Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Guy Emmanuel Raoelison"'
Publikováno v:
Food and Chemical Toxicology, Vol. 41 (2003) pp. 29-36
Over the last 10 years, numerous cases of intoxications, leading for the most part to end-stage renal failure, have been reported after consumption of slimming regimens made of Chinese herbal preparations. These intoxications were associated with spe
Autor:
Ferenc Zsila, Miklós Simonyi, Sándor Antus, Kurt Hostettmann, Emerson Ferreira Queiroz, Guy Emmanuel Raoelison, Christian Terreaux, Adolphe Randriantsoa
Publikováno v:
Helvetica Chimica Acta. 84:3470-3476
The stem bark CH2Cl2 extract of Ravensara crassifolia showed antifungal activity against the phytopathogenic fungus Cladosporium cucumerinum in a bioautographic TLC assay. Activity-guided fractionation afforded two new alpha -pyrones : (6S)-5,6-dihyd
Publikováno v:
Planta Medica, Vol. 68 (2002) pp. 856-858
A new method using direct on-line coupling between HPLC and UV-DAD/MS was developed for the rapid detection of aristolochic acid I in plant preparations. The use of both UV-DAD and MS detectors enables this method to be very selective. A ng range det
Publikováno v:
Phytochemical analysis : PCA. 14(1)
The absolute configuration of asymmetric centres of two alpha-pyrones isolated from Ravensara crassifolia was determined using the Mosher method. The conventional analysis of the purified ester derivatives by 1H-NMR was replaced by a rapid and sensit