Linked Life Data

12706982

Source:http://linkedlifedata.com/resource/pubmed/id/12706982

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2003-4-22
pubmed:abstractText
Circular dichroism (CD) is presented as a reliable and sensitive method of determining the diadic frequency composition of alginate (F(GG), F(MM) and F(GM+MG)). The availability of samples, very largely or even completely conforming to the limiting structures of polymannuronate (MM)(n), polyguluronate (GG)(n) and polyalternating MG (MG)(n), respectively, allowed the limiting CD spectra for each alginate diad to be obtained. These showed very different CD behaviour, thus pointing out the crucial importance of the neighbouring residue in chiroptical properties. Using an iterative best-fit procedure, the diadic composition of commercial alginates could be obtained from their respective CD spectra by means of a linear combination of the spectra of the three limiting diads. The results were found in excellent agreement with the composition parameters obtained by 1H NMR spectroscopy.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0008-6215
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
338
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1139-42
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Determination of the diadic composition of alginate by means of circular dichroism: a fast and accurate improved method.
pubmed:affiliation
Department of Biochemistry, Biophysics and Macromolecular Chemistry, University of Trieste, Via L. Giorgieri 1, Italy. donati@bbcm.units.it
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't