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. 2020 Dec 24;72:105423. doi: 10.1016/j.ultsonch.2020.105423

Table 2.

Selection of type of solvent and concentration of solvent.

Solvent conc. (%) Methanol
Ethanol
Acetone
TPC TFC AOX TPC TFC AOX TPC TFC AOX
(Water) 107.92 ± 2.36e 25.86 ± 0.48c 114.76 ± 0.60d
50 130.41 ± 0.09c 24.62 ± 0.32c 122.78 ± 0.52b 148.23 ± 1.93a 30.56 ± 0.40a 139.83 ± 0.78a 180.91 ± 1.78b 36.59 ± 0.34a 133.13 ± 0.30a
60 153.15 ± 1.91b 26.55 ± 0.27b 120.89 ± 0.20c 121.13 ± 0.87b 27.41 ± 0.44b 128.77 ± 0.50b 185.11 ± 1.01a 35.83 ± 0.19b 129.78 ± 0.55b
70 125.26 ± 1.00d 25.77 ± 0.11c 112.79 ± 0.40e 112.34 ± 1.43c 24.42 ± 0.06c 120.65 ± 0.34c 172.07 ± 1.14c 33.23 ± 0.12c 119.49 ± 0.73c
80 132.92 ± 1.48c 25.12 ± 0.09c 111.70 ± 0.62e 87.66 ± 1.16d 18.77 ± 0.25d 95.24 ± 0.27d 158.99 ± 1.15f 30.02 ± 0.04d 107.10 ± 0.46d
90 110.33 ± 2.02e 20.87 ± 0.14d 102.20 ± 0.27f 63.15 ± 0.75e 11.77 ± 0.10f 74.71 ± 0.76f 128.86 ± 1.21e 22.80 ± 0.20e 76.29 ± 0.58e
100 200.28 ± 1.28a 29.43 ± 0.97a 171.41 ± 0.90a 85.72 ± 1.18d 17.05 ± 0.73e 92.37 ± 0.40e 58.28 ± 1.97f 9.85 ± 0.48f 43.13 ± 0.59f

TPC: total phenolics content, TFC: total flavonoids content, AOX: antioxidant activity. Values are expressed as mean ± Std. deviation (n = 5). In the column, the different small letters of alphabets signify that the mean values belong to distinct subsets at 95% confidence interval.