Abstract
ABSTRACT Fruits of Euterpe spp. are rich in phenolic compounds, mainly anthocyanins, which are endowed with a high antioxidant capacity. The objective of the study was to evaluate the effects of derivatives from Euterpe spp. fruits on oxidative metabolism and inflammatory mediators. The oil (OE), total lyophilized pulp (LEE) and defatted pulp (LEDE) were obtained from the fruits of Euterpe edulis. Thirty-six animals were divided into four experimental groups: G1: Control; G2: OE (4%), G3: LEE (10%), G4: LEDE (10%), each of which received a particular extract in their diet for 50 days. The activities of catalase, glutathione-S-transferase, superoxide dismutase, malondialdehyde produced in liver and expression of pro-inflammatory cytokines tissue were lower in G4 than in the other groups. The study indicates that dietary supplementation with extracts of E. edulis has no deleterious effects and may be beneficial, especially for LEDE extracts containing high concentrations of anthocyanin.
Highlights
The use of fruits and medicinal plants is an ancient practice that has shown worldwide growth (Ferreira & Pinto, 2010; Rufino et al, 2010)
We evaluated the safety of the administration of OE, lyophilized extract (LEE) and lyophilized and defatted extract (LEDE) of E. edulis supplemented with the standardized diet of male Wistar rats following the guidelines recommended by ANVISA Resolution 16 e 17/99, which establishes basic guidelines for risk assessment and food safety (BRASIL, 1999)
Our results showed that the defatted extract of E. edulis presents a great potential for dietary supplementation due to its capacity to positively modulate the redox potential and to induce the release of inflammatory mediators
Summary
The use of fruits and medicinal plants is an ancient practice that has shown worldwide growth (Ferreira & Pinto, 2010; Rufino et al, 2010). There is increasing interest in naturally occurring antioxidants for use in foods to replace synthetic antioxidants (Kanyaiya, Digambar, Arora, Kapila, & Singh, 2014). In this context, the fruit of the jussara palm tree (Euterpe edulis) is widely distributed in the Brazilian Atlantic Forest, its consumption and processing is not as well explored in the different regions as that of another palm tree fruit known as açaí (Euterpe oleraceae) (Sousa De Brito et al, 2007). The final product of jussara fruit processing is a thick purple pulp with considerable nutritional value that can be used in the manufacturing of a variety.
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