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Angaïts A, Bierla K, Szpunar J, Lobinski R. Extraction recovery and speciation of selenium in Se-enriched yeast. Anal Bioanal Chem 2024; 416:5111-5120. [PMID: 39079983 DOI: 10.1007/s00216-024-05448-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 07/10/2024] [Accepted: 07/12/2024] [Indexed: 09/06/2024]
Abstract
The complete characterization of selenium-enriched yeast in terms of selenium species has been the goal of extensive research for the last three decades. This contribution addresses the two outstanding questions: the mass balance of the identified and reported selenium species and the possible presence of inorganic selenium. For this purpose, four procedures have been designed combining, in diverse order, the principal steps of selenium speciation analysis in Se-rich yeast: extraction of the Se-metabolome, derivatization of cysteine and Se-cysteine (SeCys) residues, proteolysis, and definitive Se recovery using SDS extraction, followed by mineralization. The recovery of selenium in each step and its speciation were controlled by ICP MS and by reversed-phase HPLC-ICP MS, respectively. The study, carried out for the SELM-1 reference material, demonstrated the presence of about 10% of inorganic selenium and a serious risk of losses of SeCys during derivatization and proteolysis. As result of our work, we postulate the following values for SELM-1: Se-metabolome fraction (SeMF) 14.8 ± 0.7%; total selenomethionine (SeMet) 66.2 ± 2.7% (including ca. 1.5% SeMet present in the SeMF); total SeCys 12.5 ± 1.5% (including 2% of SeCys present in the Se-MF); total inorganic selenium 9.7 ± 1.7%, accounting for > 99.8% of the selenium.
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Affiliation(s)
- Ange Angaïts
- CNRS, Institute of Analytical and Physical Chemistry for the Environment and Materials (IPREM), UMR5254, Hélioparc, Universite of Pau, 64053, Pau, France
| | - Katarzyna Bierla
- CNRS, Institute of Analytical and Physical Chemistry for the Environment and Materials (IPREM), UMR5254, Hélioparc, Universite of Pau, 64053, Pau, France
| | - Joanna Szpunar
- CNRS, Institute of Analytical and Physical Chemistry for the Environment and Materials (IPREM), UMR5254, Hélioparc, Universite of Pau, 64053, Pau, France
| | - Ryszard Lobinski
- CNRS, Institute of Analytical and Physical Chemistry for the Environment and Materials (IPREM), UMR5254, Hélioparc, Universite of Pau, 64053, Pau, France.
- Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664, Warsaw, Poland.
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de Paiva EL, Ruttens A, Waegeneers N, Laing GD, Morgano MA, Cheyns K, Arisseto-Bragotto AP. Selenium in selected samples of infant formulas and milk commercialized in Belgium and Brazil: Total content, speciation and estimated intake. Food Res Int 2023; 164:112289. [PMID: 36737897 DOI: 10.1016/j.foodres.2022.112289] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
Abstract
Total selenium (Se) and Se species concentrations were determined in 50 infant formulas and milk samples commercialized in Brazil and Belgium. Infant formula categories were starter, follow-up, specialized and plant-based (soy and rice), while milk samples included whole, skimmed, semi-skimmed and plant-based products. Total Se content was determined by Inductively Coupled Plasma Mass Spectrometry (ICP-MS), after microwave digestion. An enzymatic extraction method was applied to evaluate the Se species, mostly selenomethionine (SeMet), Se(IV) and Se(VI), through High Performance Liquid Chromatography coupled to ICP-MS (LC-ICP-MS). Starters and follow-up samples presented the highest total Se concentrations and values up to 30 µg/kg were observed in the reconstituted product. The lowest level (below the LOQ = 10 µg/kg) was verified in an anti-regurgitation specialized formula. The relative agreement between the measured total Se and the Se content declared on the label varied from 55 % to 317 %. Concentrations in infant formulas were not markedly different from concentrations in milk except for rice and oat milk samples that showed values below the LOQ. SeMet was the main species found in milks, while in infant formulas the species concentrations varied according to the product. The daily intake (DI) of Se via infant formula consumption was calculated and compared with the Adequate Intake (AI) value and the Dietary Reference Intake (DRI) established by the EFSA NDA Panel and ANVISA, respectively. Estimated maximum intakes of total Se obtained for reconstituted infant formula were 40.6 mg/day, corresponding to 400 % and 202 % of the DRI and AI, respectively.
