Fig. 3.
LC–MS chromatogram showing retention time 13.98, vitexin (1) 14.51 isovitexin (2) purified from husk aqueous alcoholic extract at 337 nm. ESI–MS spectra of peaks (1a) vitexin ([M−H]−, m/z 431.36), (2a) isovitexin ([M−H]−, m/z 431.35).
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