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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual Paulista Júlio de Mesquita Filho
2009
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| Online Access: | https://www.redalyc.org/articulo.oa?id=42913582003 |
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Table of Contents:
- Flavonoid extraction from Alpinia zerumbet (Pers.) Burtt et Smith leaves using different techniques and solvents Cristiane P. Victório Celso Luiz S. Lage Ricardo M. Kuster Química microwave maceration ultrasonic Zingiberaceae High performance liquid chromatography The current study aims to verify the best method for a rapid and efficient extraction of flavonoids from Alpinia zerumbet. Dried leaves were extracted using distillated water and ethanol 70% by extraction methods of shaking maceration, ultrasonic, microwave and stirring. By the application of TLC and reversed-phase HPLC techniques the rutin and kaempferol-3-O-glucuronide were detected. Ethanol 70% was more efficient for flavonoids extraction than water. No significant yielding variation was verified for ultrasonic, microwave and stirring methods using ethanol 70% (11 to 14%). The relative concentration of rutin and kaempferol-3-O-glucuronide, respectively, was higher by ultrasonic (1.5 and 5.62 mg g-1 dried leaves, respectively) and by microwave (1.0 and 6.64 mg g-1 dried leaves) methods using ethanol. Rapid and simplified extraction proceeding optimize phytochemical work and acquisition of secondary metabolites. 2009 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42913582003 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.1 Vol.34