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Tytuł:
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Rheological characterization of Porphyridium sordidum and Porphyridium purpureum exopolysaccharides.
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Autorzy:
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Medina-Cabrera EV; Technical University of Munich, Campus for Biotechnology and Sustainability, 94315, Straubing, Germany. Electronic address: .
Gansbiller M; Technical University of Munich, Campus for Biotechnology and Sustainability, 94315, Straubing, Germany. Electronic address: .
Rühmann B; Technical University of Munich, Campus for Biotechnology and Sustainability, 94315, Straubing, Germany. Electronic address: .
Schmid J; Technical University of Munich, Campus for Biotechnology and Sustainability, 94315, Straubing, Germany; Norwegian University of Science and Technology, Department of Biotechnology and Food Science, Sem Sælands vei 6-8, 7491, Trondheim, Norway. Electronic address: .
Sieber V; Technical University of Munich, Campus for Biotechnology and Sustainability, 94315, Straubing, Germany; Catalysis Research Center, Technical University of Munich, 85748, Garching, Germany; Fraunhofer IGB, Branch BioCat, 94315, Straubing, Germany; The University of Queensland, School of Chemistry and Molecular Biosciences, 68 Cooper Road, St. Lucia, 4072, Australia. Electronic address: .
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Źródło:
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Carbohydrate polymers [Carbohydr Polym] 2021 Feb 01; Vol. 253, pp. 117237. Date of Electronic Publication: 2020 Oct 20.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: <1992-> : Barking : Elsevier Applied Science Publishers
Original Publication: London [Eng.] : Applied Science Publishers, c1981-
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MeSH Terms:
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Plant Extracts/*chemistry
Polysaccharides/*chemistry
Porphyridium/*chemistry
Rheology/*methods
Biomass ; Biopolymers/chemistry ; Calcium Chloride/chemistry ; Cations/chemistry ; Culture Media ; Hot Temperature ; Porphyridium/classification ; Salinity ; Salts/chemistry ; Seaweed/chemistry ; Sodium Chloride/chemistry
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Contributed Indexing:
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Keywords: P. purpureum EPS; P. sordidum EPS; Rheological properties; Salts; Stability; Sulfate
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Substance Nomenclature:
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0 (Biopolymers)
0 (Cations)
0 (Culture Media)
0 (Plant Extracts)
0 (Polysaccharides)
0 (Salts)
451W47IQ8X (Sodium Chloride)
M4I0D6VV5M (Calcium Chloride)
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Entry Date(s):
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Date Created: 20201206 Date Completed: 20210416 Latest Revision: 20210416
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Update Code:
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20240104
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DOI:
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10.1016/j.carbpol.2020.117237
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PMID:
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33278993
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Porphyridium exopolysaccharides (EPSs), which contain sulfate and methyl groups, have a similar potential for use in multiple industrial applications as macroalgae counterparts but lack detailed characterization. For this reason, we produced 0.21 g L -1 of P. sordidum EPS and 0.17 g L -1 P. purpureum EPS, followed by a thorough rheological characterization in respect to their differences in monomer composition, sulfate concentrations and methyl patterns. Furthermore, the effect of NaCl and CaCl 2 was evaluated, and the effect of high salinity media on the rheological properties of the biopolymers was analyzed. Both Porphyridium EPSs show a remarkable stability at high temperature and under the effect of mono- and divalent cations, and high salinity cultivation medium, which was evidenced by the rheological properties of the EPS. This feature is not displayed by many carbohydrate polymers, making it possible to enrich current applications in which EPS are used.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
