| Autor: |
Flávia Viana Avelar Dutra, Luiz Gustavo de Lima Guimarães, Bruna Carneiro Pires, Regiamara Ribeiro Almeida, Elisa Tatiana Silva Damasceno, Keyller Bastos Borges |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Revista Virtual de Química. 11:771-784 |
| ISSN: |
1984-6835 |
| DOI: |
10.21577/1984-6835.20190056 |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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