1. Commercial and laboratory extracts from artichoke leaves: estimation of caffeoyl esters and flavonoidic compounds content
- Author
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C. Giaccherini, D. Prucher, Nadia Mulinacci, M Peruzzi, Annalisa Romani, Franco Francesco Vincieri, and Patrizia Pinelli
- Subjects
Clinical Biochemistry ,Herbal extracts ,Flavonoid ,Pharmaceutical Science ,High-performance liquid chromatography ,Analytical Chemistry ,law.invention ,Matrix (chemical analysis) ,chemistry.chemical_compound ,Caffeic Acids ,law ,Cynara scolymus ,Drug Discovery ,Caffeic acid ,Artichoke leaf extract ,Caffeic acids ,Flavonoids ,HPLC/DAD and HPLC/MS ,Chromatography, High Pressure Liquid ,Spectroscopy ,chemistry.chemical_classification ,Chromatography ,Traditional medicine ,Plant Extracts ,food and beverages ,Esters ,Plant Leaves ,chemistry ,Pharmacopoeia ,Hplc dad - Abstract
Artichoke leaf extracts are widely used alone or in association with other herbs for embittering alcoholic and soft drinks and to prepare herbal teas or herbal medicinal products. Despite this wide diffusion, the European Pharmacopoeia does not report an official method for the determination of the active principles of artichoke leaf extracts. This work reports a quali-quantitative determination by HPLC/DAD and HPLC/MS techniques of both cynnamic acids and flavonoids present in some artichoke leaf commercial extracts (Com) compared with two different laboratory extracts (Lab). Most of the commercial extracts showed a similar quali-quantitative pattern with a single exception having five-six times higher value. The quantitative data from the Italian Pharmacopoeia(IP) official method does not evaluate the flavonoidic fraction and showed an overestimation of the caffeoyl esters with respect to the HPLC/DAD results. The proposed HPLC/DAD method was able to completely characterize and quantify this matrix and represents a contribution to better quality control of these herbal extracts.
- Published
- 2004
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