Sites of digestion and absorption of alpha-amylase-resistant starches in the rat
Article Abstract:
A study was done to determine the different sites of resistant starch (RS) utilization along the gastrointestinal tract of rats. Male Wistar rats were given semi-synthetic starch-free diet ad libitum for ten days then randomly fed with resistant maize (corn) starch (RCS), resistant pea starch (RPS) and corn starch. Results show that RS materials react differently in vivo despite the similar manner of preparation in vitro. Small intestinal digestion of RCS is more efficient compared to RPS. Furthermore, the gastrointestinal tract adapts to the rate of RS utilization.
Publication Name: European Journal of Clinical Nutrition
Subject: Health
ISSN: 0954-3007
Year: 1992
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Circadian patterns of total 24-h hydrogen and methane excretion in humans ingesting nonstarch polysaccharide (NSP) diets and the implications for indirect calorimetric and D(sub 2)(super 18)O methodologies
Article Abstract:
Daytime rates or total 24-hour rates of methane and hydrogen excretion show a non-linear relationship and fail to predict the degree of fermentation of mixed resistant starch and nonstarch polysaccharide diet. Stochiometry of the fermentation process may prevent this prediction. While the excretion of the gases leads to an error of less than 0.2% in the calculations of carbon dioxide production and energy expenditure from the indirect calorimetric method, this error is 1% with the use of doubly labelled water method. The error in fuel usage is less than 2%.
Publication Name: European Journal of Clinical Nutrition
Subject: Health
ISSN: 0954-3007
Year: 1996
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Is the rat a suitable model for humans on studies of cereal digestion?
Article Abstract:
A comparison was made of the extent of starch digestion from barley flake and flour in humans and rat to determine whether the rat is a suitable model for humans. The subjects were made to consume flapjacks containing flaked barley and barley flour. The results indicate that the cell walls of barley flake limit the extent of starch digestion in humans but not in rats. Extrapolation of the results from rats to humans was not possible.
Publication Name: European Journal of Clinical Nutrition
Subject: Health
ISSN: 0954-3007
Year: 1996
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- Abstracts: Tooth preparation and pulp degeneration. Posts and cores: state of the art. Resin cements and postoperative sensitivity
- Abstracts: Determination of resistant starch in vitro with three different methods, and in vivo with a rat model. Variation in dietary fibre, beta-glucan, starch, protein, fat and hull content of oats grown in Sweden 1987-1989
- Abstracts: Determination of resistant starch in vitro with three different methods, and in vivo with a rat model. part 2 An in vitro procedure based on chewing to predict metabolic response to starch in cereal and legume products