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Table 1 The contents of six standard chemicals of EXD in three injections of EXD-S and EXD-C

From: Comparison of chemical profiles and effectiveness between Erxian decoction and mixtures of decoctions of its individual herbs: a novel approach for identification of the standard chemicals

Injection

Mangiferin (mg/g)

Ferulic acid (mg/g)

Icariin (mg/g)

Jatrorrhizine (mg/g)

Palmatine (mg/g)

Berberine (mg/g)

EXD-S1

1.368

0.4871

1.731

0.1004

1.083

1.615

EXD-S2

1.371

0.4896

1.744

0.1010

1.090

1.617

EXD-S3

1.382

0.4996

1.745

0.1014

1.092

1.628

Mean

1.374

0.4921

1.740

0.1010

1.089

1.620

RSD (%)

0.57

1.34

0.46

0.48

0.46

0.43

EXD-C1

0.6581

0.1983

1.498

0.02865

0.03577

1.000

EXD-C2

0.6610

0.1980

1.493

0.03009

0.03661

1.001

EXD-C3

0.6583

0.2034

1.479

0.02947

0.03592

1.003

Mean

0.6591

0.1999

1.490

0.02940

0.03610

1.001

RSD (%)

0.24

1.53

0.65

2.45

1.23

0.17

Mean ratio

2.085

2.462

1.168

3.435

30.17

1.618

  1. The results are expressed as mg or chemicals per g of EXD extract. RSD values were calculated for each chemical from three injections and the mean ratio represents the ratio of amount of chemicals in EXD-S to that of EXD-C