RT Journal Article
T1 Study of Adsorption and Flocculation Properties of Natural Clays to Remove Prorocentrum lima
A1 Louzao Ojeda, María del Carmen
A1 Abal Camaño, Paula
A1 Fernández, Diego A.
A1 Rodríguez Vieytes, Mercedes
A1 Legido, José Luis
A1 Gómez, Carmen P.
A1 Pais, Jesus
A1 Botana López, Luis Miguel
K1 Prorocentrum lima
K1 Dinoflagellate
K1 Clay
K1 Adsorption
K1 Flocculation
AB High accumulations of phytoplankton species that produce toxins are referred to as harmful algal blooms (HABs). HABs represent one of the most important sources of contamination in marine environments, as well as a serious threat to public health, fisheries, aquaculture-based industries, and tourism. Therefore, methods effectively controlling HABs with minimal impact on marine ecology are required. Marine dinoflagellates of the genera Dinophysis and Prorocentrum are representative producers of okadaic acid (OA) and dinophysistoxins responsible for the diarrhetic shellfish poisoning (DSP) which is a human intoxication caused by the consumption of shellfish that bioaccumulate those toxins. In this work we explore the use of natural clay for removing Prorocentrum lima. We evaluate the adsorption properties of clays in seawater containing the dinoflagellates. The experimental results confirmed the cell removal through the flocculation of algal and mineral particles leading to the formation of aggregates, which rapidly settle and further entrain cells during their descent. Moreover, the microscopy images of the samples enable one to observe the clays in aggregates of two or more cells where the mineral particles were bound to the outer membranes of the dinoflagellates. Therefore, this preliminary data offers promising results to use these clays for the mitigation of HABs
PB MDPI
YR 2015
FD 2015
LK http://hdl.handle.net/10347/23585
UL http://hdl.handle.net/10347/23585
LA eng
NO Louzao, M.C.; Abal, P.; Fernández, D.A.; Vieytes, M.R.; Legido, J.L.; Gómez, C.P.; Pais, J.; Botana, L.M. Study of Adsorption and Flocculation Properties of Natural Clays to Remove Prorocentrum lima. Toxins 2015, 7, 3977-3988
NO he research leading to these results has received funding from the following FEDER cofunded-grants. From CDTI and Technological Funds, supported by Ministerio de Economía y Competitividad, AGL2012-40185-CO2-01, AGL2014-58210-R, and Consellería de Cultura, Educación e Ordenación Universitaria, GRC2013-016, and through Axencia Galega de Innovación, Spain, ITC-20133020 SINTOX. From CDTI under ISIP Programme, Spain, IDI-20130304 APTAFOOD.From the European Union’s Seventh Framework Programme managed by REA—Research Executive Agency (FP7/2007-2013) under grant agreement 312184 PHARMASEA
DS Minerva
RD 22 abr 2026