Ultrasound-assisted extraction of polyphenols from native plants in the Mexican desert
| Autor: | Jorge Enrique Wong Paz, Diana B. Muñiz Márquez, Cristóbal N. Aguilar, Ruth Belmares Cerda, Guillermo Cristian Guadalupe Martínez Ávila |
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| Rok vydání: | 2012 |
| Předmět: |
Antioxidant
Time Factors Acoustics and Ultrasonics medicine.medical_treatment Chemical Fractionation Ultrasound assisted Antioxidants Inorganic Chemistry Sonication Biological property medicine Chemical Engineering (miscellaneous) Environmental Chemistry Radiology Nuclear Medicine and imaging Response surface methodology Mexico Chromatography Ethanol Chemistry fungi Organic Chemistry Extraction (chemistry) Temperature food and beverages Polyphenols Native plant Plants Solvent Polyphenol Feasibility Studies Desert Climate |
| Zdroj: | Ultrasonics sonochemistry. 22 |
| ISSN: | 1873-2828 |
| Popis: | Several plants that are rich in polyphenolic compounds and exhibit biological properties are grown in the desert region of Mexico under extreme climate conditions. These compounds have been recovered by classic methodologies in these plants using organic solvents. However, little information is available regarding the use of alternative extraction technologies, such as ultrasound. In this paper, ultrasound-assisted extraction (UAE) parameters, such as the liquid:solid ratio, solvent concentration and extraction time, were studied using response surface methodology (RSM) for the extraction of polyphenols from desert plants including Jatrophadioica,Flourensiacernua, Turneradiffusa and Eucalyptuscamaldulensis. Key process variables (i.e., liquid:solid ratio and ethanol concentration) exert the greatest influence on the extraction of all of the phenolic compounds (TPC) in the studied plants. The best conditions for the extraction of TPC involved an extraction time of 40min, an ethanol concentration of 35% and a liquid:solid ratio ranging from 8 to 12mlg(-1) depending on the plant. The highest antioxidant activity was obtained in the E. camaldulensis extracts. The results indicated the ability of UAE to obtain polyphenolic antioxidant preparations from desert plants. |
| Databáze: | OpenAIRE |
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