Optimized Extraction of Resveratrol from Arachis repens Handro by Ultrasound and Microwave: A Correlation Study with the Antioxidant Properties and Phenol Contents

Figure 1

(a) Effect of the time exposure efficiency on the -resveratrol contents in extracts obtained by maceration with 80% methanol (0.1 g per 4 mL), correlated to the radical-scavenging activity. (b) Effect of the resveratrol contents in extracts obtained by ultrasound with 80% methanol (0.1 g per 4 mL) correlated to the radical-scavenging activity. (c) Effect of the time efficiency maceration before treatment on the resveratrol contents in extracts obtained by maceration with 80% methanol (0.1 g per 4 mL) previously exposed to ultrasound for 5 minutes, correlated to the radical-scavenging activity. (d) Correlation of resveratrol contents in extracts at different proportions of solid-solvent, obtained by ultrasound, correlated to the radical-scavenging activity. Means ± standard error followed by the same letter are not statistically different at , Tukey-Kramer test.

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