A simple laboratory procedure for the isolation of pure cafestol and 16-O-methylcafestol together with beta-sitosterol from coffee is disclosed. Cafestol and 16-O-methylcafestol have been exhaustively characterized through 1D and 2D H-1, C-13 NMR, CD and X-ray diffraction. For the first time, the molecular structure of cafestol is reported and the assignment of the absolute configuration is unequivocally given by exploiting anomalous scattering of a brominated derivative.
Isolation and characterization of major diterpenes from C. canephora roasted coffee oil
GUERCIA, ELENA;BERTI, FEDERICO;DEMITRI, NICOLA;FORZATO, Cristina
2016
Abstract
A simple laboratory procedure for the isolation of pure cafestol and 16-O-methylcafestol together with beta-sitosterol from coffee is disclosed. Cafestol and 16-O-methylcafestol have been exhaustively characterized through 1D and 2D H-1, C-13 NMR, CD and X-ray diffraction. For the first time, the molecular structure of cafestol is reported and the assignment of the absolute configuration is unequivocally given by exploiting anomalous scattering of a brominated derivative.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
TA_2016.pdf
non disponibili
Descrizione: articolo principale
Tipologia:
Documento in Versione Editoriale
Licenza:
Digital Rights Management non definito
Dimensione
2.06 MB
Formato
Adobe PDF
|
2.06 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
|
revised_manuscript_Forzato.pdf
embargo fino al 20/06/2018
Tipologia:
Bozza finale post-referaggio (post-print)
Licenza:
Creative commons
Dimensione
458.08 kB
Formato
Adobe PDF
|
458.08 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
