Extraction and Purification of a Phycocolloid from Chaetomorpha aerea |
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| Authors: | Dennis Niedrist Aurelie Rousset Ronan Pierre Niklas Papenkordt Venkatram Prasad Shastri Aurelien Forget |
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| Institution: | 1. Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, 79104 Freiburg, Germany;2. Centre d'Étude et de Valorisation des Algues, Pleubian, 26210 France;3. Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, 79104 Freiburg, Germany
Centre for Biological Signalling Studies, University of Freiburg, 79104 Freiburg, Germany |
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| Abstract: | Phycocolloids are gelling polysaccharides extracted from algae that have found applications as microbiological culture media, food thickener, and cosmetic rheological modifiers. The extensive use of algae species that have not yet been domesticated has led to overexploitation or supply shortages. Thus, extending the library of phycocolloids would permit to support the industrial changes toward renewable polymer feedstocks but if the source of algae is limited to wild algae species, this may raise issue on the scalability and hinder the creation of a reliable supply chain. In this study, a new phycocolloid extracted from Chaetomorpha aerea, a green seaweed that can be cultivated in open ponds, is identified. Through elucidation of its chemical structure, a gelation mechanism for an extracted sulfated polysaccharide fraction that form stable, transparent hydrogels that can be used for microbiological culture, is proposed |
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| Keywords: | algae hydrogels microbiology polysaccharides |
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