Stability and bioaccessibility of different forms of carotenoids and vitamin A during in vitro digestion

Research output: Contribution to journalJournal articleResearchpeer-review

  • Julie Courraud
  • Jacques Berger
  • Jean-Paul Cristol
  • Sylvie Avallone

Vitamin A deficiency is a public health issue in developing countries and promoting dietary carotenoids as precursors is a promising strategy. However, carotenoids present in numerous fruits and vegetables are unstable and poorly bioaccessible. This study evaluated these two parameters during in vitro digestion of carotenoids and retinoids from carrot juice, raw and cooked spinach, micronutrient-fortified flour and standards without food matrix. Standards were unstable whereas vitamin A from fortified flour and native food carotenoids were generally better protected by the food matrix (30-100% remaining versus 7-30% for standards). Hydrothermal cooking did not influence spinach carotenoid digestive stability but decreased their contents, phenomenon compensated by a significantly better micellarisation from 15-fold for β-carotene to 72-fold for lutein. Finally, carrot juice provided the greatest amount of bioaccessible provitamin A with 1850 μg/100g dry matter (DM) versus 790 and 80 μg/100g DM in cooked and raw spinach, respectively.

Original languageEnglish
JournalFood Chemistry
Volume136
Issue number2
Pages (from-to)871-7
Number of pages7
ISSN0308-8146
DOIs
Publication statusPublished - 15 Jan 2013
Externally publishedYes

    Research areas

  • Biological Availability, Carotenoids, Cooking, Daucus carota, Digestion, Flour, Humans, Models, Biological, Spinacia oleracea, Vitamin A

ID: 152963853