Dietary fibre fermentation in the rat intestinal tract : effect of adaptation period, protein and fibre levels, and particle size
(1985) In British Journal of Nutrition 54(3). p.43-635- Abstract
1. The fermentative breakdown of one resistant type of dietary fibre (wheat bran) and one easily-fermented fibre (low-methoxyl pectin) was studied with respect to the length of the adaptation period and fibre level in the diet. The breakdown of the resistant fibre was also studied regarding the protein level in the diet and particle size of the fibre. 2. Prolongation of the adaptation period from 4 to 18 d decreased the faecal dry weight considerably. The excretion of dietary fibre however, was similar, whereas a decrease in faecal nitrogen excretion could be seen. 3. A level of dietary protein of less than 50 g/kg impaired the fermentation of wheat-bran fibre, whereas a level higher than 100 g protein/kg did not further increase the... (More)
1. The fermentative breakdown of one resistant type of dietary fibre (wheat bran) and one easily-fermented fibre (low-methoxyl pectin) was studied with respect to the length of the adaptation period and fibre level in the diet. The breakdown of the resistant fibre was also studied regarding the protein level in the diet and particle size of the fibre. 2. Prolongation of the adaptation period from 4 to 18 d decreased the faecal dry weight considerably. The excretion of dietary fibre however, was similar, whereas a decrease in faecal nitrogen excretion could be seen. 3. A level of dietary protein of less than 50 g/kg impaired the fermentation of wheat-bran fibre, whereas a level higher than 100 g protein/kg did not further increase the degree of fermentation of the fibre. 4. The particle size did not change the fermentability of the fibre, equal amounts of the main components of coarse and milled bran being excreted in faeces. 5. Two different levels of wheat-bran fibre (48 and 96 g/kg) in the diet did not influence the fibre breakdown. Similar results were obtained with two levels of fibre from low-methoxyl pectin (42 and 84 g/kg), but a tendency towards a decreased percentage of faecal excretion of uronic acids was seen at the lower level of low-methoxyl pectin.
(Less)
- author
- Nyman, M LU and Asp, N G LU
- organization
- publishing date
- 1985-11
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Adaptation, Physiological, Animals, Dietary Fiber/administration & dosage, Dietary Proteins/administration & dosage, Feces, Fermentation/drug effects, Intestines/metabolism, Male, Particle Size, Rats, Rats, Inbred Strains, Time Factors
- in
- British Journal of Nutrition
- volume
- 54
- issue
- 3
- pages
- 9 pages
- publisher
- Cambridge University Press
- external identifiers
-
- pmid:2825760
- scopus:0022341523
- ISSN
- 0007-1145
- DOI
- 10.1079/BJN19850150
- language
- English
- LU publication?
- yes
- id
- 8ebd4526-8f04-4990-b182-44988b2bc276
- date added to LUP
- 2018-10-16 17:52:32
- date last changed
- 2024-01-15 04:12:07
@article{8ebd4526-8f04-4990-b182-44988b2bc276,
abstract = {{<p>1. The fermentative breakdown of one resistant type of dietary fibre (wheat bran) and one easily-fermented fibre (low-methoxyl pectin) was studied with respect to the length of the adaptation period and fibre level in the diet. The breakdown of the resistant fibre was also studied regarding the protein level in the diet and particle size of the fibre. 2. Prolongation of the adaptation period from 4 to 18 d decreased the faecal dry weight considerably. The excretion of dietary fibre however, was similar, whereas a decrease in faecal nitrogen excretion could be seen. 3. A level of dietary protein of less than 50 g/kg impaired the fermentation of wheat-bran fibre, whereas a level higher than 100 g protein/kg did not further increase the degree of fermentation of the fibre. 4. The particle size did not change the fermentability of the fibre, equal amounts of the main components of coarse and milled bran being excreted in faeces. 5. Two different levels of wheat-bran fibre (48 and 96 g/kg) in the diet did not influence the fibre breakdown. Similar results were obtained with two levels of fibre from low-methoxyl pectin (42 and 84 g/kg), but a tendency towards a decreased percentage of faecal excretion of uronic acids was seen at the lower level of low-methoxyl pectin.</p>}},
author = {{Nyman, M and Asp, N G}},
issn = {{0007-1145}},
keywords = {{Adaptation, Physiological; Animals; Dietary Fiber/administration & dosage; Dietary Proteins/administration & dosage; Feces; Fermentation/drug effects; Intestines/metabolism; Male; Particle Size; Rats; Rats, Inbred Strains; Time Factors}},
language = {{eng}},
number = {{3}},
pages = {{43--635}},
publisher = {{Cambridge University Press}},
series = {{British Journal of Nutrition}},
title = {{Dietary fibre fermentation in the rat intestinal tract : effect of adaptation period, protein and fibre levels, and particle size}},
url = {{http://dx.doi.org/10.1079/BJN19850150}},
doi = {{10.1079/BJN19850150}},
volume = {{54}},
year = {{1985}},
}