期刊论文详细信息
Journal of the Brazilian Chemical Society
Identification and antioxidant activity of several flavonoids of Inga edulis leaves
Silva, Evaldo M.1  Institut des Sciences de la Vie, Louvain-la-Neuve, Belgium1  Université catholique de Louvain1  Silva, Milton N. da1  Universidade Federal do Pará1  Arruda, Mara S. P.1  Larondelle, Yvan1  Universidade Federal do Pará, Belém, Brazil1  Rogez, Hervé1  Souza, Jesus N. S.1 
关键词: Inga edulis;    antioxidant activity;    polyphenols;    ORAC assay;   
DOI  :  10.1590/S0103-50532007000600025
学科分类:化学(综合)
来源: SciELO
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【 摘 要 】

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.

【 授权许可】

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