DETERMINATION OF THE COMPOSITION OF COMMERCIAL TANNIN EXTRACTS BY LIQUID SECONDARY-ION MASS-SPECTROMETRY (LSIMS)

Authors
VIVAS N BOURGEOIS G VITRY C GLORIES Y DEFREITAS V
Citation
N. Vivas et al., DETERMINATION OF THE COMPOSITION OF COMMERCIAL TANNIN EXTRACTS BY LIQUID SECONDARY-ION MASS-SPECTROMETRY (LSIMS), Journal of the Science of Food and Agriculture, 72(3), 1996, pp. 309-317
Citations number
52
Categorie Soggetti
Agriculture,"Food Science & Tenology
Journal title
Journal of the Science of Food and Agriculture → ACNP
ISSN journal
00225142
Volume
72
Issue
3
Year of publication
1996
Pages
309 - 317
Database
ISI
SICI code
0022-5142(1996)72:3<309:DOTCOC>2.0.ZU;2-K
Abstract
The composition of various commercial tannin extracts were determined by liquid secondary ion mass spectrometry (LSIMS). Spectra were obtain ed directly from tannin extracts without any pre-separation. Eight dif ferent tannin powders were analysed: three gallotannins (Chinese, Turk ish, tara), three ellagitannins (sweet chestnut, pendunculata oak, ses sile oak), one mixed hydrolysable tannin (myrabolans) and one proantho cyanidin (grape seeds). This method enabled the main molecules in thes e powders to be identified.