Extraction of bioactive compounds from pomegranate peel (Punica granatum L.) with pressurized liquids assisted by ultrasound combined with an expansion gas
| Autor: | Laise C. da Silva, Rosangela Maria Neves Bezerra, Mariana P. A. Santos, Beatriz Rocchetti Sumere, Diogo Timotheo da Cunha, Mariana Corrêa de Souza, Mauricio A. Rostagno |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Acoustics and Ultrasonics 02 engineering and technology Chemical Fractionation 010402 general chemistry 01 natural sciences Inorganic Chemistry Sonication Phenols Pressure Chemical Engineering (miscellaneous) Environmental Chemistry Radiology Nuclear Medicine and imaging Lythraceae Chromatography High pressure water biology business.industry Organic Chemistry Ultrasound Extraction (chemistry) 021001 nanoscience & nanotechnology biology.organism_classification 0104 chemical sciences Solvent Punica Yield (chemistry) Cavitation Particle size Gases 0210 nano-technology business |
| Zdroj: | Ultrasonics sonochemistry. 54 |
| ISSN: | 1873-2828 |
| Popis: | In this study it is proposed the introduction of an expansion gas in high pressure water to maximize the cavitation caused by the application of ultrasound to improve the extraction of phenolic compounds from pomegranate peel. Different combinations of ultrasound power (US-Pwr), expansion gas initial pressure (N2-Pi), system pressure (SP) and particle size of sample were evaluated using water as solvent. The use of US-Pwr and N2-Pi individually or combined improved the extraction process proving higher yields. SP was an important parameter affecting extraction yield, showing an inverse relation between its increase and extraction yield. Although higher yields were produced with samples with smaller particles, the combination of ultrasound and expansion gas had a positive effect on the process independently of particle size, promoting an increase of 20-26% in yield. These results suggest an enormous potential to be explored with the introduction of an expansion gas in pressurized liquids in processes assisted by ultrasound for the extraction of phenolic compounds from natural products using green solvents. |
| Databáze: | OpenAIRE |
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