AMNE:(ENGINEERING AND TECHNOLOGY Other Engineering and Technologies Food Engineering)
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Fermentation of vegetable fiber in the intestinal tract of rats and effects on fecal bulking and bile acid excretion
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- Nyman, M (author)
- Lund University,Lunds universitet,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Schweizer, T F (author)
- Nestec Ltd.
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- Tyrén, S (author)
- Lund University
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- (creator_code:org_t)
- Elsevier BV, 1990
- 1990
- English 8 s.
- In: Journal of Nutrition. - : Elsevier BV. - 0022-3166. ; 120:5, s. 66-459
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The fermentative breakdown and fecal bulking capacity of dietary fiber from various vegetables (carrots, rutabagas, peas, green beans and Brussels sprouts) were evaluated in balance experiments in rats. The excretion of bile acids, protein and fat was also studied. The addition of blanched vegetables providing 10 g of fiber/100 g of diet caused a two-(rutabagas) to threefold (carrots) increase in fecal dry weight compared to that with a basal fiber-free diet. With green beans and Brussels sprouts, only about 25% of the fecal dry weight could be accounted for as fiber, whereas with the other investigated vegetables, 40-47% was fiber. Of the remaining part, 11% on average was fat, and 18% was crude protein. Fiber in carrots and peas was the least degraded, with approximately 47% of the polysaccharide intake being excreted in feces. By contrast, the breakdown of the fiber in green beans and Brussels sprouts was more extensive, with a mean of 23% of the polysaccharides being recovered. Among individual fiber constituents, glucose, mannose and uronic acids were least fermented, with considerable differences between vegetables. Total excretion of bile acids was reduced only when Brussels sprouts were added, whereas the concentration of fecal bile acids was lowered with all vegetables except rutabagas. However, no uniform change in fecal bile acid pattern could be detected.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Livsmedelsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Food Engineering (hsv//eng)
Keyword
- Animals
- Arabinose/analysis
- Bile Acids and Salts/analysis
- Dietary Fiber/analysis
- Fats/analysis
- Feces/analysis
- Fermentation/physiology
- Galactose/analysis
- Glucose/analysis
- Intestines/drug effects
- Male
- Models, Biological
- Proteins/analysis
- Rats
- Rats, Inbred Strains
- Rhamnose/analysis
- Uronic Acids/analysis
- Vegetables/metabolism
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Nyman, M
- Schweizer, T F
- Tyrén, S
- Reimann, S
- Asp, N G
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