Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/7545
Citations | ||
Scopus | Web of ScienceĀ® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | A combined 13CO2/H2 breath test can be used to assess starch digestion and fermentation in humans |
Author: | Symonds, E. Kritas, S. Omari, T. Butler, R. |
Citation: | The Journal of Nutrition, 2004; 134(5):1193-1196 |
Publisher: | Amer Inst Nutrition |
Issue Date: | 2004 |
ISSN: | 0022-3166 1541-6100 |
Abstract: | Ingestion of starch from corn (naturally enriched with (13)C) should produce (13)CO(2) after small intestinal digestion and (13)CO(2) and H(2) from colonic fermentation. This study used a combined (13)CO(2)/H(2) breath test to assess the digestion and fermentation of resistant starch and to show that the test could detect changes in digestibility due to cooking. Volunteers consumed 40 g digestible cornstarch with water (n = 8), or 40 g resistant cornstarch in liquid (n = 12) or cooked into a pancake (n = 4). Interval breath sampling was performed and analyzed for (13)CO(2) and H(2). Ingestion of resistant starch produced a double-peaked (13)CO(2) excretion curve. The first increase in (13)CO(2) occurred at the same time as excretion from digestible starch (55 +/- 9 and 68 +/- 9 min, respectively), which was due to small intestinal digestion. The second increase in (13)CO(2) was accompanied by an increase in H(2) excretion (432 +/- 15 and 428 +/- 48 min, respectively), which was indicative of colonic bacterial fermentation. Cooking resistant starch increased its degree of digestion from 36 to 72%. The (13)CO(2)/H(2) breath test can be used to estimate digestion and fermentation of starches in different physiologic and pathologic conditions. |
Keywords: | Humans Carbon Dioxide Hydrogen Carbon Isotopes Starch Breath Tests Fermentation Digestion Adult Female Cooking |
DOI: | 10.1093/jn/134.5.1193 |
Published version: | http://dx.doi.org/10.1093/jn/134.5.1193 |
Appears in Collections: | Aurora harvest 4 Paediatrics publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.