Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1993-4-26
|
pubmed:abstractText |
Uniformly 14C-labelled primary cell walls (14C-PCW) were purified from suspension-cultured cells of spinach (Spinacia oleracea L.) grown in a medium containing D-[U-14C]glucose. The approximate polymer composition of the 14C-PCW preparation (% total 14C) was homogalacturonan 30, rhamnogalacturonan 23, xyloglucan 10, other hemicelluloses 3, cellulose 21, lignin 0, 14C-labelled protein < 3 and [14C]starch < 2. The degree of methyl esterification of the pectic polysaccharides was about 25%. The 14C-PCW contained about 4% O-acetyl and 3% non-volatile ester-linked residues. When tracer levels of these 14C-PCW were fed to rats, only about 18% of the 14C appeared in the faeces; negligible levels of 14C (0.07%) remained in the gut contents 4 d after feeding. Some 14C was present in the carcass. The results show that U-14C-labelled primary cell walls can be purified and radiochemically analysed by the methods developed here, and that primary cell walls are extensively fermented by the gut microflora of the rat.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0007-1145
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
69
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
177-88
|
pubmed:dateRevised |
2003-11-14
|
pubmed:meshHeading |
pubmed-meshheading:8384475-Animals,
pubmed-meshheading:8384475-Carbon Radioisotopes,
pubmed-meshheading:8384475-Cell Wall,
pubmed-meshheading:8384475-Dietary Fiber,
pubmed-meshheading:8384475-Digestive System,
pubmed-meshheading:8384475-Fermentation,
pubmed-meshheading:8384475-Male,
pubmed-meshheading:8384475-Plants, Edible,
pubmed-meshheading:8384475-Polysaccharides,
pubmed-meshheading:8384475-Rats,
pubmed-meshheading:8384475-Rats, Wistar
|
pubmed:year |
1993
|
pubmed:articleTitle |
Uniformly 14C-labelled plant cell walls: production, analysis and behaviour in rat gastrointestinal tract.
|
pubmed:affiliation |
Centre for Plant Science, University of Edinburgh.
|
pubmed:publicationType |
Journal Article
|