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Prolonged transit time through the stomach and small intestine improves iron dialyzability and uptake in vitro
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.ORCID iD: 0000-0002-3593-7317
Chalmers University of Technology, Sweden.
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2003 (English)In: Journal of Agricultural and Food Chemistry, ISSN 0021-8561, E-ISSN 1520-5118, Vol. 51, no 17, p. 5131-5136Article in journal (Refereed) Published
Abstract [en]

The iron dialyzability and uptake in relation to transit time through the stomach and small intestine was investigated using a dynamic in vitro gastrointestinal model in combination with Caco-2 cells. Three test meals were evaluated, consisting of lactic fermented vegetables with white (I) or whole meal bread (II) and of sourdough-fermented rye bread (III). Three transit times were tested (fast, medium, and slow transport). Iron dialyzability and absorption differed significantly between medium and slow transit time for meal I and between fast and medium transit time for meal III. For meal II, high in phytate, the iron dialyzability and absorption were low irrespective of transit time. The meals could be ranked with respect to iron dialyzability and uptake in the order I > III > II. Although the in vitro models used have limitations compared to in vivo experiments, the results suggest that an increased transit time may improve iron availability.

Place, publisher, year, edition, pages
2003. Vol. 51, no 17, p. 5131-5136
Keywords [en]
Caco-2 cells, Gastrointestinal model, Iron absorption, Iron dialyzability, Transit time, iron, lactic acid, phytate, article, bioavailability, bread, cell strain CACO 2, dialysis, evaluation, fermentation technique, intestine transit time, iron deficiency, process model, rye, test meal, vegetable, Digestion, Gastrointestinal Transit, Humans, Intestinal Absorption, Intestine, Small, Models, Biological, Stomach, Secale cereale
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-46971DOI: 10.1021/jf0208233Scopus ID: 2-s2.0-0043062766OAI: oai:DiVA.org:ri-46971DiVA, id: diva2:1461580
Available from: 2020-08-27 Created: 2020-08-27 Last updated: 2020-09-08Bibliographically approved

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Eklund-Jonsson, Charlotte

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