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Affiliation(s)
- Esther Lima de Paiva
- Faculty of Food Engineering, University of Campinas (UNICAMP), Rua Monteiro Lobato 80, 13083-862 Campinas - SP, Brazil; Sciensano, Leuvensesteenweg 17, 3080 Tervuren, Belgium.
| | - Ann Ruttens
- Sciensano, Leuvensesteenweg 17, 3080 Tervuren, Belgium
| | | | - Gijs Du Laing
- Ghent University, Laboratory of Analytical Chemistry and Applied Ecochemistry, Coupure links 653, 9000 Ghent, Belgium
| | - Marcelo Antônio Morgano
- Institute of Food Technology (ITAL), Avenida Brasil 2880, C. P. 139, 13070-178 Campinas - SP, Brazil
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Turck D, Bohn T, Castenmiller J, de Henauw S, Hirsch‐Ernst K, Knutsen HK, Maciuk A, Mangelsdorf I, McArdle HJ, Peláez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Aggett P, Crous Bou M, Cubadda F, Ciccolallo L, de Sesmaisons Lecarré A, Fabiani L, Titz A, Naska A. Scientific opinion on the tolerable upper intake level for selenium. EFSA J 2023; 21:e07704. [PMID: 36698500 PMCID: PMC9854220 DOI: 10.2903/j.efsa.2023.7704] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver a scientific opinion on the tolerable upper intake level (UL) for selenium. Systematic reviews of the literature were conducted to identify evidence regarding excess selenium intake and clinical effects and potential biomarkers of effect, risk of chronic diseases and impaired neuropsychological development in humans. Alopecia, as an early observable feature and a well-established adverse effect of excess selenium exposure, is selected as the critical endpoint on which to base a UL for selenium. A lowest-observed-adverse-effect-level (LOAEL) of 330 μg/day is identified from a large randomised controlled trial in humans (the Selenium and Vitamin E Cancer Prevention Trial (SELECT)), to which an uncertainty factor of 1.3 is applied. A UL of 255 μg/day is established for adult men and women (including pregnant and lactating women). ULs for children are derived from the UL for adults using allometric scaling (body weight0.75). Based on available intake data, adult consumers are unlikely to exceed the UL, except for regular users of food supplements containing high daily doses of selenium or regular consumers of Brazil nuts. No risk has been reported with the current levels of selenium intake in European countries from food (excluding food supplements) in toddlers and children, and selenium intake arising from the natural content of foods does not raise reasons for concern. Selenium-containing supplements in toddlers and children should be used with caution, based on individual needs.
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Sun L, Liu G, Xu D, Wu Z, Ma L, Victoria SFM, Baumgard LH, Bu D. Milk selenium content and speciation in response to supranutritional selenium yeast supplementation in cows. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2021; 7:1087-1094. [PMID: 34738039 PMCID: PMC8545651 DOI: 10.1016/j.aninu.2021.07.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 07/11/2021] [Accepted: 07/15/2021] [Indexed: 01/01/2023]
Abstract
The effects of selenium (Se) yeast supplementation on performance, blood biochemical and antioxidant parameters, and milk Se content and speciation were evaluated. Thirty-six mid-lactation Holstein dairy cows were randomly assigned to 1 of 3 treatments: 1) control (basal diet containing Se at 0.11 mg/kg DM), 2) basal diet + 0.5 mg supplemental Se/kg DM (SY-0.5), and 3) basal diet + 5 mg supplemental Se/kg DM (SY-5). Selenium was supplemented as Se yeast. The trial consisted of a 1-week pretrial period and an 8-week experimental period. Milk somatic cell score decreased with SY-5 supplementation (P < 0.05), but other performance parameters were not affected (P > 0.05). The serum Se concentration increased with the increasing levels of Se yeast supplementation (P < 0.05), however, blood biochemical parameters showed few treatment effects. The antioxidant capacity of dairy cows was improved with Se yeast supplementation reflected in increased serum glutathione peroxidase activity (P < 0.05) and total antioxidant capacity (P = 0.08), and decreased malondialdehyde concentration (P < 0.05). Milk total Se concentration increased with Se dose (P < 0.05). Also, the selenomethionine concentration increased with Se dose from 13.0 ± 0.7 μg/kg in control to 33.1 ± 2.1 μg/kg in SY-0.5 and 530.4 ± 17.5 μg/kg in SY-5 cows (P < 0.05). Similarly, selenocystine concentration increased from 15.6 ± 0.9 μg/kg in control and 18.9 ± 1.1 μg/kg in SY-0.5 to 22.2 ± 1.5 μg/kg in SY-5 cows (P < 0.05). In conclusion, Se yeast is a good organic Se source to produce Se-enriched cow milk with increased Se species including selenomethionine and selenocystine. The results can provide useful information on milk Se species when a high dose Se yeast was supplemented in the cow diet.
