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  Indian J Med Microbiol
 

Figure 3: High performance liquid chromatography profiles for Alpinia officinarum Hance extract and four flavonoid standards (a) and chemical structures and molecular weights of four flavonoid standards (b). High-performance liquid chromatography profiles for Alpinia officinarum Hance extract (green line) and four reference standards of quercetin (brown line), kaempferol (pink line), galangin (blue line), and curcumin (black line).

Figure 3: High performance liquid chromatography profiles for <i>Alpinia officinarum</i> Hance extract and four flavonoid standards (a) and chemical structures and molecular weights of four flavonoid standards (b). High-performance liquid chromatography profiles for <i>Alpinia officinarum</i> Hance extract (green line) and four reference standards of quercetin (brown line), kaempferol (pink line), galangin (blue line), and curcumin (black line).