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Promotive effects of resistant maltodextrin on apparent absorption of calcium, magnesium, iron and zinc in rats
- Source :
- European Journal of Nutrition
- Publication Year :
- 2009
- Publisher :
- Springer-Verlag, 2009.
-
Abstract
- Background: It has been reported that low-viscous and fermentable dietary fiber and nondigestible oligosaccharides enhance mineral absorption. Resistant maltodextrin, nonviscous, fermentable and soluble source of dietary fiber, has several physiological functions. However, influence of resistant maltodextrin on mineral absorption is unclear. Aim of the study: We conducted balance studies in rats to investigate effects of resistant maltodextrin and hydrogenated resistant maltodextrin on apparent mineral absorption. Methods: In experiment 1 (Exp. 1), 40 rats were fed test diets based on AIN-93G with or without resistant maltodextrin or hydrogenated resistant maltodextrin for 2 weeks. In experiment 2 (Exp. 2), 32 rats were cecectomized (CX) or sham-operated (Sham) and fed diets with or without hydrogenated resistant maltodextrin for 1 week. Results: In Exp. 1, ingestion of resistant maltodextrin and hydrogenated resistant maltodextrin dose-dependently enhanced apparent absorption rates of Ca, Mg, Fe and Zn, and increased cecal fermentation with cecal expansion. In Exp. 2, the absorption rates of Ca and Mg were significantly enhanced by ingestion of hydrogenated resistant maltodextrin in Sham group but not in CX group. The promotion of Fe and Zn absorption was not affected by cecectomy. Conclusion: Ingestion of resistant maltodextrin and hydrogenated resistant maltodextrin increased apparent Ca and Mg absorptions dependent on cecal fermentation, while other mechanisms may also be involved in promotion of apparent Fe and Zn absorption by resistant maltodextrin.
- Subjects :
- Hydrogenated resistant maltodextrin
Dietary Fiber
Male
Medicine (miscellaneous)
chemistry.chemical_element
Cecal fermentation
Zinc
Rats, Sprague-Dawley
Short-chain fatty acid
Polysaccharides
Organic chemistry
Animals
Mineral absorption
Magnesium
Food science
Analysis of Variance
Nutrition and Dietetics
Apparent absorption
Chemistry
Body Weight
food and beverages
Original Contribution
Diet
Rats
Calcium, Dietary
Calcium magnesium
Intestinal Absorption
Resistant maltodextrin
Dietary fiber
Apparent mineral absorption
Iron, Dietary
Subjects
Details
- Language :
- English
- ISSN :
- 14366215 and 14366207
- Volume :
- 49
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- European Journal of Nutrition
- Accession number :
- edsair.doi.dedup.....8857171b23f9157007f8e96a0c1e8e0e