Identification and quantification of phenolic composition from different species of Jabuticaba (Plinia spp.) by HPLC-DAD-ESI/MSn

The aim of this study was to investigate phenolic compounds in peel, pulp and seeds of five different jabuticabas - Plinia trunciflora, cabinho, P. cauliflora, cultivars paulista and canaa-acu, P. jaboticaba, sabara and P. phitrantha, branca-vinho. In addition to the commonly reported cyanidin-3-glucoside and delphinidin3-glucoside, it was also found the unreported cyanidin-3-coumaroylglucoside in the peels. Flavonols derived from quercetin and myricetin were also detected in jaboticaba peels, along with a wide variety of derivatives of ellagic acid and methyl ellagic acid. The latter derivatives occurred in acylated forms, which were not usually found in jabuticabas. The pulps and seeds of jabuticabas contained large amounts of ellagitannins vescalagin and castalagin, as well as gallic and ellagic acids. The jabuticabas showed small amounts of catechin and gallocatechin. P. jaboticaba showed the highest levels of anthocyanins and flavonols derived from myricetin, and P. phitrantha presented the highest concentration of ellagitannins and flavan-3-ols.

Automated summary

This study found that jabuticabas contain a variety of phenolic compounds, with the peels containing cyanidin-3-coumaroylglucoside, flavonols, ellagic acid derivatives, and methyl ellagic acid derivatives. The pulps and seeds are rich in ellagitannins, gallic acid, and catechin. Different jabuticaba varieties have varying levels of anthocyanins, flavonols, ellagitannins, and flavan-3-ols.