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| Titel: |
The Application of NMR Techniques to the Study of Polysaccharides from Pulp and Latex of Sorva |
| Auteur: |
Nascimento, Alessandra M. R. Tavares, Maria Ines Bruno |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 56 (2007) nr. 2 pagina's 115-125 |
| Jaar: |
2007-02-01 |
| Inhoud: |
The determination of the chemical components in the pulp and latex of unripe sorva fruit (Couma utilis) is very important to control the changes during ripening and storage life of polysaccharides from sorva fruit. According to this, the pulp and latex components have been investigated by nuclear magnetic resonance (NMR), using 13C solution and solid state and proton relaxation times, because this spectroscopy is non-destructive and it is very valuable for the study of complex mixtures. The pulp components were studied by 13C solution NMR through the extraction products, employing solvents with different polarities. The entire fruit was dehydrated in an oven with circulating air at 80°C and analyzed by 1H and 13C solid-state NMR techniques. The Latex was soluble in chloroform and the 13C solution NMR spectra was recorded, in order to characterize the major chemical components of this mixture. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 9 van 10 gevonden artikelen
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