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Related Experiment Videos

Barley bran flour accelerates gastrointestinal transit time

J R Lupton1, J L Morin, M C Robinson

  • 1Graduate Faculty of Nutrition, Texas A&M University, College Station 77843.

Journal of the American Dietetic Association
|August 1, 1993
PubMed
Summary

Barley bran flour significantly speeds up digestion and increases stool weight, unlike cellulose which had no effect. This dietary fiber promotes better colon function.

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Area of Science:

  • Gastroenterology
  • Human Nutrition
  • Dietary Fiber Research

Background:

  • Colon physiology is influenced by dietary components.
  • Dietary fiber intake is crucial for digestive health.
  • Understanding the specific effects of different fiber sources is important.

Purpose of the Study:

  • To investigate the impact of barley bran flour on colon physiology.
  • To compare the effects of barley bran flour with cellulose on gastrointestinal transit time and fecal weight.

Main Methods:

  • 44 volunteers were divided into two groups.
  • One group received the National Cholesterol Education Program (NCEP) step 1 diet with 30g barley bran flour.
  • The other group received the NCEP step 1 diet with 20g cellulose.

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  • Gastrointestinal transit time was measured using radiopaque markers.
  • Fecal samples were collected for weight and dry weight determination.

    • Main Results:

    • Barley bran flour significantly reduced mean transit time by 8.02 hours.
    • Cellulose supplementation increased mean transit time by 2.95 hours.
    • Barley bran flour significantly increased daily fecal weight by 48.6g.
    • Cellulose supplementation did not significantly increase fecal weight.

    Conclusions:

    • Barley bran flour effectively accelerates gastrointestinal transit.
    • Barley bran flour supplementation leads to a significant increase in fecal weight.
    • Barley bran flour demonstrates a more beneficial effect on colon physiology compared to cellulose in this study.