Des brais de bouleau (Betula sp.) ont été reconnus dans les dépôts du Néolithique moyen
de Giribaldi à Nice (Alpes-Maritimes, France) sous forme d agrégats ou bien adhérant à des …

Several fractions of oligomeric and polymeric procyanidins have been obtained from grape
seeds by gel chromatography on Fractogel TSK. Their molecular weights (Mw) were directly …

The (+)-catechin−acetaldehyde condensation was studied as a model for tannin polymerization
and precipitation in red wines. It was shown by using LSIMS that reaction products are …

The presence of carotenoids (principally β-carotene and lutein) in oak wood is an important
factor when selecting wood for barrel making. Amounts are generally small and vary …

The composition of various commercial tannin extracts were determined by liquid secondary
ion mass spectrometry (LSIMS). Spectra were obtained directly from tannin extracts without …

A new alkaloid of Aconitum karacolicum Rapcs, from the Ranunculaceae family, collected in
Kirghizstan, was isolated from the roots of this plant, using a purification scheme based …

Two major ellagitannins from Quercus robur, vescalagin and castalagin, were studied by 1
HNMR and LSI-mass spectrometry, and molecular mechanics. A plausible 3D-structure is …

This paper introduces a new fractionation method by selective extractions and precipitations
making it possible to collect the three groups of oak heartwood extractable polymers in a …

The synthesis of new chiral nicotinamide adenine dinucleotide hydrogenated models derived
from quinoline is described. Using a biomimetic approach, the out-of-plane positioning of …

Different thymidine derivatives bearing either an iodoaryl moiety at the 5′ position or a
dialkylsilyl group at the 3′ position have been efficiently synthesized as precursors for carbon-…