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Affiliation(s)
- Lingling Sun
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Gentao Liu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Dongmei Xu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Zhaohai Wu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Lu Ma
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Sanz-Fernandez M. Victoria
- Comparative Physiology Group, Subdireccion General de Investigacion y Tecnologia (SGIT), Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria (INIA), Madrid 28040, Spain
| | - Lance H. Baumgard
- Department of Animal Science, Iowa State University, Ames 50014, USA
| | - Dengpan Bu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
- CAAS-ICRAF Joint Lab on Agroforestry and Sustainable Animal Husbandry, Beijing 100193, China
- Hunan Co-Innovation Center of Animal Production Safety, CICAPS, Changsha, Hunan 410128, China
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Green and simple extraction of free seleno-amino acids from powdered and lyophilized milk samples with natural deep eutectic solvents. Food Chem 2020; 326:126965. [PMID: 32413755 DOI: 10.1016/j.foodchem.2020.126965] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 04/27/2020] [Accepted: 04/30/2020] [Indexed: 01/02/2023]
Abstract
Natural deep eutectic solvents (NADES) were introduced for the extraction of free seleno-amino acids from lyophilized and powdered milk samples. Different NADES were evaluated, and lactic acid:glucose (LGH) showed the highest selenium recoveries. Selenium analysis was performed by inductively coupled plasma mass spectrometry (ICP MS). Se-NADES analysis in ICP MS was optimized according to the radio frequency power and nebulization gas flow rate. Se-NADES extraction was optimized by an experimental design. LGH dilution, LGH volume, sample quantity, and ultrasound time were factors influencing the extraction. Seleno-amino acids were determined by liquid chromatography-ICP MS. After optimization, the limits of detection obtained were 7.37, 8.63, and 9.64 µg kg-1 for selenocysteine, selenomethionine, and seleno-methyl-selenocysteine, respectively. The NADES-extraction is a green procedure with 2 penalty points in the EcoScale. The method was applied to the analysis of powdered milk, lyophilized Se-fortified sheep milk, and ERM-BD151 skimmed milk powder.
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Barbé F, Chevaux E, Castex M, Elcoso G, Bach A. Comparison of selenium bioavailability in milk and serum in dairy cows fed different sources of organic selenium. ANIMAL PRODUCTION SCIENCE 2020. [DOI: 10.1071/an18719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Context
Selenium (Se) bioavailability is an important parameter to consider when supplementing trace minerals to optimise animal health and performance.
Aims
To assess the biological transfer of Se in milk and serum of three sources of organic Se in dairy cattle: two different pure selenomethionines (SM1, SM2) and Se-yeast (SY) containing selenomethionine, selenocysteine and other forms of organic Se.
Methods
Forty-five lactating Holstein dairy cows were randomly distributed in nine groups (three sources of organic Se supplemented at three doses: 0.1, 0.2 and 0.3 ppm organic Se in addition to 0.3 ppm of inorganic Se) and the Se concentrations in milk and serum were analysed at different times over 34 days of supplementation. Dry matter intake, milk yield, as well as milk fat and protein contents were recorded daily for each cow. Selenium bioavailability in milk was assessed as the ratio between amount of Se secreted in milk and amount of Se consumed.
Key results
The lowest Se dose (0.1 ppm), independent of source, did not allow detection a different pattern of transfer into milk and serum, suggesting that at this level, the Se supplied was mainly used to cover the animal needs. Supplementing SY at 0.2 and 0.3 ppm resulted in the most consistent secretion of Se into milk, whereas SM2 was most effective at increasing serum Se concentrations.
Conclusions
At the supplementing doses of 0.2 and 0.3 ppm, SY elicits an increased transfer of Se into milk concentrations compared with SM1 and SM2, whereas SM2 induces the greatest increase in Se serum concentrations.
Implications
SY is more effective than SM1 and SM2 at increasing Se transfer into milk. Supplementation of SM2 induces a pattern of Se transfer into milk and serum that differs from the other Se sources suggesting a different metabolism of this particular Se source.
