Lutein and Zeaxanthin in Leafy Greens and Their Bioavailability: Olive Oil Influences the Absorption of Dietary Lutein and Its Accumulation in Adult Rats
| Autor: | Marisiddaiah Raju, T. P. Krishnakantha, Vallikannan Baskaran, Rangaswamy Lakshminarayana |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Male
Lutein food.ingredient Biological Availability Xanthophylls Biology Absorption chemistry.chemical_compound food Dietary Fats Unsaturated Zeaxanthins Vegetables Botany Animals Plant Oils Food science Rats Wistar Olive Oil Carotenoid Chromatography High Pressure Liquid chemistry.chemical_classification Sunflower oil food and beverages General Chemistry eye diseases Rats Bioavailability Zeaxanthin Oleic acid Vegetable oil chemistry Xanthophyll sense organs General Agricultural and Biological Sciences |
| Zdroj: | Journal of Agricultural and Food Chemistry. 55:6395-6400 |
| ISSN: | 1520-5118 0021-8561 |
| Popis: | This study determined the lutein level in various green leafy vegetables (GLVs) and the influence of olive and sunflower oils on the postprandial plasma and eye response of dietary lutein in adult rats, previously induced with lutein depletion (LD). Fresh GLVs (n = 35) were assessed for lutein (L) and its isomer zeaxanthin (Z) levels by high-performance liquid chromatography and liquid chromatography-mass spectrometry. Among GLVs analyzed, Commelina benghalensis L. contained a higher level of L + Z (183 mg/100 g dry wt) and was used as a lutein source for feeding studies. Rats with LD were fed a diet containing powdered C. benghalensis (2.69 mg lutein/kg diet) with either olive oil (OO group), sunflower oil (SFO group), or groundnut oil (GNO group) for 16 days. The L + Z levels of the OO group were markedly (p > 0.05) higher than those of SFO and GNO groups, in plasma (37.6 and 40.9%) and eyes (22.7 and 30.8%), respectively. These results suggest that oleic acid or OO can be used as a suitable fat source to modulate the absorption of dietary lutein to manage age-related macular degeneration. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|