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Optimization of Ultrasound-Assisted Extraction of Polyphenols from Myrtus communis L. Pericarp

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Academic year: 2021

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Figure

Table 1. Central composite design with the observed responses and predicted values for yield of total phenolic compounds of Myrtus communis pericarp using the UAE method.
Table 2. Estimated regression coefficients for the quadratic polynomial model and analyzes of variance (ANOVA) for the experimental results.
Figure 1. Response surface analysis for the Total phenolic compounds (TPC) with UAE with respect  to: (a) ethanol concentration and irradiation time; (b) ethanol concentration and amplitude; (c) ethanol  concentration and solvent-to-solid ratio; (d) extrac
Table 3. Comparison of extraction yield of polyphenols obtained by optimized ultrasound-assisted (UAE-OPT), microwave-assisted (MAE) and conventional solvent (CSE) methods
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