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Physiological Implications of Wheat and Oat Dietary Fiber

  • K. E. Bach Knudsen
  • Inge Hansen
  • B. Borg Jensen
  • Karin Østergård
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 270)

Abstract

The physiological implications of various types of dietary fiber (DF) are highly correlated to the chemical and structural composition of cell wall materials (CWM) (e.g. Anderson and Chen, 1979; Eastwood and Kay, 1979; Cummings and Branch 1982; Selvendran, 1984; Wisker et al. 1985). These factors in turn determine the physical and physicochemical properties of DF of which the water holding capacity, viscosity and cationic exchange capacity have attracted most interest (Van Soest and Robertson, 1976; Eastwood and Kay, 1979). Wheat bran has a high proportion of insoluble lignified CWM (Selvendran, 1984) and behaves more or less like a inert marker in the gastrointestinal (GI) tract. Wheat bran has little or no effect on digestion and absorption of nutrients in the small intestine and is highly resistant to microbial degradation in the large intestine of monogastrics including man (Stephen and Cummings, 1980). Consequently wheat bran, due to its physical presence, is one of the most efficient DF sources in increasing fecal bulk and in decreasing mouth-to-anus transit time (Cummings et al. 1978; Spiller et al. 1986).

Keywords

Dietary Fiber Large Intestine Wheat fLour Wheat Bran Short Chain Fatty Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • K. E. Bach Knudsen
    • 1
  • Inge Hansen
    • 1
  • B. Borg Jensen
    • 1
  • Karin Østergård
    • 1
  1. 1.National Institute of Animal ScienceAnimal Physiology and BiochemistryTjeleDenmark

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