Identification and antioxidant activity of several flavonoids of Inga edulis leaves

Journal of the Brazilian Chemical Society

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

【 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】

Unknown