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Chao Y, Yu B, He J, Huang Z, Mao X, Luo J, Luo Y, Zheng P, Yu J, Chen D. Effects of different levels of dietary hydroxy-analogue of selenomethionine on growth performance, selenium deposition and antioxidant status of weaned piglets. Arch Anim Nutr 2019; 73:374-383. [PMID: 31328971 DOI: 10.1080/1745039x.2019.1641368] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
This study was conducted to assess the effects of the hydroxy-analogue of selenomethionine (HMSeBA) on growth performance, selenium (Se) deposition and antioxidant status of piglets. In a 28-d experiment, 252 piglets were assigned into seven treatments. These treatments were a negative control (Con-, basal diet without supplement Se), a positive control (Con+, basal diet + 0.3 mg Se from sodium selenite per kg), and five HMSeBA groups (basal diet + 0.1, 0.2, 0.3, 0.4 and 0.5 mg Se/kg from HMSeBA, respectively). Results showed that dietary HMSeBA supplementation did not affect growth performance of piglets. However, HMSeBA supplementation increased the Se concentrations in serum, liver, kidney and muscle compared with groups Con- and Con+ (p < 0.05). Compared with group Con-, supplementation with 0.2 and 0.4 mg Se from HMSeBA increased serum total antioxidant capability (T-AOC) and addition of 0.4 and 0.5 mg Se from HMSeBA increased serum glutathione peroxidase (GSH-Px) activities (p < 0.05). Compared with group Con-, the addition of 0.1, 0.2, 0.4, 0.5 mg Se from HMSeBA increased GSH-Px activities and decreased malondialdehyde (MDA) contents in the liver, and 0.3 mg Se from HMSeBA increased T-AOC and GSH-Px activities in the liver (p < 0.05). Compared with group Con+, 0.3 mg Se from HMSeBA increased serum superoxide dismutase (SOD) and hepatic T-AOC activities, and decreased the serum MDA level (p < 0.05). In general, dietary HMSeBA supplementation could improve Se deposition in serum and tissue and antioxidant capacity of piglets, suggesting that HMSeBA could be an effective Se source for piglets.
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Affiliation(s)
- Yamei Chao
- a Animal Nutrition Institute and Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University , Chengdu , Sichuan , P. R. China
| | - Bing Yu
- a Animal Nutrition Institute and Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University , Chengdu , Sichuan , P. R. China
| | - Jun He
- a Animal Nutrition Institute and Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University , Chengdu , Sichuan , P. R. China
| | - Zhiqing Huang
- a Animal Nutrition Institute and Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University , Chengdu , Sichuan , P. R. China
| | - Xiangbing Mao
- a Animal Nutrition Institute and Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University , Chengdu , Sichuan , P. R. China
| | - Junqiu Luo
- a Animal Nutrition Institute and Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University , Chengdu , Sichuan , P. R. China
| | - Yuheng Luo
- a Animal Nutrition Institute and Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University , Chengdu , Sichuan , P. R. China
| | - Ping Zheng
- a Animal Nutrition Institute and Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University , Chengdu , Sichuan , P. R. China
| | - Jie Yu
- a Animal Nutrition Institute and Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University , Chengdu , Sichuan , P. R. China
| | - Daiwen Chen
- a Animal Nutrition Institute and Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University , Chengdu , Sichuan , P. R. China
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Lopez R, Escudero L, D’Amato R, Businelli D, Trabalza-Marinucci M, Cerutti S, Pacheco P. Optimisation of microwave-assisted acid hydrolysis for the determination of seleno-amino acids bound to proteins in powdered milk, lyophilized milk and infant formula. J Food Compost Anal 2019. [DOI: 10.1016/j.jfca.2019.03.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Falk M, Lebed P, Bernhoft A, Framstad T, Kristoffersen AB, Salbu B, Oropeza-Moe M. Effects of sodium selenite and L-selenomethionine on feed intake, clinically relevant blood parameters and selenium species in plasma, colostrum and milk from high-yielding sows. J Trace Elem Med Biol 2019; 52:176-185. [PMID: 30732879 DOI: 10.1016/j.jtemb.2018.12.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 11/29/2018] [Accepted: 12/14/2018] [Indexed: 12/18/2022]
Abstract
