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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]