Trace metal accumulation in Atlantic bluefin tuna and correlations with protein-lipid composition
Copyright © 2022 Elsevier Ltd. All rights reserved..
This study determines the biochemical composition and metal concentrations (Hg, Fe, Zn, Cu) in muscle tissue of reared Atlantic bluefin tuna and investigates whether protein-lipid composition affects metal accumulation. A significant positive relationship was found between Hg concentrations and protein content, whereas a strong negative relationship between Hg concentrations and lipid content was revealed. Opposite results were obtained, correlating Zn concentrations with biochemical components. No correlations between the concentrations of the other two metals and the protein or lipid components were observed. Evidently, biochemical components may influence the accumulation of certain metals, but not in the same way. Although the analyzed tuna samples represent a rich source of essential metals, Hg may pose a risk to consumers. Our results suggest that a lower level of Hg can be associated with greater lipid and lower protein content. Consumers could reduce the health risk from Hg by choosing constantly high-fat bluefin tuna.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:404 |
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| Enthalten in: |
Food chemistry - 404(2023), Pt B vom: 15. März, Seite 134691 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Milatou, Niki [VerfasserIn] |
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| Links: |
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| Themen: |
Aquaculture |
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| Anmerkungen: |
Date Completed 29.11.2022 Date Revised 29.11.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.foodchem.2022.134691 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Copyright © 2022 Elsevier Ltd. All rights reserved. | ||
| 520 | |a This study determines the biochemical composition and metal concentrations (Hg, Fe, Zn, Cu) in muscle tissue of reared Atlantic bluefin tuna and investigates whether protein-lipid composition affects metal accumulation. A significant positive relationship was found between Hg concentrations and protein content, whereas a strong negative relationship between Hg concentrations and lipid content was revealed. Opposite results were obtained, correlating Zn concentrations with biochemical components. No correlations between the concentrations of the other two metals and the protein or lipid components were observed. Evidently, biochemical components may influence the accumulation of certain metals, but not in the same way. Although the analyzed tuna samples represent a rich source of essential metals, Hg may pose a risk to consumers. Our results suggest that a lower level of Hg can be associated with greater lipid and lower protein content. Consumers could reduce the health risk from Hg by choosing constantly high-fat bluefin tuna | ||
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| 650 | 4 | |a Benefits-risks | |
| 650 | 4 | |a Biochemical composition | |
| 650 | 4 | |a Mediterranean Sea | |
| 650 | 4 | |a Metal concentrations | |
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| 700 | 1 | |a Megalofonou, Persefoni |e verfasserin |4 aut | |
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