Effect of sulphur on selenium accumulation and speciation in Nannochloropsis oceanica
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 w...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Journal of Functional Foods |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1756464622002857 |
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| author | Bárbara O. Guimarães Belén Villarreal-Toribio Tamara García-Barrera Ana Arias-Borrego Pieter Gremmen René H. Wijffels Maria J. Barbosa Sarah D'Adamo |
| author_facet | Bárbara O. Guimarães Belén Villarreal-Toribio Tamara García-Barrera Ana Arias-Borrego Pieter Gremmen René H. Wijffels Maria J. Barbosa Sarah D'Adamo |
| author_sort | Bárbara O. Guimarães |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-14T05:45:32Z |
| format | Article |
| id | doaj.art-315d72bdf1fb401e8d4054018060a0fa |
| institution | Directory Open Access Journal |
| issn | 1756-4646 |
| language | English |
| last_indexed | 2024-04-14T05:45:32Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Functional Foods |
| spelling | doaj.art-315d72bdf1fb401e8d4054018060a0fa2022-12-22T02:09:18ZengElsevierJournal of Functional Foods1756-46462022-09-0196105215Effect of sulphur on selenium accumulation and speciation in Nannochloropsis oceanicaBárbara O. Guimarães0Belén Villarreal-Toribio1Tamara García-Barrera2Ana Arias-Borrego3Pieter Gremmen4René H. Wijffels5Maria J. Barbosa6Sarah D'Adamo7Wageningen University and Research (WUR), Bioprocess Engineering, AlgaePARC, P.O. Box 16, 6700 AA Wageningen, Netherlands; Corresponding author.Wageningen University and Research (WUR), Bioprocess Engineering, AlgaePARC, P.O. Box 16, 6700 AA Wageningen, NetherlandsResearch Centre for Natural Resources, Health and The Environment (RENSMA), Department of Chemistry “Prof. J.C. Vílchez Martín”, Faculty of Experimental Sciences, University of Huelva, Fuerzas Armadas Ave., 21007 Huelva, SpainResearch Centre for Natural Resources, Health and The Environment (RENSMA), Department of Chemistry “Prof. J.C. Vílchez Martín”, Faculty of Experimental Sciences, University of Huelva, Fuerzas Armadas Ave., 21007 Huelva, Spain; Department of Analytical Chemistry, Faculty of Chemistry, University of Sevilla, 41012 Sevilla, SpainWageningen University and Research (WUR), Environmental Technology, Wageningen, NetherlandsWageningen University and Research (WUR), Bioprocess Engineering, AlgaePARC, P.O. Box 16, 6700 AA Wageningen, Netherlands; Faculty of Biosciences and Aquaculture, Nord University, N-8049, Bodø, NorwayWageningen University and Research (WUR), Bioprocess Engineering, AlgaePARC, P.O. Box 16, 6700 AA Wageningen, NetherlandsWageningen University and Research (WUR), Bioprocess Engineering, AlgaePARC, P.O. Box 16, 6700 AA Wageningen, NetherlandsSulphur (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.http://www.sciencedirect.com/science/article/pii/S1756464622002857Nannochloropsis oceanicaSeleniumSeleniteAquacultureSe speciationChemical similarity |
| spellingShingle | Bárbara O. Guimarães Belén Villarreal-Toribio Tamara García-Barrera Ana Arias-Borrego Pieter Gremmen René H. Wijffels Maria J. Barbosa Sarah D'Adamo Effect of sulphur on selenium accumulation and speciation in Nannochloropsis oceanica Journal of Functional Foods Nannochloropsis oceanica Selenium Selenite Aquaculture Se speciation Chemical similarity |
| title | Effect of sulphur on selenium accumulation and speciation in Nannochloropsis oceanica |
| title_full | Effect of sulphur on selenium accumulation and speciation in Nannochloropsis oceanica |
| title_fullStr | Effect of sulphur on selenium accumulation and speciation in Nannochloropsis oceanica |
| title_full_unstemmed | Effect of sulphur on selenium accumulation and speciation in Nannochloropsis oceanica |
| title_short | Effect of sulphur on selenium accumulation and speciation in Nannochloropsis oceanica |
| title_sort | effect of sulphur on selenium accumulation and speciation in nannochloropsis oceanica |
| topic | Nannochloropsis oceanica Selenium Selenite Aquaculture Se speciation Chemical similarity |
| url | http://www.sciencedirect.com/science/article/pii/S1756464622002857 |
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