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The Effect of Dietary Fiber from Wheat Processing Streams on the Formation of Carboxylic Acids and Microbiota in the Hindgut of Rats.

Haskå, Lina LU ; Andersson, Roger and Nyman, Margareta LU (2011) In Journal of Agricultural and Food Chemistry 59(7). p.3406-3413
Abstract
Colonic fermentation of dietary fiber produces carboxylic acids and may stimulate the growth of beneficial bacteria. This study investigated how byproducts of wheat processing (distillers' grains and two fractions from the wet fractionation to starch and gluten, one of which was treated with xylanase) affect the composition of the cecal microbiota and the formation of carboxylic acids in rats. Differences were mostly found between diets based on supernatants and pellets, rather than between fiber sources. Cecal pools and levels of most carboxylic acids in portal blood were higher for rats fed the supernatant diets, while cecal pH and ratios of acetic to propionic acid in portal blood were lower. The diet based on supernatant from... (More)
Colonic fermentation of dietary fiber produces carboxylic acids and may stimulate the growth of beneficial bacteria. This study investigated how byproducts of wheat processing (distillers' grains and two fractions from the wet fractionation to starch and gluten, one of which was treated with xylanase) affect the composition of the cecal microbiota and the formation of carboxylic acids in rats. Differences were mostly found between diets based on supernatants and pellets, rather than between fiber sources. Cecal pools and levels of most carboxylic acids in portal blood were higher for rats fed the supernatant diets, while cecal pH and ratios of acetic to propionic acid in portal blood were lower. The diet based on supernatant from distillers' grains gave the highest level of bifidobacteria. Molecular weight and solubility are easier to modify with technological processes, which provides an opportunity to optimize these properties in the development of health products. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Agricultural and Food Chemistry
volume
59
issue
7
pages
3406 - 3413
publisher
The American Chemical Society
external identifiers
  • wos:000289050400083
  • pmid:21391670
  • scopus:79953852250
ISSN
0021-8561
DOI
10.1021/jf104380f
language
English
LU publication?
yes
id
d7201ae9-64ed-4737-af09-c6b33ccde931 (old id 1884120)
date added to LUP
2011-04-20 09:04:32
date last changed
2017-01-15 03:01:49
@article{d7201ae9-64ed-4737-af09-c6b33ccde931,
  abstract     = {Colonic fermentation of dietary fiber produces carboxylic acids and may stimulate the growth of beneficial bacteria. This study investigated how byproducts of wheat processing (distillers' grains and two fractions from the wet fractionation to starch and gluten, one of which was treated with xylanase) affect the composition of the cecal microbiota and the formation of carboxylic acids in rats. Differences were mostly found between diets based on supernatants and pellets, rather than between fiber sources. Cecal pools and levels of most carboxylic acids in portal blood were higher for rats fed the supernatant diets, while cecal pH and ratios of acetic to propionic acid in portal blood were lower. The diet based on supernatant from distillers' grains gave the highest level of bifidobacteria. Molecular weight and solubility are easier to modify with technological processes, which provides an opportunity to optimize these properties in the development of health products.},
  author       = {Haskå, Lina and Andersson, Roger and Nyman, Margareta},
  issn         = {0021-8561},
  language     = {eng},
  number       = {7},
  pages        = {3406--3413},
  publisher    = {The American Chemical Society},
  series       = {Journal of Agricultural and Food Chemistry},
  title        = {The Effect of Dietary Fiber from Wheat Processing Streams on the Formation of Carboxylic Acids and Microbiota in the Hindgut of Rats.},
  url          = {http://dx.doi.org/10.1021/jf104380f},
  volume       = {59},
  year         = {2011},
}