1. Quantification of lutein in egg following feeding hens with a lutein supplement and quantification of lutein in human plasma after consumption of lutein enriched eggs;Adabi;Arch. Geflugelkd.,2010
2. Effects of mountain grassland maturity stage and grazing management on carotenoids in sward and cow's milk;Calderon;Anim. Res.,2006
3. Lutein bioavailability is higher from lutein-enriched eggs than from supplements and spinach in men;Chung;J. Nutr.,2004
4. Foodstuffs–Determination of Vitamin E by High Performance Liquid Chromatography–Measurement of α-, β-, γ- and δ-Tocopherols;EN 12822,2000
5. Foodstuffs–Determination of Vitamin A by High Performance Liquid Chromatography–Part 1: Measurement of All-trans-Retinol and 13-cis-Retinol;EN 12823-1,2000