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Table 3 Phenolics identified by RP-HPLC analysis (at \( \lambda \) = 280 nm) of the methanolic extracts of Fagonia indica, Calotropis procera, Zygophyllum hamiense and S.imbricata

From: Impact of phenolic composition on hepatoprotective and antioxidant effects of four desert medicinal plants

Retention time

Identified constituent

Relative area %

F. indica

C. procera

Z. hamiense

S. imbricata a

6.81

Pyrogallol

0.145

0.173

1.94

-

6.92

Gallic acid

0.05

0.27

2.02

0.145

8.235

Protocatechuic acid

0.12

0.504

0.97

0.068

8.444

Catechin

-

0.38

1.81

0.461

8.593

Chlorogenic acid

0.46

0.12

2.31

0.377

8.950

Catechol

0.16

0.44

2.57

0.329

10.040

Caffeic acid

0.25

-

1.54

1.759

11.073

Vanillic acid

0.37

0.82

1.37

0.286

11.620

Ferulic acid

0.34

0.36

0.84

1.323

12.466

Salicylic acid

0.73

1.53

1.1

1.154

12.943

Ellagic acid

1.20

1.20

-

-

13.127

Benzoic acid

1.02

1.59

1.51

2.306

13.789

Coumaric acid

0.51

0.52

1.2

4.251

14.980

Cinnamic acid

0.81

0.95

-

0.371

18.657

Chrysin

1.79

1.44

0.34

1.074

Total identified constituents

7.955

10.297

19.52

13.904

  1. aResults previously reported [39]