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  Indian J Med Microbiol
 

Figure 1: Representative high performance liquid chromatography chromatograms of leaf extracts of (a) Hanguana malayana (b) Ludwigia adscendens and (c) Monochoria hastata. Signals were collected at 280 nm for the detection of hydroxybenzoic acids. (1) Gallic acid; (2) protocatechuic acid; (3) p-hydroxybenzoic acid; (4) vanilic acid

Figure 1: Representative high performance liquid chromatography chromatograms of leaf extracts of (a) <i>Hanguana malayana</i> (b) <i>Ludwigia adscendens</i> and (c) <i>Monochoria hastata.</i> Signals were collected at 280 nm for the detection of hydroxybenzoic acids. (1) Gallic acid; (2) protocatechuic acid; (3) <i>p</i>-hydroxybenzoic acid; (4) vanilic acid