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  Indian J Med Microbiol
 

Figure 1: Chromatogram of standard solution analyzed by HPLC, at flow rate of 1 mL.min-1, gradient system: acetic acid 2% from 0 to 5 minutes, addition of 5% acetonitrile-water-acetic acid (50:48:2 v/v) and linear increase up to 25% from 5 to 15 minutes, then up to 100% from 15 to 60 minutes. 1- Gallic acid; 2-Catechin; 3- Chlorogenic acid; 4-Epicatechin; 5-Rutin; 6-Luteolin

Figure 1: Chromatogram of standard solution analyzed by HPLC, at flow rate of 1 mL.min<sup>-1</sup>, gradient system: acetic acid 2% from 0 to 5 minutes, addition of 5% acetonitrile-water-acetic acid (50:48:2 v/v) and linear increase up to 25% from 5 to 15 minutes, then up to 100% from 15 to 60 minutes. 1- Gallic acid; 2-Catechin; 3- Chlorogenic acid; 4-Epicatechin; 5-Rutin; 6-Luteolin