Atividade antioxidante da epicatequina-(2β→7,4β→8)-epicatequina isolada de Dioclea lasiophylla

David, Juceni P.; Santos, Edlene O. dos; Miranda, Maria S.; Barreiros, André L. B. S.; Santos, Ihanmarck D. dos; David, Jorge M.

doi:10.1590/S0102-695X2002000300003

Resumo

This work describes the evaluation of the antioxidant activity in the system b-carotene / linoleic acid and radical scavenging effects of the substances epicatechin-(2β→7,4β→8)-epicatechin, epicatechin, epigalocatechin-(2β→7,4β→8)-epicatechin, luteolin 3-β-Dglicopiranoside and crisoeriol 7-β-D-glicopiranoside isolated of the extract AcOEt of the stem of Dioclea lasiophylla, in comparison with the standards n-propyl gallate, BHT and a-tocopherol.

Atividade antioxidante da epicatequina-(2β→7,4β→8)-epicatequina isolada de Dioclea lasiophylla

Juceni P. David^I; Edlene O. dos Santos^I; Maria S. Miranda^I; André L. B. S. Barreiros^II; Ihanmarck D. dos Santos^II; Jorge M. David^II

^IFaculdade de Farmácia; Universidade Federal da Bahia, 40170-290, Salvador, BA, Brasil. juceni@ufba.br

^IIInstituto de Química; Universidade Federal da Bahia, 40170-290, Salvador, BA, Brasil

ABSTRACT

This work describes the evaluation of the antioxidant activity in the system b-carotene / linoleic acid and radical scavenging effects of the substances epicatechin-(2β→7,4β→8)-epicatechin, epicatechin, epigalocatechin-(2β→7,4β→8)-epicatechin, luteolin 3-β-Dglicopiranoside and crisoeriol 7-β-D-glicopiranoside isolated of the extract AcOEt of the stem of Dioclea lasiophylla, in comparison with the standards n-propyl gallate, BHT and a-tocopherol.

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Agradecimentos

Juceni P. David e Jorge M. David são gratos ao CNPq pelo suporte financeiro e bolsas. André L. B. S. Barreiros, Ihanmarck D. dos Santos e Edlene de O. Santos são gratos ao CNPq, CAPES e PIBIC/CNPq/UFBA pelas bolsas de doutorado e Iniciação Científica, respectivamente.

1 Correa M P.(1984) Dicionário das Plantas Úteis do Brasil e das Exóticas Cultivadas v. II, pp. 59-93, v. III, pp.160-245 e v. V, pp. 410-472. Imprensa Nacional, Rio de Janeiro, RJ
2 Bhattacharya J, Majetich G, Jenkins T M, Almida R N. (1998) Journal of Natural Products 61, 413-414
3 Ho, C-T.; Ferraro, T; Chen, Q.; Rosen, R.T. e Huang, M-T. Phytochemicals in Teas and Rosemary and their Cancer-Preventive Properties. in: Food Phytochemicals for Cancer Prevention II C-T. Ho; T. Osawa, M-T. Huang e R.T. Hosen (Ed.). American Chemical Society, Washington Dc 1994, p. 2
4 Barreiros, A.L.B.S, David, J.P., Queiroz, L.P., David, J.M. (2000) Phytochemistry, 55, 805-808
5 Hidalgo, M. E., Fernández, E., Quilhot, W., Lissi, E. (1994) Phytochemistry, 37, 1585-1587
6 Malterud, K. E., Farbrot, T. L., Huse, A. E., Sund, R. B. (1993) Pharmacology, 47, 77-85

Datas de Publicação

Publicação nesta coleção
05 Out 2009
Data do Fascículo
2002

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

[1] 1 Correa M P.(1984) Dicionário das Plantas Úteis do Brasil e das Exóticas Cultivadas v. II, pp. 59-93, v. III, pp.160-245 e v. V, pp. 410-472. Imprensa Nacional, Rio de Janeiro, RJ

[2] 2 Bhattacharya J, Majetich G, Jenkins T M, Almida R N. (1998) Journal of Natural Products 61, 413-414

[3] 3 Ho, C-T.; Ferraro, T; Chen, Q.; Rosen, R.T. e Huang, M-T. Phytochemicals in Teas and Rosemary and their Cancer-Preventive Properties. in: Food Phytochemicals for Cancer Prevention II C-T. Ho; T. Osawa, M-T. Huang e R.T. Hosen (Ed.). American Chemical Society, Washington Dc 1994, p. 2

[4] 4 Barreiros, A.L.B.S, David, J.P., Queiroz, L.P., David, J.M. (2000) Phytochemistry, 55, 805-808

[5] 5 Hidalgo, M. E., Fernández, E., Quilhot, W., Lissi, E. (1994) Phytochemistry, 37, 1585-1587

[6] 6 Malterud, K. E., Farbrot, T. L., Huse, A. E., Sund, R. B. (1993) Pharmacology, 47, 77-85