A comprehensive characterization of Solanum lycocarpum St. Hill and Solanum oocarpum Sendtn: Chemical composition and antioxidant properties

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Aparecida Pereira, Ana Paula ; Figueiredo Angolini, Celio Fernando ; Paulino, Bruno Nicolau ; Chatagnier Lauretti, Leonardo Borges ; Orlando, Eduardo Adilson ; Siqueira Silva, Joyce Grazielle ; Neri-Numa, Iramaia Angelica ; Reis Pimentel Souza, Jane Delane ; Lima Pallone, Juliana Azevedo ; Eberlin, Marcos Nogueira ; Pastore, Glaucia Maria

• Document type: Journal article
• Source: Food Research International; v. 124, p. 9-pg., 2019-10-01.

Abstract

In this study we evaluated the proximate composition of two Solanaceae fruits from Brazilian Cerrado, their mineral content, volatile organic compounds (VOCs), phenolic compounds profile, and antioxidant capacity employing Oxygen Radical Absorbance Capacity (ORAC) assay, for each part of the fruits (pulp, peel and seeds). Our results showed that the pulp has a high moisture content (74.62-85.40 g/100 g) and soluble fiber (L29-2.06 g/100 g) content, and low fat, protein, and ash content. The peel exhibited high levels of carbohydrates and total fibers (6.55-11.39 and 12.35-13.12 g/100 g, respectively), while the seed presented high content of fat, protein, and insoluble fiber (10.14-12.62, 9.14-13.24 and 19.84-23.15 g/100 g). Potassium is the main mineral found in both fruits. It is the first time that the carbohydrate profile, volatile components, and phenolic compounds of the fruta-do-lobo and jud-acu are reported. 1-Kestose (GF2) and nystose (GF3) were found in both fruits. The main VOCs of jud-acu were esters, while in fruta-do-lobo, aldehydes were the major components. UPLC-Q-ToF fraction analysis of jud-acu and fruta-do-lobo revealed 24 phenolic compounds, most being hydroxycinnamic acids derivatives in jua-acu, and chlorogenic acids in fruta-do-lobo. The antioxidant capacity (ORAC) of the fruits ranged from 1.35 to 11.51 mu mol TE/100 mL of extract. These results indicate that Solarium genus can be interesting for the Brazilian fruit market, and that it has potential to be exploited for agroindustry for diversification of fruit products. (AU)

• FAPESP's process: 15/50333-1 - COBRA: a novel compound discovery pipeline for rapid and cost-effective identification of bioactives with health beneficial effects in Brazilian crops
• Grantee: Glaucia Maria Pastore
• Support Opportunities: Research Projects - Thematic Grants