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Ultrasound and Microwave Assisted Extraction of Opuntia Fruit Peels Biocompounds: Optimization and Comparison Using RSM-CCD.
- Source :
-
Molecules (Basel, Switzerland) [Molecules] 2019 Oct 08; Vol. 24 (19). Date of Electronic Publication: 2019 Oct 08. - Publication Year :
- 2019
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Abstract
- Ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) of bioactive compounds, peels from Opuntia engelmannii cultivar (cv.) Valencia were optimized by response surface methodology. Randomized extraction runs were performed for each of the technologies employed in order to build effective models with maximum (bioactive molecules content and yield) and minimum (antioxidant activity) responses. A 5-level, 4-factor central composite design was used to obtain target responses as a function of extraction time ( t ), solid to liquid ratio (S/L), methanol concentration ( metOH ), and temperature ( T ). Specific response optimization for each technology was analyzed, discussed, and general optimization from all the responses together was also gather. The optimum values for each factor were: t = 2.5 and 1.4 min, S/L = 5 and 5 g/L, metOH = 34.6 and 0% of methanol and T = 30 and 36.6 °C, achieving maximum responses of 201.6 and 132.9 mg of betalains/g, 13.9 and 8.0 mg of phenolic acids/g, 2.4 and 1.5 mg of flavonoids/g, 71.8% and 79.1% of extractable solid and IC <subscript>50</subscript> values for the antioxidant activity of 2.9 and 3.6, for UAE and MAE, respectively. The present study suggested UAE as the best extraction system, in order to maximize recovery of bioactive compounds with a high antioxidant activity.
- Subjects :
- Antioxidants chemistry
Antioxidants isolation & purification
Antioxidants pharmacology
Betacyanins chemistry
Betacyanins isolation & purification
Chemical Fractionation methods
Chromatography, High Pressure Liquid
Flavonoids
Molecular Weight
Phenols
Phytochemicals pharmacology
Plant Extracts pharmacology
Solvents
Fruit chemistry
Microwaves
Opuntia chemistry
Phytochemicals chemistry
Phytochemicals isolation & purification
Plant Extracts chemistry
Plant Extracts isolation & purification
Ultrasonic Waves
Subjects
Details
- Language :
- English
- ISSN :
- 1420-3049
- Volume :
- 24
- Issue :
- 19
- Database :
- MEDLINE
- Journal :
- Molecules (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 31597259
- Full Text :
- https://doi.org/10.3390/molecules24193618