English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/75133
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Título

Bioavailability of vitamins A and E from whole and vitamin-fortified milks in control subjects

AutorHerrero-Barbudo, Carmen; Olmedilla Alonso, Begoña ; Granado Lorencio, Fernando; Blanco-Navarro, Inmaculada
Fecha de publicación2006
EditorSpringer
CitaciónEuropean Journal of Nutrition 45: 391- 398 (2006)
ResumenBackground: Dairy products fortified with vitamins and minerals represent a growing market that is of interest to those sectors of the population with unbalanced diets and increased needs. However, there is little information on the bioavailability of micronutrients in milk products at dietary intake levels. Aim of the study: To evaluate the bioavailability of vitamins A and E in whole milk and fortified whole and skimmed milk in control subjects.
Methods: A single-dose bioavailability study was performed using three commercially available milks (unfortified whole milk and whole and skimmed milk fortified with vitamins A and E). Nineteen volunteers (10 women and 9 men) ingested 430 ml of each milk on different days. The contents of retinol and α-tocopherol provided in the milks and the retinyl esters and α-tocopherol in triglyceride-rich lipoprotein fractions (TRL) from plasma collected for 6.5 h postprandially were assayed using a quality-controlled HPLC method. The relative absorption of vitamins A and E from milks was calculated on the basis of area under the curve (AUC) versus time curve estimations, adjusted for plasma volume and expressed as percentage of the amount of nutrient provided. Results: The total amounts of retinol and α-tocopherol provided ranged between 0.48 and 4.15 μmol and 0.41 and 32.49 μmol, respectively. The AUC value of retinyl palmitate in TRL was higher for fortified whole milk than for the other two milks (unfortified whole and fortified skimmed milk). The percent relative absorption of vitamin A did not differ among the three types of milk. The AUC for α-tocopherol was no different after the ingestion of any of these milks. Conclusion: The mean percentage of retinol absorption was apparently similar for the three types of milk, regardless of the amount of fat ingested with each type of milk and the vitamin A provided. © 2006 Steinkopff Verlag.
URIhttp://hdl.handle.net/10261/75133
DOI10.1007/s00394-006-0612-0
Identificadoresdoi: 10.1007/s00394-006-0612-0
issn: 1436-6207
Aparece en las colecciones: (IF) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.