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Anthocyanin pigments in the berries of baguaçu (Eugenia umbelliflora Berg), a tropical fruit from Brazil, were extracted with 0.1% HCl in ethanol, and the crude anthocyanin extract was purified by Amberlite XAD-7 open-column chromatography. Six major anthocyanins were isolated by preparative HPLC, and their chemical structures were identified by spectroscopic methods (TLC, UV−vis, MS, and ¹H NMR). Delphinidin 3-O-β-glucopyranoside, cyanidin 3-O-β-glucopyranoside, petunidin 3-O-β-glucopyranoside, pelargonidin 3-O-β-glucopyranoside, peonidin 3-O-β-glucopyranoside, and malvidin 3-O-β-glucopyranoside were identified. On the basis of chromatographic data the total anthocyanin content was 342 mg/100 g of fresh baguaçu berries. Therefore, the concomitant presence of six anthocyanins in a single plant species makes this product promising as a new pigment source.

Keywords: Eugenia …