Linked Life Data

19888729

Source:http://linkedlifedata.com/resource/pubmed/id/19888729

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
23
pubmed:dateCreated
2009-12-2
pubmed:abstractText
Flaxseed mucilage from Linum usitatissimum L. species was constituted by arabinoxylan (about 75%) and pectin (about 25%). A new procedure was developed to obtain only arabinoxylans which implicated treatment of the pectin fraction by enzymatic hydrolysis with pectinase. Then three processes of depolymerization were evaluated on arabinoxylans. First, a thermic hydrolysis in mild acid conditions was performed and an ultrafiltration process was used as purification method. Second, the potential of xylanases from different glycoside hydrolase families for arabinoxylan-oligosaccharides (AXOS) production was tested, and finally a radical depolymerization was conducted. Average molecular weights were determined by high pressure size exclusion chromatography coupled with multiple angle laser light scattering (MALLS), and carbohydrate compositions were determined by high pH anion exchange chromatography pulse amperometric detector (HPAEC-PAD). Both chemical and enzymatic treatments were inefficient to convert arabinoxylans from flaxseed mucilage into AXOS. Only radical depolymerization process was allowed to obtain arabinoxylan-oligosaccharides presenting different molecular weights (11.9 x 10(3) to 1.9 x 10(3) g mol(-1)) with satisfactory yields (75% to 35%).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1520-5118
pubmed:author
pubmed:issnType
Electronic
pubmed:day
9
pubmed:volume
57
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
11308-13
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Production of arabinoxylan-oligosaccharides from flaxseed (Linum usitatissimum).
pubmed:affiliation
Laboratoire des Polysaccharides Microbiens et Végétaux, Université de Picardie Jules Verne, Amiens, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't