| Autor: |
Duquesnoy E; Université de Corse, Equipe Chimie et Biomasse, UMR CNRS 6134, Route des Iles Sanguinaires, 20000 Ajaccio, France., Castola V, Casanova J |
| Jazyk: |
angličtina |
| Zdroj: |
Carbohydrate research [Carbohydr Res] 2008 Apr 07; Vol. 343 (5), pp. 893-902. Date of Electronic Publication: 2008 Jan 12. |
| DOI: |
10.1016/j.carres.2008.01.001 |
| Abstrakt: |
We developed a method for the direct identification and quantification of carbohydrates in raw vegetable extracts using (13)C NMR spectroscopy without any preliminary step of precipitation or reduction of the components. This method has been validated (accuracy, precision and response linearity) using pure compounds and artificial mixtures before being applied to authentic ethanolic extracts of pine needles, pine wood and pine cones and fir twigs. We determined that carbohydrates represented from 15% to 35% of the crude extracts in which pinitol was the principal constituent accompanied by arabinitol, mannitol, glucose and fructose. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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