Determination of the content of ascorbic acid and antioxidant potential of fruit Buchenavia tomentosa Eichler

Elisa Tatiana Silva Damasceno, Regiamara Ribeiro Almeida, Bruna Carneiro Pires, Flávia Viana Avelar Dutra, Keyller Bastos Borges, Luiz Gustavo de Lima Guimarães

Resumo


In this study, five different extractive solutions were used to evaluate the ascorbic acid content of the in natura and lyophilized pulps of the Buchenavia tomentosa Eichler fruits. In addition, the lyophilized extract was submitted to different tests to determine the antioxidant activities. The fruit pulps presented ascorbic acid contents between 7315.70 and 13272.63 in fresh pulp and between 1337.67 to 1503.33 mg 100 g-1 in the lyophilized pulp. The content of total phenolic compounds was 161.58 ± 24.69 mg of gallic acid/g and of flavonoids equal to 5.93 ± 0.40 mg quercetin/100 g of pulp. The obtained antioxidant activities in the DPPH and FRAP assays were 50.29 ± 0.61 g spares / g DPPH and 3303.81 ± 50.47 mM ferrous sulfate / g, respectively. In contrast, for the β-carotene/linoleic acid system the sample behaved as a pro-oxidant because of the high content of ascorbic acid.

Palavras-chave


Mirindiba; Vitamin C; Extraction Conditions; Antioxidant activity



Creative Commons License
A Revista Virtual de Química está licenciada sob as condições do Creative Commons Atribuição-Uso Não-Comercial-Compartilhamento pela mesma Licença 2.5 Brasil License. Sob esta licença, a RVQ permite que seu conteúdo seja copiado, distribuído, exibido e executado desde que os devidos créditos à Revista e aos autores sejam dados. Contudo, o usuário não poderá utilizar o conteúdo com finalidades comerciais, a menos que obtenha permissão da Editoria da Revista.
Visitantes Online