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Analysis of C-glycosyl flavonoids from South American Passiflora species by HPLC-DAD and HPLC-MS.
The methods established are simple and can be used as a tool for the characterisation and quality control of pharmaceutical preparations containing these Passiflora extracts.
HPLC method to assay total saponins in Ilex paraguariensis aqueous extract
Ilex paraguariensis St. Hilaire is a South American tree from which leaves and twigs are used to prepare a commonly consumed tea in several South American countries. The plant is known as “erva-mate”
Experimentally Induced Cholangiohepatopathy by Dosing Sheep with Fractionated Extracts from Brachiaria Decumbens
Cholangiohepatopathy was induced in 5 lambs by oral administration of extracts from signal grass (Brachiaria decumbens) in Brazil. Grossly there were pale foci multifocally distributed throughout the
Isolation of steroidal sapogenins implicated in experimentally induced cholangiopathy of sheep grazing Brachiaria decumbens in Brazil.
The analysis of the B decumbens samples by acidic hydrolysis followed by TLC and infrared spectrum revealed diosgenin as the principal sapogenin present in the plant.
Methylxanthines accumulation in Ilex species - caffeine and theobromine in erva-mate (Ilex paraguariensis) and other Ilex species
The methylxanthines analyses in the leaves of I. paraguariensis and other Ilex species reported as mate adulterants are described and it is suggested that it should be possible to trace adulterations of the genuine I.Paraguarensis using the methodology described herein.
An HPLC-DAD method to quantification of main phenolic compounds from leaves of Cecropia Species
An efficient and reproducible HPLC-DAD method was developed and validated for the simultaneous quantification of major compounds (chlorogenic acid, isoorientin, orientin and isovitexin) present in
Anti‐tumour effects of elatol, a marine derivative compound obtained from red algae Laurencia microcladia
Objectives  This paper aims to evaluate the anti‐tumour properties of elatol, a compound (sesquiterpene) isolated from algae Laurencia microcladia.