A field study in periparturient sows fed different dietary concentrations of either sodium selenite or L-selenomethionine (SeMet) was conducted to evaluate feed intake, haematological and biochemical parameters as well as to describe some key selenium (Se) species, namely selenoprotein P (SelP), selenoalbumin (SeAlb) and selenomethionine (SeMet) as well as total Se in plasma, colostrum and milk. Thirty-two sows were allotted to four treatments from 30 days (d) prepartum throughout on average a 32 d lactation period. Sodium selenite supplemented diets contained 0.40 and 0.60 mg Se/kg feed, while SeMet supplemented feed contained 0.26 and 0.43 mg Se/kg feed. Concentrations of sodium selenite and SeMet in complete feed exceeded the upper limits for total dietary Se and added organic Se, respectively, according to the European Union legislation. Blood samples were collected at initiation of the study, at farrowing and at weaning. Colostrum samples were collected at farrowing and milk samples at weaning. Se species were subjected to liquid chromatography, and total Se and Se species were determined using inductively coupled plasma mass spectrometry. The SeMet supplemented diets resulted in higher feed intake and in higher levels of total Se, SelP, SeAlb and SeMet in colostrum compared with sows fed sodium selenite. Similar results were obtained for levels of total Se and SeMet in milk at weaning. The higher dietary sodium selenite concentration in sows' feed did not increase the Se transfer into colostrum or milk when compared with those receiving the lower level of sodium selenite. However, the increase in serum-Zn from initiation until farrowing, observed in sows fed SeMet as well as the higher glutamate dehydrogenase activity in sodium selenite supplemented sows in this period might indicate a higher requirement of antioxidant defence in sodium selenite-supplemented sows. To our knowledge, the present data on Se species in plasma, colostrum and milk of sows represent the most complete investigation of Se in sows conducted to date. A higher amount of the above-mentioned Se species in the colostrum of sows supplemented with SeMet might strengthen the piglets' antioxidative system and passive immunity as well as improve their average daily weight gain. The higher feed intake in sows fed diets supplemented with SeMet is an interesting finding that warrants further investigation.
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Affiliation(s)
- Michaela Falk
- Norwegian Veterinary Institute, Kyrkjevegen 332/334, NO-4325, Sandnes, Norway; Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine, NMBU, Kyrkjevegen 332/334, NO-4325, Sandnes, Norway.
| | - Pablo Lebed
- Faculty of Environmental Sciences and Nature Resource Management (MINA)/Centre for Environmental Radioactivity (CERAD) CoE, Ås, Norwegian University of Life Sciences (NMBU), P.O. Box 5003, NO-1432, Ås, Norway.
| | - Aksel Bernhoft
- Norwegian Veterinary Institute, P.O. Box 750, Sentrum, NO-0106, Oslo, Norway.
| | - Tore Framstad
- Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine, Campus Adamstuen, NMBU, P.O. Box 8146 Dep., NO-0033, Oslo, Norway.
| | | | - Brit Salbu
- Faculty of Environmental Sciences and Nature Resource Management (MINA)/Centre for Environmental Radioactivity (CERAD) CoE, Ås, Norwegian University of Life Sciences (NMBU), P.O. Box 5003, NO-1432, Ås, Norway.
| | - Marianne Oropeza-Moe
- Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine, NMBU, Kyrkjevegen 332/334, NO-4325, Sandnes, Norway.
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Bierla K, Lobinski R, Szpunar J. Determination of Proteinaceous Selenocysteine in Selenized Yeast. Int J Mol Sci 2018; 19:E543. [PMID: 29439473 PMCID: PMC5855765 DOI: 10.3390/ijms19020543] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 01/29/2018] [Accepted: 01/31/2018] [Indexed: 11/16/2022] Open
Abstract
A method for the quantitation of proteinaceous selenocysteine (SeCys) in Se-rich yeast was developed. The method is based on the reduction of the Se-Se and S-Se bridges with dithiotretiol, derivatization with iodoacetamide (carbamidomethylation), followed by HPLC-ICP MS. The chromatographic conditions were optimized for the total recovery of the proteinaceous selenocysteine, the minimum number of peaks in the chromatogram (reduction of derivatization products of other Se-species present) and the baseline separation. A typical chromatogram of a proteolytic digest of selenized yeast protein consisted of up to five peaks (including SeMet, carbamidomethylated (CAM)-SeCys, and Se(CAM)₂) identified by retention time matching with available standards and electrospray MS. Inorganic selenium non-specifically attached to proteins and selenomethionine could be quantified (in the form of Se(CAM)₂) along with SeCys. Selenocysteine, selenomethionine, inorganic selenium, and the water soluble-metabolite fraction accounted for the totality of selenium species in Se-rich yeast.
