@article{10272/21706,
year = {2022},
url = {https://hdl.handle.net/10272/21706},
abstract = {Sulphur (S) and selenium (Se) are chemically similar. Once Se is taken up, it substitutes S in S-containing amino acids. This study investigated the effect of S on selenite accumulation in the microalga Nannochloropsis oceanica. [0–28 mM] S concentrations and selenite concentrations of 0 and 30 µM were tested. S concentrations of = 3 mM led to decreased cell growth whereas cultures with = 4 mM were not growth limited. Se accumulation increased up to 8-fold when using S = 2 mM and decreased with S 28 mM. The average relative abundance of organic Se species was selenomethionine (SeMet) 98.2 %, selenocystine (SeCys2) 1.4 % and selenomethyl selenocysteine (SeMeSeCys) 0.4 %. Total fatty acids were not affected by S limitation or Se presence. This is the first study on the effect of S on selenite accumulation, organic Se speciation of N. oceanica and its potential as an organic Se-enriched food/feed ingredient.},
organization = {This manuscript is part of a PhD programme funded by the Green
Aquaculture Intensification in Europe (GAIN) project that received
funding from the European Union’s Horizon 2020 research and innovation
programme under grant agreement No 773330. We are grateful
for the preliminary literature review conducted by Judith Ham who
unfortunately could not perform any laboratory work due to Covid-19
restrictions. We would like to thank Wendy Evers for her help in measuring the fatty acids. Ana Arias-Borrego and Tamara García-Barrera
were supported by the project PG2018-096608-B-C21 from the Spanish
Ministry of Science and innovation (MCIN). Generaci´on del Conocimiento.
MCIN/ AEI /10.13039/501100011033/ FEDER “Una manera
de hacer Europa”.},
publisher = {Elsevier},
title = {Effect of sulphur on selenium accumulation and speciation in Nannochloropsis oceanica},
doi = {10.1016/j.jff.2022.105215},
author = {Guimarães, Bárbara O. and Villarreal Toribio, Belén and García Barrera, Tamara and Arias Borrego, Ana and Gremmen, Pieter and Wijffels, René H. and Barbosa, Maria J. and D'Adamo, Sarah},
}