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Table 2 Chemical contents of five RC extracts

From: Antioxidant activity and mechanism of Rhizoma Cimicifugae

Extracts PERC EARC AERC 95ERC WRC
Total phenolics (mg Pyr./g) 13.17 ± 0.43a 65.01 ± 0.34 d 15.73 ± 0.34 b 31.10 ± 1.30 c 12.46 ± 1.00 a
Total sugars (mg Glucose/g) 237.16 ± 38.67 a 175.46 ± 21.50 a 624.75 ± 17.62 b 603.48 ± 18.74 b 804.54 ± 50.53 c
Total saponins (mg Ole./g) 917.52 ± 87.83 c 379.46 ± 15.46 b 185.16 ± 4.10 a 180.44 ± 1.95 a 198.34 ± 12.30 a
Caffeic acid (peak area) 2.96 ± 0.85 a 125.22 ± 8.84 c 6.45 ± 2.93 b 14.19 ± 10.14 b 2.79 ± 1.23 a
Ferulic acid (peak area) 0.89 ± 0.44 c 79.31 ± 3.22 d 0.39 ± 0.37 b 0.68 ± 1.18 c 0.0040 ± 0.0010 a
Isoferulic acid (peak area) 4.92 ± 1.68 a 33.24 ± 0.44 d 12.77 ± 2.56 c 8.68 ± 0.28 b --
  1. Each value is expressed as mean ± SD (n = 3). Means values with different superscripts in the same row are significantly different (p < 0.05), while with same superscripts are not signifiacntly different (p > 0.05). PERC, petroleum ether extract of rhizoma Cimicifugae; EARC, ethyl acetate extract of rhizoma Cimicifugae; AERC, absolute ethanol extract of rhizoma Cimicifugae; 95ERC, 95% ethanol extract of rhizoma Cimicifugae; WRC, water extract of rhizoma Cimicifugae. --: Below the detection limit. Pyr., pyrogallo; Ole., Oleanic acid.