Phycoremediation potential of brown macroalgae species Saccharina latissimi and Laminaria digitata towards inorganic arsenic in a multitrophic pilot-scale experiment

Rie Romme Rasmussen, Sara Cunha, José Fernandes, Cátia Oliveira, Patrícia Anacleto, Vera Barbosa, Ricardo N. Alves, António T. Marques, Freek H.M. van den Heuvel, Jens Jørgen Sloth

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Abstract

The presence of organic pollutants and toxic elements in aquatic ecosystems can cause serious problems to the environment and marine organisms and subsequently lead to adverse effects to human health following consumption of contaminated seafood. Hence, technological solutions for the<br/>reduction and mitigation of contaminants in the aquatic food production chain are called upon. The phycoremediation technology is a cost-effective algae-based approach that utilizes the ability of macroalgae to concentrate elements and compounds from the environment and to metabolize<br/>various molecules in their tissues.<br/>Arsenic (As) is a ubiquitous metalloid found in soils, groundwater, surface water, air, and consequently also in various food items. Arsenic is bioaccumulated in the marine food chain and total arsenic concentrations in the mg/kg range is usually found in marine organisms. The toxicity of<br/>arsenic depends on the chemical species, where inorganic arsenic is considered to be the most toxic form of arsenic.<br/>The aim of the present study was to evaluate the phycoremediation capacity of the two brown seaweed species Sugar kelp (Saccharina latissima) and Oarweed (Laminaria digitata) in a controlled multitrophic (water, algae, mussels) pilot experiment with exposure to inorganic arsenic. The results of the experiments indicated that of the two algae species used in the experiment, Laminaria digitata was more efficient for removal of arsenic from seawater and hence a better choice for phycoremediation practises towards this parameter.<br/><br/>Acknowledgments<br/>The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under the ECsafeSEAFOOD project (grant agreement n° 311820).
Original languageEnglish
Publication date2017
Number of pages1
Publication statusPublished - 2017
EventSeafood Safety: New Findings & Innovation Challenges - Royal Flemish Academy of Belgium for Science and the Arts, Brussels, Belgium
Duration: 25 Jan 201726 Jan 2017
http://www.ecsafeseafoodconference.com/

Conference

ConferenceSeafood Safety
LocationRoyal Flemish Academy of Belgium for Science and the Arts
CountryBelgium
CityBrussels
Period25/01/201726/01/2017
Internet address

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