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Representative high-performance liquid chromatography with photodiode array detector (HPLC–PAD) chromatograms of anthocyanidins in (A) blueberry pomace water extracts and (B) 50% ethanolic extracts, and in preparations from commercial standards: (C) delphinidin-cyanidin-pelargonidin-malvidin and (D) petunidin. Approximate elution times: delphinidin 14.1 min, cyanidin 16.3 min, petunidin 17.1 min, pelargonidin 18.3 min, and malvidin 19.2 min.
