Plinia trunciflora and Plinia cauliflora: two species rich in bioactive compounds, terpenes, and minerals
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Jabuticaba is a native fruit from the Brazilian Atlantic Forest. The fruit is commercialized in Brazil and in the world in its fresh and processed forms due to its attractive colour and flavour. The objective of this study was to quantify the chemical properties and bioactive compounds in fruits from two jabuticaba species that have rarely been study, ‘Pêndula’ (Plinia trunciflora) and ‘Ponhema’ (Plinia cauliflora). Extracts of jabuticaba fruits species ‘Pêndula’ and ‘Ponhema’ were evaluated by SPME combined with GC–MS for volatile compounds. Organic acids, sugars, and ascorbic acid were determined by HPLC. Minerals were determined by ICP-OES, phenolic content, antioxidant capacity (DPPH and ORAC assay), and centesimal composition were assayed on the same jabuticabas extracts. Jabuticaba ‘Pêndula’ presented higher levels of ash (4.26 g 100 g−1), lipids (1.21 g 100 g−1), proteins (5.07 g 100 g−1), dietary fibers (29.73 g 100 g−1) and minerals (1122.91 mg 100 g−1). Jabuticaba ‘Ponhema’ expressed higher amounts of total monomeric anthocyanins (TMA) (0.10 g 100 g−1), total flavonoids (0.08 g 100 g−1) and total phenolic compounds (0.43 g 100 g−1). These two species had high antioxidant capacity (5.73–9.12 mmol trolox 100 g−1 by DPPH method and 23.54–71.16 mmol trolox 100 g−1 by ORAC method). There were found 37 new compounds, mainly terpenes (67%), that have not been previously described in jabuticaba fruit. Jabuticaba ‘Pêndula’ and ‘Ponhema’ fruits can be beneficial to the human diet and potentially serve as raw material for industrial purposes.
KeywordsBrazilian Atlantic Forest Composition Dietary fiber HPLC SPME-CG
The authors thank grants #2014/13473-7 and #2013/07914-8, São Paulo Research Foundation (FAPESP), Coordination for the Improvement of Higher Education Personnel (CAPES), and the National Council for Scientific and Technological Development (CNPq, research productivity grant #308521/2015-3 and the research funding grant #458123/2014-5), which provided financial support and a scholarship for the development of this study. The authors are also grateful to Sérgio Sartori (Estância das Frutas), fruit farmer of Rio Claro, São Paulo, for providing the jabuticaba fruits used in the study.
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Conflict of interest
The authors have no conflict of interest to report.
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