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Affiliation(s)
- Katarzyna Bierla
- Institute of Analytical Sciences, IPREM, UMR 5254, CNRS-UPPA, Hélioparc, 2 Avenue Angot, 64053 Pau, France.
| | - Ryszard Lobinski
- Institute of Analytical Sciences, IPREM, UMR 5254, CNRS-UPPA, Hélioparc, 2 Avenue Angot, 64053 Pau, France.
| | - Joanna Szpunar
- Institute of Analytical Sciences, IPREM, UMR 5254, CNRS-UPPA, Hélioparc, 2 Avenue Angot, 64053 Pau, France.
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11
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Vacchina V, Bierla K, Szpunar J, Lobinski R. Quantification of SeMet and SeCys in Biological Fluids and Tissues by Liquid Chromatography Coupled to Inductively Coupled Plasma Mass Spectrometry (HPLC-ICP MS). Methods Mol Biol 2018; 1661:153-162. [PMID: 28917043 DOI: 10.1007/978-1-4939-7258-6_11] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Selenium (Se) is an element readily absorbed during the intestinal tract and distributed in the body. In biological fluids, tissues, and animal products, Se is known to be present mainly in the form of a selenoamino-acid (selenomethionine (SeMet) or selenocysteine (SeCys)). Both amino-acids have different biological activities which justifies their discrimination. Here, we describe the method allowing the simultaneous determination of SeMet and SeCys in blood/plasma, animal tissues, milk, and eggs by two-dimensional Liquid Chromatography coupled to Inductively Coupled Plasma Mass Spectrometry (2D HPLC-ICP MS).
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Affiliation(s)
- Véronique Vacchina
- UT2A, Hélioparc Pau-Pyrénées, 2 Avenue du President Angot, 64000, Pau, France.
| | - Katarzyna Bierla
- IPREM-LCABIE, Hélioparc Pau-Pyrénées, 2 Avenue du Président Angot, 64000, Pau, France
| | - Joanna Szpunar
- IPREM-LCABIE, Hélioparc Pau-Pyrénées, 2 Avenue du Président Angot, 64000, Pau, France
| | - Ryszard Lobinski
- IPREM-LCABIE, Hélioparc Pau-Pyrénées, 2 Avenue du Président Angot, 64000, Pau, France
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12
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Vacchina V, de la Calle I, Séby F. Cr(VI) speciation in foods by HPLC-ICP-MS: investigation of Cr(VI)/food interactions by size exclusion and Cr(VI) determination and stability by ion-exchange on-line separations. Anal Bioanal Chem 2015; 407:3831-9. [DOI: 10.1007/s00216-015-8616-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 03/02/2015] [Accepted: 03/03/2015] [Indexed: 10/23/2022]
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13
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Palomo M, Gutiérrez AM, Pérez-Conde MC, Cámara C, Madrid Y. Se metallomics during lactic fermentation of Se-enriched yogurt. Food Chem 2014; 164:371-9. [DOI: 10.1016/j.foodchem.2014.05.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 04/10/2014] [Accepted: 05/04/2014] [Indexed: 10/25/2022]
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Zhang Q, Yang G. Selenium speciation in bay scallops by high performance liquid chromatography separation and inductively coupled plasma mass spectrometry detection after complete enzymatic extraction. J Chromatogr A 2014; 1325:83-91. [DOI: 10.1016/j.chroma.2013.11.050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2013] [Revised: 11/07/2013] [Accepted: 11/26/2013] [Indexed: 10/26/2022]
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15
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Jeong JS, Lee J, Pak YN. Quantitative Speciation of Selenium in Human Blood Serum and Urine with AE- RP- and AF-HPLC-ICP/MS. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.12.3817] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Yang C, Ren C, Piao X, Kannan N, Li D. An on-line sample pretreatment technique for the HPLC analysis of plant samples. J Sep Sci 2013; 36:3599-607. [DOI: 10.1002/jssc.201300722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 08/18/2013] [Accepted: 09/05/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Cui Yang
- Key Laboratory of Natural Resource of the Changbai Mountain and Functional Molecular; Yanbian University, Ministry of Education; Yanji City Jilin Province China
| | - Chunyan Ren
- Key Laboratory of Natural Resource of the Changbai Mountain and Functional Molecular; Yanbian University, Ministry of Education; Yanji City Jilin Province China
| | - Xiangfan Piao
- Key Laboratory of Natural Resource of the Changbai Mountain and Functional Molecular; Yanbian University, Ministry of Education; Yanji City Jilin Province China
| | - Narayanan Kannan
- Faculty of Environmental Sciences; Universiti Putra Malaysia; Serdang Selangor Malaysia
