A method for extraction and quantification of Ginkgo terpene trilactones
| Autor: | Erqin Chen, Weijia Zhou, Robert C. Lindsay, Chen Ding |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Detection limit
Chromatography biology Ginkgo biloba Plant Extracts Terpenes Ginkgo Extraction (chemistry) biology.organism_classification High-performance liquid chromatography Analytical Chemistry Terpene Plant Leaves chemistry.chemical_compound Lactones Ginkgolides Bilobalide chemistry Diterpenes Chromatography High Pressure Liquid |
| Zdroj: | Analytical chemistry. 76(15) |
| ISSN: | 0003-2700 |
| Popis: | A method was developed for the extraction and quantification of pharmacologically active terpene trilactones (ginkgolides, bilobalide) from the tissues of Ginkgo biloba L. and pharmaceutical ginkgo products by RP-HPLC, based on the theory of terpene trilactones ionization. Four ginkgolides (GA, GB, GC, GJ) and bilobalide (BB) from both the ginkgo leaves and commercially available ginkgo extracts were quantitatively extracted by using this method. The recovery rate of the method was 97.5-100% with RSD of 1.2-2.8%. The detection limit was 0.05-0.1 microg, and the linear range was 0.1-12 microg. This detection limit represents a marked improvement over previously reported methods, suggesting the new method is a viable technique for routine analysis of ginkgo terpene trilactones in natural and commercial samples. The method reported by van Beek et al. in 1991 (van Beek, T. A.; Scheeren, H. A.; Rantio T.; Melger, W. C.; Lelyveld, G. P. J. Chromatogr. 1991, 543, 375-387.) was used as a reference method to monitor the accuracy of extraction and analysis in this study. SSI-MS technique was used to identify isolated target components. Carbohydrase treatment and solubility of terpene trilactones in various solvents were also discussed. |
| Databáze: | OpenAIRE |
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