Demonstration of long‐chain  n‐ alkyl caffeates and Δ 7 ‐steryl glucosides in the bark of  Acacia  species by gas chromatography–mass spectrometry | Zendy

Freire Carmen S. R. | Zendy; Silvestre Armando J. D. | Zendy; Neto Carlos Pascoal | Zendy

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Demonstration of long‐chain n‐ alkyl caffeates and Δ 7 ‐steryl glucosides in the bark of Acacia species by gas chromatography–mass spectrometry

Author(s) -

Freire Carmen S. R.,

Silvestre Armando J. D.,

Neto Carlos Pascoal

Publication year - 2007

Publication title -

phytochemical analysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 72

eISSN - 1099-1565

pISSN - 0958-0344

DOI - 10.1002/pca.964

Subject(s) - chemistry , alkyl , dichloromethane , bark (sound) , chromatography , homologous series , gas chromatography–mass spectrometry , mass spectrometry , glucoside , gas chromatography , organic chemistry , trimethylsilyl , acacia , botany , solvent , medicine , physics , alternative medicine , pathology , acoustics , biology

The GC‐MS identification of several abundant long‐chain aliphatic n ‐alkyl caffeates, together with other p‐ hydroxycinnamic acid esters, in the dichloromethane extracts of the bark of Acacia dealbata and A. melanoxylon , is reported. In addition, the unambiguous differentiation between two Δ 7 ‐steryl glucosides (namely, spinasteryl glucoside and dihydrospinasteryl glucosides) and the homologous Δ 5 ‐steryl glucosides was achieved based on the EI‐MS fragmentation features of their trimethylsilyl derivatives. Copyright © 2007 John Wiley & Sons, Ltd.

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