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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

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  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.