title: Determining Factors of Lipophilic Micronutrient Bioaccessibility in Several Leafy Vegetables.
abstract: Micronutrient deficiencies are still a public health issue in least developed countries. Promoting diet diversification is a promising strategy. Numerous fruits and vegetables are rich in micronutrients, but some of these compounds are poorly bioaccessible. The objective of this study was to identify the biochemical determinants of the micronutrient bioaccessibility in leaves. The contents in cell walls, pectins, tannins, and proteins of the leafy vegetables were assessed, and correlations with the micronutrient bioaccessibitity were explored. The leafy vegetables have interesting nutritional profiles with noticeable amounts in protein, provitamin A (β-carotene), and α-tocopherol for some species. Their cell wall contents greatly varied from 3.4 to 8.7 g/100 g as well as their pectin percentages. Only the perilla and drumstick leaves contained condensed tannins. In fresh leaves, the contents in bioaccessible carotenoids were low. The correlation study highlighted that the carotenoid bioaccessibility was negatively correlated to the pectin contents of the leaves.
authors: IRD; UMR 204, IRD/Montpellier/SupAgro (NUTRIPASS) , 911 avenue Agropolis, B.P. 64501, 34394 Montpellier, Cedex 5, France.
authors: Wichien
authors: W
authors: Sriwichai
authors: IRD; UMR 204, IRD/Montpellier/SupAgro (NUTRIPASS) , 911 avenue Agropolis, B.P. 64501, 34394 Montpellier, Cedex 5, France.
authors: Jacques
authors: J
authors: Berger
authors: IRD; UMR 204, IRD/Montpellier/SupAgro (NUTRIPASS) , 911 avenue Agropolis, B.P. 64501, 34394 Montpellier, Cedex 5, France.
authors: Christian
authors: C
authors: Picq
authors: Montpellier SupAgro; UMR 204, IRD/Montpellier/SupAgro (NUTRIPASS) , 911 avenue Agropolis, B.P. 64501, 34394 Montpellier, Cedex 5, France.
authors: Sylvie
authors: S
authors: Avallone
mesh_terms: D001682:Biological Availability; D018977:Micronutrients / Q000032:analysis*; D009753:Nutritive Value; D018515:Plant Leaves / Q000737:chemistry*; D014131:Trace Elements / Q000032:analysis; D014675:Vegetables / Q000737:chemistry*; D024502:alpha-Tocopherol / Q000032:analysis; D019207:beta Carotene / Q000032:analysis
chemical_list: D018977:Micronutrients; D014131:Trace Elements; D019207:beta Carotene; D024502:alpha-Tocopherol
keywords: in vitro digestion; micellarization; pectins; tannins; β-carotene