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Pyrzynska K, Sentkowska A. Selenium in plant foods: speciation analysis, bioavailability, and factors affecting composition. Crit Rev Food Sci Nutr 2020; 61:1340-1352. [PMID: 32363893 DOI: 10.1080/10408398.2020.1758027] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Interest in selenium has been increasing over the past few decades with growing knowledge of its importance to overall health. The ability of several plants to accumulate and transform inorganic selenium forms into its bioactive organic compounds has important implications for human nutrition and health. In this review, we present the studies carried out during the last decade to characterize selenium species produced by different plant foods. Attention is also paid to the effect of selenium treatment on chemical composition and antioxidant properties of plants.
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Speciation Analysis of Selenium in Candida utilis Yeast Cells Using HPLC-ICP-MS and UHPLC-ESI-Orbitrap MS Techniques. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8112050] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Selenium plays a key role in the proper metabolism of living organisms. The search for new selenium compounds opens up new possibilities for understanding selenometabolome in yeast cells. This study was aimed at the identification of compounds containing selenium in the feed yeasts Candida utilis ATCC 9950. Yeast biomass was kept in aqueous solutions enriched with inorganic selenium (20 mg·L−1) for 24 h. Speciation analysis of the element was performed using the HPLC-ICP-MS and UHPLC-ESI-Orbitrap MS techniques. The obtained selenium value in the yeast was 629 μg·g−1, while the selenomethionine value was 31.57 μg·g−1. The UHPLC-ESI-Orbitrap MS analysis conducted allowed for the identification of six selenium compounds: dehydro-selenomethionine-oxide, selenomethionine, selenomethionine-NH3, a Se-S conjugate of selenoglutathione-cysteine, methylthioselenoglutathione, and 2,3-DHP-selenocysteine-cysteine. In order to explain the structure of selenium compounds, the selected ions were subjected to fragmentation. The selenium compounds obtained with a low mass play a significant role in the metabolism of the compound. However, the bioavailability of such components and their properties have not been fully understood. The number of signals indicating the presence of selenium compounds obtained using the UHPLC-ESI-Orbitrap MS method was characterized by higher sensitivity than when using the HPLC-ICP-MS method. The obtained results will expand upon knowledge about the biotransformation of selenium in eukaryotic yeast cells. Future research should focus on understanding the entire selenium metabolism in cells and on the search for new transformation pathways for this element. This opens up new possibilities for obtaining functional food, rich in easily absorbable selenium sources, and constituting an alternative to dietary supplements based on this compound found primarily in inorganic form.
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Hann S, Dernovics M, Koellensperger G. Elemental analysis in biotechnology. Curr Opin Biotechnol 2015; 31:93-100. [DOI: 10.1016/j.copbio.2014.08.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 08/23/2014] [Indexed: 01/25/2023]
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Far J, Delvaux C, Kune C, Eppe G, de Pauw E. The Use of Ion Mobility Mass Spectrometry for Isomer Composition Determination Extracted from Se-Rich Yeast. Anal Chem 2014; 86:11246-54. [DOI: 10.1021/ac503142u] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Johann Far
- Department
of Chemistry, Laboratory of Mass Spectrometry, University of Liège, 3 Allée
de la chimie, B6C, Liege (Sart Tilman), B-4000, Belgium
| | - Cédric Delvaux
- Department
of Chemistry, Laboratory of Mass Spectrometry, University of Liège, 3 Allée
de la chimie, B6C, Liege (Sart Tilman), B-4000, Belgium
| | - Christopher Kune
- Department
of Chemistry, Laboratory of Mass Spectrometry, University of Liège, 3 Allée
de la chimie, B6C, Liege (Sart Tilman), B-4000, Belgium
| | - Gauthier Eppe
- Department
of Chemistry, Laboratory of Mass Spectrometry, University of Liège, 3 Allée
de la chimie, B6C, Liege (Sart Tilman), B-4000, Belgium
- Centre
of Analytical Research and Technology (CART) - LSM/Inorganic Analytical
Chemistry, Department of Chemistry, University of Liège, 3, Allee de la Chimie
B6C, Liege, 4000, Belgium
| | - Edwin de Pauw
- Department
of Chemistry, Laboratory of Mass Spectrometry, University of Liège, 3 Allée
de la chimie, B6C, Liege (Sart Tilman), B-4000, Belgium
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