Cold storage of juçara (Euterpe edulis Martius) fruits: stability of the bioactive compounds and antioxidant activity / Armazenamento à frio de frutos de juçara (Euterpe edulis Martius): estabilidade de compostos bioativos e atividade antioxidante

Danielle Cunha de Souza Pereira, Eliane Maurício Furtado Martins, Maurilio Lopes Martins, André Narvaes da Rocha Campos

Abstract


Euterpe edulis Martius, known as juçara, is a palm tree threatened with extinction. The sustainable use of its perishable fruits, a promising source of bioactive compounds, would help to preserve this plant. In this study the authors evaluated the effect of temperature and storage time on the physicochemical, microbiological and colorimetric characteristics and on the bioactive compounds of the juçara. Major changes were found in the physicochemical and microbiological characteristics of the fruits stored at 5 °C and at 25 °C for 14 days, but fruits stored at -18 °C maintained most of their characteristics throughout 180 days. The bioactive compound was maintained, the antioxidant capacity increased (61%) and the coliform count reduced during this period. The results showed that juçara fruits frozen could be stored for up to 6 months, which is important in order to overcome problems related to the seasonality and short harvesting period of this fruit.


Keywords


phenolic compounds, antioxidant activity, cold storage, anthocyanin, tropical fruit

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References


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DOI: https://doi.org/10.34117/bjdv6n7-072

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