Crude fucoidan content in two North Atlantic kelp species, Saccharina latissima and Laminaria digitata—seasonal variation and impact of environmental factors
Fucoidans are sulphated fucose-rich polysaccharides predominantly found in the cell walls of brown algae. The bioactive properties of fucoidans attract increasing interest from the medico-pharmaceutical industries and may drive an increase in demand of brown algae biomass. In nature, the biochemical...
Published in: | Journal of Applied Phycology |
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Online Access: | https://zenodo.org/record/851376 https://doi.org/10.1007/s10811-017-1204-5 |
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ftzenodo:oai:zenodo.org:851376 2023-05-15T17:32:03+02:00 Crude fucoidan content in two North Atlantic kelp species, Saccharina latissima and Laminaria digitata—seasonal variation and impact of environmental factors Annette Bruhn Tina Janicek Dirk Manns Mette Møller Nielsen Thorsten Johannes Skovbjerg Balsby Anne S. Meyer Michael Bo Rasmussen Xiaoru Hou Bodo Saake Cordula Göke Anne Belinda Bjerre 2017-06-11 https://zenodo.org/record/851376 https://doi.org/10.1007/s10811-017-1204-5 unknown info:eu-repo/grantAgreement/EC/H2020/654010/ https://zenodo.org/record/851376 https://doi.org/10.1007/s10811-017-1204-5 oai:zenodo.org:851376 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode Cultivation Ecotypes Exposure Irradiance Laminariales Nutrients Salinity Storage carbohydrates info:eu-repo/semantics/article publication-article 2017 ftzenodo https://doi.org/10.1007/s10811-017-1204-5 2023-03-10T23:57:49Z Fucoidans are sulphated fucose-rich polysaccharides predominantly found in the cell walls of brown algae. The bioactive properties of fucoidans attract increasing interest from the medico-pharmaceutical industries and may drive an increase in demand of brown algae biomass. In nature, the biochemical composition of brown algae displays a seasonal fluctuation driven by environmental factors and endogenous rhythms. To cultivate and harvest kelps with high yields of fucoidans, knowledge is needed on seasonal variation and impact of environmental conditions on the fucoidan content of brown algae. The relations between the fucoidan content and key environmental factors (irradiance, nutrient availability, salinity and exposure) were examined by sampling natural populations of the common North Atlantic kelps, Saccharina latissima and Laminaria digitata, over a full year at Hanstholm in the North Sea and Aarhus in the Kattegat. In addition, laboratory experiments were carried out isolating the effects of the single factors. The results demonstrated that (1) seasonal variation alters the fucoidan content by a factor of 2–2.6; (2) interspecific differences exist in the concentrations of crude fucoidan (% of dry matter): L. digitata (11%) > S. latissima (6%); and (3) the effects of single environmental factors were not consistent between species or between different conspecific populations. The ambiguous response to single environmental factors complicates prospective directions for manipulating an increased content of fucoidan in a cultivation scenario and emphasizes the need for knowledge on performance of local kelp ecotypes. This study was carried out as part of the MacroAlgae Biorefinery (MAB3), the MacroAlgae Biorefinery 4 (MAB4) and the Macrofuels projects, funded by The Danish Council for Strategic Research, the Innovation Fund Denmark and the European Union's Horizon 2020 research and innovation programme under grant agreement no. 654010, respectively. Article in Journal/Newspaper North Atlantic Zenodo Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Journal of Applied Phycology 29 6 3121 3137 |
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Open Polar |
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ftzenodo |
language |
unknown |
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Cultivation Ecotypes Exposure Irradiance Laminariales Nutrients Salinity Storage carbohydrates |
spellingShingle |
Cultivation Ecotypes Exposure Irradiance Laminariales Nutrients Salinity Storage carbohydrates Annette Bruhn Tina Janicek Dirk Manns Mette Møller Nielsen Thorsten Johannes Skovbjerg Balsby Anne S. Meyer Michael Bo Rasmussen Xiaoru Hou Bodo Saake Cordula Göke Anne Belinda Bjerre Crude fucoidan content in two North Atlantic kelp species, Saccharina latissima and Laminaria digitata—seasonal variation and impact of environmental factors |