| | - Donghao Li
- Key Laboratory of Natural Resource of the Changbai Mountain and Functional Molecular; Yanbian University, Ministry of Education; Yanji City Jilin Province China
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Sanchez-Rodas D, Mellano F, Morales E, Giraldez I. A simplified method for inorganic selenium and selenoaminoacids speciation based on HPLC–TR–HG–AFS. Talanta 2013; 106:298-304. [DOI: 10.1016/j.talanta.2012.11.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 10/31/2012] [Accepted: 11/06/2012] [Indexed: 10/27/2022]
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18
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Dernovics M, Vass A, Németh A, Magyar A. Synthesis and application of a Sec2-containing oligopeptide for method evaluation purposes in selenium speciation. Talanta 2012; 99:186-93. [DOI: 10.1016/j.talanta.2012.05.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 05/17/2012] [Accepted: 05/19/2012] [Indexed: 11/17/2022]
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19
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Kapsimali D, Rosenberg E, Zachariadis GA. Investigation of the HPLC-IT-TOF-MS Technique with Atmospheric Pressure Chemical Ionization for Speciation of Selenoaminoacids, Dimethyldiselenide, and Diphenyldiselenide. ANAL LETT 2012. [DOI: 10.1080/00032719.2011.649462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Proteomics analysis reveals multiple regulatory mechanisms in response to selenium in rice. J Proteomics 2012; 75:1849-66. [PMID: 22236520 DOI: 10.1016/j.jprot.2011.12.030] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Revised: 12/15/2011] [Accepted: 12/20/2011] [Indexed: 11/21/2022]
Abstract
Selenium (Se) shows both beneficial and toxic effects on plant growth. Rice (Oryza sativa L.) seedlings cultivated under lower concentrations of sodium selenite showed enhanced growth, whereas higher concentrations of sodium selenite repressed seedling growth. To acquire detailed regulatory mechanisms underlying these effects, a comparative proteomics study using 2-dimensional gel electrophoresis and MALDI-TOF/TOF MS was performed. By comparison of gel images between Se treatments and control, 66 and 97 differentially expressed proteins were identified in shoot and root, respectively under at least one of the Se treatment concentrations. Gene Ontology and Clustering analysis reveal primary metabolism, photosynthesis and redox homeostasis are the most highly affected biological processes by Se treatments. Lower Se treatments (2 and 6 mg/L sodium selenite) activated antioxidative system, enhanced photosynthesis and primary metabolism. However, higher Se treatment (10mg/L sodium selenite) damaged photosynthesis apparatus, inhibited photosynthesis and primary metabolism. Protein ubiquitination and phosphorylation may also play important roles in Se response in rice. In conclusion, our study provided novel insights into Se response in rice at the proteome level, which are expected to be highly useful for dissecting the Se response pathways in higher plants and for producing Se enriched rice cultivars in the future.
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21
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Gammelgaard B, Jackson MI, Gabel-Jensen C. Surveying selenium speciation from soil to cell--forms and transformations. Anal Bioanal Chem 2010; 399:1743-63. [PMID: 20953781 DOI: 10.1007/s00216-010-4212-8] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Accepted: 09/08/2010] [Indexed: 12/21/2022]
Abstract
The aim of this review is to present and evaluate the present knowledge of which selenium species are available to the general population in the form of food and common supplements and how these species are metabolized in mammals. The overview of the selenium sources takes a horizontal approach, which encompasses identification of new metabolites in yeast and food of plant and animal origin, whereas the survey of the mammalian metabolism takes a horizontal as well as a vertical approach. The vertical approach encompasses studies on dynamic conversions of selenium compounds within cells, tissues or whole organisms. New and improved sample preparation, separation and detection methods are evaluated from an analytical chemical perspective to cover the progress in horizontal speciation, whereas the analytical methods for the vertical speciation and the interpretations of the results are evaluated from a biological angle as well.
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Affiliation(s)
- Bente Gammelgaard
- Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.
