of sustainable biopolymers. Although the bioactive and physicochemical properties of cyanobacterial-based EPS are attractive, their commercial exploitation is limited by the high production costs. Bioprospecting and characterizing novel EPS-producing strains for industrially relevant conditions is key to facilitate their implementation in various biotechnological applications and fields. In the present work, we selected twenty-five Portuguese cyanobacterial strains from a diverse taxonomic range (including some genera studied for the first time) to be grown in diel light and temperature, simulating the Portuguese climate conditions, and evaluated their growth performance and proximal composition of macronutrients. Synechocystis and Cyanobium genera, from marine and freshwater origin, were highlighted as fast-growing (0.1-0.2 g L -1  day -1 ) with distinct biomass composition. Synechocystis sp. LEGE 07367 and Chroococcales cyanobacterium LEGE 19970, showed a production of 0.3 and 0.4 g L -1 of released polysaccharides (RPS). These were found to be glucan-based polymers with high molecular weight and a low number of monosaccharides than usually reported for cyanobacterial EPS. In addition, the absence of known cyanotoxins in these two RPS producers was also confirmed. This work provides the initial steps for the development of cyanobacterial EPS bioprocesses under the Portuguese climate.
(© 2023. Springer Nature Limited.)
Databáze: MEDLINE
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