topic_facet |
Cultivation Ecotypes Exposure Irradiance Laminariales Nutrients Salinity Storage carbohydrates |
description |
Fucoidans are sulphated fucose-rich polysaccharides predominantly found in the cell walls of brown algae. The bioactive properties of fucoidans attract increasing interest from the medico-pharmaceutical industries and may drive an increase in demand of brown algae biomass. In nature, the biochemical composition of brown algae displays a seasonal fluctuation driven by environmental factors and endogenous rhythms. To cultivate and harvest kelps with high yields of fucoidans, knowledge is needed on seasonal variation and impact of environmental conditions on the fucoidan content of brown algae. The relations between the fucoidan content and key environmental factors (irradiance, nutrient availability, salinity and exposure) were examined by sampling natural populations of the common North Atlantic kelps, Saccharina latissima and Laminaria digitata, over a full year at Hanstholm in the North Sea and Aarhus in the Kattegat. In addition, laboratory experiments were carried out isolating the effects of the single factors. The results demonstrated that (1) seasonal variation alters the fucoidan content by a factor of 2–2.6; (2) interspecific differences exist in the concentrations of crude fucoidan (% of dry matter): L. digitata (11%) > S. latissima (6%); and (3) the effects of single environmental factors were not consistent between species or between different conspecific populations. The ambiguous response to single environmental factors complicates prospective directions for manipulating an increased content of fucoidan in a cultivation scenario and emphasizes the need for knowledge on performance of local kelp ecotypes. This study was carried out as part of the MacroAlgae Biorefinery (MAB3), the MacroAlgae Biorefinery 4 (MAB4) and the Macrofuels projects, funded by The Danish Council for Strategic Research, the Innovation Fund Denmark and the European Union's Horizon 2020 research and innovation programme under grant agreement no. 654010, respectively. |
format |
Article in Journal/Newspaper |
author |
Annette Bruhn Tina Janicek Dirk Manns Mette Møller Nielsen Thorsten Johannes Skovbjerg Balsby Anne S. Meyer Michael Bo Rasmussen Xiaoru Hou Bodo Saake Cordula Göke Anne Belinda Bjerre |
author_facet |
Annette Bruhn Tina Janicek Dirk Manns Mette Møller Nielsen Thorsten Johannes Skovbjerg Balsby Anne S. Meyer Michael Bo Rasmussen Xiaoru Hou Bodo Saake Cordula Göke Anne Belinda Bjerre |
author_sort |
Annette Bruhn |
title |
Crude fucoidan content in two North Atlantic kelp species, Saccharina latissima and Laminaria digitata—seasonal variation and impact of environmental factors |
title_short |
Crude fucoidan content in two North Atlantic kelp species, Saccharina latissima and Laminaria digitata—seasonal variation and impact of environmental factors |
title_full |
Crude fucoidan content in two North Atlantic kelp species, Saccharina latissima and Laminaria digitata—seasonal variation and impact of environmental factors |
title_fullStr |
Crude fucoidan content in two North Atlantic kelp species, Saccharina latissima and Laminaria digitata—seasonal variation and impact of environmental factors |
title_full_unstemmed |
Crude fucoidan content in two North Atlantic kelp species, Saccharina latissima and Laminaria digitata—seasonal variation and impact of environmental factors |
title_sort |
crude fucoidan content in two north atlantic kelp species, saccharina latissima and laminaria digitata—seasonal variation and impact of environmental factors |
publishDate |
2017 |
url |
https://zenodo.org/record/851376 https://doi.org/10.1007/s10811-017-1204-5 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Kattegat |
geographic_facet |
Kattegat |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/654010/ https://zenodo.org/record/851376 https://doi.org/10.1007/s10811-017-1204-5 oai:zenodo.org:851376 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.1007/s10811-017-1204-5 |
container_title |
Journal of Applied Phycology |
container_volume |
29 |
container_issue |
6 |
container_start_page |
3121 |
op_container_end_page |
3137 |
_version_ |
1766129988519591936 |