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RSS FeedsNutrients, Vol. 11, Pages 1424: In Vitro Interactions of Dietary Fibre Enriched Food Ingredients with Primary and Secondary Bile Acids (Nutrients)


25 june 2019 23:00:02

Nutrients, Vol. 11, Pages 1424: In Vitro Interactions of Dietary Fibre Enriched Food Ingredients with Primary and Secondary Bile Acids (Nutrients)

Dietary fibres are reported to interact with bile acids, preventing their reabsorption and promoting their excretion into the colon. We used a method based on in vitro digestion, dialysis, and kinetic analysis to investigate how dietary fibre enriched food ingredients affect the release of primary and secondary bile acids as related to viscosity and adsorption. As the main bile acids abundant in humans interactions with glyco- and tauroconjugated cholic acid, chenodesoxycholic acid and desoxycholic acid were analysed. Viscous interactions were detected for apple, barley, citrus, lupin, pea, and potato derived ingredients, which slowed the bile acid release rate by up to 80%. Adsorptive interactions of up to 4.7 μmol/100 mg DM were significant in barley, oat, lupin, and maize preparations. As adsorption directly correlated to the hydrophobicity of the bile acids the hypothesis of a hydrophobic linkage between bile acids and dietary fibre is supported. Delayed diffusion in viscous fibre matrices was further associated with the micellar properties of the bile acids. As our results indicate changes in the bile acid pool size and composition due to interactions with dietary fibre rich ingredients, the presented method and results could add to recent fields of bile acid research. Digg Facebook Google StumbleUpon Twitter
38 viewsCategory: Nutrition
Nutrients, Vol. 11, Pages 1425: Mixed Spices at Culinary Doses Have Prebiotic Effects in Healthy Adults: A Pilot Study (Nutrients)
Nutrients, Vol. 11, Pages 1439: Diurnal Variation of Markers for Cholesterol Synthesis, Cholesterol Absorption, and Bile Acid Synthesis: A Systematic Review and the Bispebjerg Study of Diurnal Variations (Nutrients)
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