In vitro digestion method to evaluate solubility of dietary zinc, selenium and manganese in salmonid diets
| Autor: | Saskia Kröckel, Jens Jørgen Sloth, Robin Ørnsrud, Heidi Amlund, Veronika Sele, Marta S. Silva, Antony Jesu Prabhu Antony Jesu Prabhu |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Salmo salar
chemistry.chemical_element Manganese Zinc 010501 environmental sciences 01 natural sciences Biochemistry Inorganic Chemistry Selenium 03 medical and health sciences Hydrolysis 0302 clinical medicine Animals Chelation Solubility Alkaline hydrolysis 0105 earth and related environmental sciences Minerals Availability Accessibility Trace Elements chemistry Dietary Supplements Molecular Medicine Dietary mineral Fish nutrition In vitro method 030217 neurology & neurosurgery Nuclear chemistry |
| Zdroj: | Silva, M S, Prabhu, P A J, Ørnsrud, R, Sele, V, Kröckel, S, Sloth, J J & Amlund, H 2020, ' In vitro digestion method to evaluate solubility of dietary zinc, selenium and manganese in salmonid diets ', Journal of Trace Elements in Medicine and Biology, vol. 57, 126418 . https://doi.org/10.1016/j.jtemb.2019.126418 Journal of Trace Elements in Medicine and Biology |
| Popis: | Background The determination of dietary mineral solubility is one of the main steps in the evaluation of their availability for a given species. Methods This study proposed an in vitro digestion method (acidic and alkaline hydrolysis). The method was applied to evaluate the solubility of inorganic and organic forms of zinc (Zn), selenium (Se) and manganese (Mn) in salmonid diets. An inorganic mineral (IM) diet was supplemented with zinc sulphate, sodium selenite and manganous sulphate and an organic mineral (OM) diet was supplemented with zinc chelate of glycine, l -selenomethionine and manganese chelate of glycine. Results The solubility of Zn was similar in both diets tested. The amount of soluble Zn was low in the acidic hydrolysis (3–8%) and lower in the alkaline hydrolysis (0.4–2%). The solubility of Se was higher in the OM diet (7–34%) compared with the IM diet (3–12%). Regarding Mn, after the acidic hydrolysis the solubility was higher in the IM diet (6–25%) than the OM diet (4–17%). The in vitro solubility were compared with in vivo availability of Zn, Se and Mn. Data obtained for solubility (%) of Zn, Se and Mn was lower when compared with apparent availability (%) of Zn, Se and Mn. Conclusion Data obtained demonstrated that solubility of Zn, Se and Mn was influenced by the mineral chemical form supplemented to the diet and by the gastrointestinal environment. The solubility of Zn, Se and Mn was not comparable with the apparent availability of Zn, Se and Mn. Nevertheless, the effect of the chemical form of the minerals was similar for the solubility of Zn, Se and Mn and the apparent availability of Zn, Se and Mn. Considering the overall results of this study, the in vitro method could replace some of the in vivo studies for a qualitative evaluation but not for a quantitative evaluation. |
| Databáze: | OpenAIRE |
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