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22
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Moreda-Piñeiro J, Alonso-Rodríguez E, Moreda-Piñeiro A, Moscoso-Pérez C, Muniategui-Lorenzo S, López-Mahía P, Prada-Rodríguez D, Bermejo-Barrera P. Simultaneous pressurized enzymatic hydrolysis extraction and clean up for arsenic speciation in seafood samples before high performance liquid chromatography–inductively coupled plasma-mass spectrometry determination. Anal Chim Acta 2010; 679:63-73. [DOI: 10.1016/j.aca.2010.09.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 09/07/2010] [Accepted: 09/08/2010] [Indexed: 10/19/2022]
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23
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Luo Y, Zhang B, Chen M, Wang J, Zhang X, Gao WY, Huang JF, Fu WL. Rapid and simultaneous determination of essential minerals and trace elements in human milk by improved flame atomic absorption spectroscopy (FAAS) with microwave digestion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:9396-9400. [PMID: 20695422 DOI: 10.1021/jf100940e] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A method for the simultaneous and economical determination of many trace elements in human milk is developed. Two multi-element hollow cathode lamps (HCLs) were used instead of single-element HCLs to improve the sample throughput of flame atomic absorption spectroscopy (FAAS). The microwave digestion of milk is optimized prior to detection, and the performance characteristics of the improved analysis method are identified. Clinical samples are detected by both FAAS and inductively coupled plasma-optical emission spectroscopy (ICP-OES) for methodology evaluation. Results reveal that the proposed FAAS with multi-element HCLs could determine six essential minerals and trace elements within 15 min. This method provides a linear analytical range of 0.01-10 mg L(-1). For Ca, Cu, Fe, Mg, Mn, and Zn, the limits of determination are 1.5, 3, 1.8, 2.2, 2.1, and 1.3 microg L(-1), respectively. The mean relative standard deviations (RSDs) of intra- and interassays are lower than 7%. Excellent operational characteristics of rapidity, simplicity, and economy make the proposed method a promising one for the quantification of trace elements in human milk in clinics of underdeveloped areas.
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Affiliation(s)
- Yang Luo
- Department of Laboratory Medicine, Southwest Hospital, Third Military Medical University of People's Liberation Army, Chongqing, People's Republic of China
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Clausen MR, Connolly C, Skibsted LH, Stagsted J. Oxidative stability of bovine milk determined by individual variability in herd irrespective of selenium status. Int Dairy J 2010. [DOI: 10.1016/j.idairyj.2010.02.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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25
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Lipiec E, Siara G, Bierla K, Ouerdane L, Szpunar J. Determination of selenomethionine, selenocysteine, and inorganic selenium in eggs by HPLC–inductively coupled plasma mass spectrometry. Anal Bioanal Chem 2010; 397:731-41. [DOI: 10.1007/s00216-010-3544-8] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2009] [Revised: 02/03/2010] [Accepted: 02/05/2010] [Indexed: 10/19/2022]
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26
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Anan Y, Ogra Y, Somekawa L, Suzuki KT. Effects of chemical species of selenium on maternal transfer during pregnancy and lactation. Life Sci 2009; 84:888-93. [PMID: 19389411 DOI: 10.1016/j.lfs.2009.03.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Revised: 03/29/2009] [Accepted: 03/31/2009] [Indexed: 11/29/2022]
Abstract
AIMS This study compares the transfer from mother to fetuses and pups of selenium (Se) in the form of selenite, selenate, and selenomethionine (SeMet) labeled with different homo-elemental isotopes. MAIN METHODS To completely substitute endogenous Se with natural abundance with Se enriched with a single stable isotope (82Se), female Wistar rats delivered by mother fed 82Se-selenite were fed Se-deficient diet and drinking water containing 82Se-selenite immediately after weaning, and then mated with male Wistar rat at the age of 15-17 weeks. The pregnant rats were divided into two groups. One group was fed Se-deficient diet and drinking water containing 76Se-selenite, 78Se-selenate, and 77Se-SeMet from gestation days 11 to 20. The other group was fed the same diet and drinking water containing the three Se species after delivery for 10 days of lactation. Non-pregnant rats were also fed Se mixture and Se-deficient diet for 10 days. KEY FINDING Tissue and plasma Se concentrations showed significant changes among non-pregnant, pregnant, and lactating rats. The peak corresponding to selenoprotein P (Sel P) in serum of pregnant rats was reduced. The concentration of 77Se originating from SeMet was higher than those of 76Se from selenite and 78Se from selenate in the stomach content of pups. SIGNIFICANCE Inorganic Se species are more preferably transformed into Sel P than SeMet, and Sel P is effectively incorporated into placenta during pregnancy. On the other hand, SeMet is a more efficient Se source than inorganic Se species during lactation.
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Affiliation(s)
- Yasumi Anan
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
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