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

Table 1

Total phenolic compounds contents in GAE proceeding from different extracts obtained from the leaves of A. repens measured by the Folin-Ciocalteu method.

Entry	Extraction conditions
	Maceration (80% MeOH aq.) (v/v) and 1 : 40 (solid : liquid)	GAE contents on extracts obtained by; different times of maceration exposure
		Time; (hours)	GAE (500 mg/g)
1		0.5
2		1
3		2
4		3
	Ultrasound (80% MeOH aq.) (v/v) and 1 : 40 (solid : liquid)	GAE contents on extracts obtained; by different times of ultrasound exposure
		Time; (minutes)	GAE (500 mg/g)
5		5
6		10
7		20
8		30
	Maceration + ultrasound (5 min)  (80% MeOH aq.) (v/v) and 1 : 40 (solid : liquid)	GAE contents on extracts obtained; by different times of maceration exposure
		Time; (minutes)	GAE (500 mg/g)
9		5
10		10
11		20
12		30
	Maceration (5 min) + ultrasound (5 min)  (80% MeOH aq.) (v/v) in different ratios (solid-solvent) (g/mL)	GAE contents of extracts obtained by different ratios; (solid-solvent) of maceration and ultrasound exposure
		Relation; (solid-solvent)	GAE (500 mg/g)
13		1 : 20
14		1 : 30
15		1 : 40
16		1 : 50

Means ± standard error followed by the same letter within each column are not significantly different at , Tukey-Kramer test.