Please use this identifier to cite or link to this item:
https://repositorio.ufpa.br/jspui/handle/2011/6973| metadata.dc.type: | Artigo de Periódico |
| Issue Date: | 2007 |
| metadata.dc.creator: | SOUZA, Jesus Nazareno Silva de SILVA, Evaldo Martins da SILVA, Milton Nascimento da ARRUDA, Mara Silvia Pinheiro LARONDELLE, Yvan ROGEZ, Hervé Louis Ghislain |
| Title: | Identification and antioxidant activity of several flavonoids of Inga edulis leaves |
| Citation: | SOUZA, Jesus Nazareno Silva de et al. Identification and antioxidant activity of several flavonoids of Inga edulis leaves. Journal of the Brazilian Chemical Society, São Paulo, v. 18, n. 6, p. 1276-1280, 2007. Disponível em: <http://www.scielo.br/pdf/jbchs/v18n6/a25v18n6.pdf>. Acesso em: 6 nov. 2015. <http://dx.doi.org/10.1590/S0103-50532007000600025>. |
| metadata.dc.description.resumo: | Um extrato metanol-água das folhas de Inga edulis foi fracionado para identificar os compostos polifenólicos. Os compostos identificados foram o acido gálico, a catequina, a epicatequina, a miricetina-3-ramnopiranosídeo, a quercetina-3-glucopiranosídeo e a quercetina-3-ramnopiranosídeo. A capacidade antioxidante do extrato e dos polifenóis puros foi medida pelo teste ORAC e comparada com o teor em fenólicos totais (TP). O extrato bruto seco apresentou valores de ORAC (11.16 mmol TE per g) e TP (496.5 mg GAE per g) muito altos. Os compostos identificados foram responsáveis, respectivamente, por 9.53 % e 12.10 % dos valores ORAC e de TP do extrato de folhas de Inga edulis. |
| Abstract: | A methanol-water extract of Inga edulis leaves was fractionated to identify the polyphenolic compounds. The identified compounds were gallic acid, catechin, epicatechin, myricetin-3-rhamnopyranoside, quercetin-3-glucopyranoside and quercetin-3-rhamnopyranoside. The antioxidant activity of the extract and of pure polyphenols was measured by the ORAC assay and compared with the Total Phenolic (TP) content. The dry crude extract presented very high values for ORAC (11.16 mmol TE per g) and TP (496.5 mg GAE per g). The identified compounds were responsible for 9.53 % and 12.10 % of the ORAC value and TP content of the Inga edulis leaf extract, respectively. |
| Keywords: | Atividade antioxidante Inga edulis Compostos polifenólicos Teste ORAC |
| ISSN: | 1678-4790 |
| metadata.dc.rights: | Acesso Aberto |
| Appears in Collections: | Artigos Científicos - FAQUI/ICEN |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| Artigo_IdentificationAntioxidantActivity.pdf | 378,9 kB | Adobe PDF | View/Open |
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