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SHR Neuro Cancer Cardio Lipid Metab Microb

Majchrzak, D; Fabian, E; Elmadfa, I; .
Vitamin A content (retinol and retinyl esters) in livers of different animals.
FOOD CHEM. 2006; 98(4): 704-710. Doi: 10.1016/j.foodchem.2005.06.035
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Co-authors Med Uni Graz: Fabian Elisabeth
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Abstract:: In the present study, 90 animal livers of five different species (pig, cattle, calf, chicken, turkey) were examined for their vitamin A contents. The investigation of extracted vitamin A included all-trans retinol, retinyl palmitate, stearate, oleate and linoleate, expressed as retinol equivalents (RE). The separation of the various chemical forms was done using HPLC. The liver vitamin A contents ranged between 6.5 and 18.9 mg RE/100 g in pigs, from 1.1 to 6.7 mg RE/100 g in cattle and from 1.6 to 16.6 ing RE/100 g and 2.7 to 21.5 mg RE/100 g in chickens and turkeys, respectively. The livers of calves contained the smallest amount of vitamin A, with variation from 1.3 to 3.2 mg RE/100 g. Retinyl palmitate was the predominant form of vitamin A in the livers of investigated animals and contributed about 40% (avids) up to 75% (calo of the total liver vitamin A contents. The results indicated that the lower levels of animal liver vitamin A, observed in our study, could be a result of small-structured agriculture in Austria. The variations of liver vitamin A concentrations among the species were a result of differences in race, age and the different feeding regimen. (c) 2005 Elsevier Ltd. All rights reserved.
Find related publications in this database (Keywords): retinol; retinyl esters; liver; animals