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Article

“Neptune Balls” Polysaccharides: Disentangling the Wiry Seagrass Detritus

Department of Pharmaceutical Biology, Pharmaceutical Institute, Faculty of Mathematics and Natural Sciences, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
Academic Editor: Ioana Chiulan
Polymers 2021, 13(24), 4285; https://doi.org/10.3390/polym13244285
Received: 10 November 2021 / Revised: 27 November 2021 / Accepted: 3 December 2021 / Published: 7 December 2021
(This article belongs to the Special Issue Analysis and Characterization of Renewable Polymers)
Each year, high amounts of dead seagrass material are washed ashore at beaches world-wide. In the Mediterranean region, the seagrass Posidonia oceanica is responsible for huge agglomerates of ball-like seagrass litter. As these are often removed due to touristic reasons, a reuse method would be a step towards a more ecologically oriented society. In this study, the main polysaccharide components were analyzed, in order to propose possible usage options. To do this, different aqueous fractions were extracted, analyzed by classical carbohydrate analysis methods (GC-FID/MS, colorimetric assay and elemental analysis), and purified by ion-exchange chromatography, as well as selective precipitation with a detecting agent for highly glycosylated glycoproteins. The obtained purified fractions were analyzed in detail and a linkage-type analysis of the most promising extract was conducted via permethylation. Only low amounts of glycoproteins, as well as medium amounts of the characteristic apiogalacturonan were likely to be present, while xylan seemed to be the most abundant polysaccharide in most fractions. A partial structural proposal showed general accordance with land plant xylans, presenting reuse options in the field of biofuel and bioplastic generation. View Full-Text
Keywords: Neptune balls; Posidonia oceanica; seagrass; xylan; biofuel; reuse; polysaccharides; carbohydrate composition; ATR-FT-IR; GC-MS Neptune balls; Posidonia oceanica; seagrass; xylan; biofuel; reuse; polysaccharides; carbohydrate composition; ATR-FT-IR; GC-MS
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MDPI and ACS Style

Pfeifer, L. “Neptune Balls” Polysaccharides: Disentangling the Wiry Seagrass Detritus. Polymers 2021, 13, 4285. https://doi.org/10.3390/polym13244285

AMA Style

Pfeifer L. “Neptune Balls” Polysaccharides: Disentangling the Wiry Seagrass Detritus. Polymers. 2021; 13(24):4285. https://doi.org/10.3390/polym13244285

Chicago/Turabian Style

Pfeifer, Lukas. 2021. "“Neptune Balls” Polysaccharides: Disentangling the Wiry Seagrass Detritus" Polymers 13, no. 24: 4285. https://doi.org/10.3390/polym13244285

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