Polyphenols assessment and antioxidant capacity of six species of the Atlantic Forest

Authors

  • Sabrina De Moraes Clemes Universidade Regional de Blumenau.
  • Alessandra Beirith Universidade Regional de Blumenau.
  • Ana Lúcia Bertarello Zeni Universidade Regional de Blumenau, Departamento de Ciências Naturais

Keywords:

Atlantic Forest. Medicinal plants. Phytochemistry.

Abstract

Medicinal plants are important sources of antioxidants and in its activity have been implicated compounds such as polyphenols. This study aimed to quantify total polyphenols and measure antioxidant capacity of six different species used in folk medicine:  Leandra sp, Elephantopus mollis Kunth, Alternanthera dentata Moench, Sambucus australis Cham. & Schltdl., Tillandsia usneoides L. and Psidium guajava L. Polyphenolic compounds  and antioxidant capacity of the aqueous and ethanolic extracts were analyzed by Folin-Ciocalteu and by 1,1-diphenyl-2-picrylhydrazyl (DPPH) methods, respectively. The concentration of polyphenols found in the aqueous extracts were from 0.26 to 12.84 mg/g and in the ethanolic extracts were from 10.56 to 17.03 mg/g. The levels of antioxidant capacity obtained in aqueous extracts were from 17.8 to 89.4% and among the ethanolic extracts were from 79.05 to 87.1%. The correlation between antioxidant capacity and polyphenols content of aqueous and ethanolic extracts tested were R2 = 0.26 and R2 = 0.74, respectively. All species studied here showed a high antioxidant potential, especially in the ethanolic extracts.

Author Biographies

Sabrina De Moraes Clemes, Universidade Regional de Blumenau.

Acadêmica do Curso de Ciências Biológicas e bolsita de iniciação científica.

Alessandra Beirith, Universidade Regional de Blumenau.

Professora de Fisiologia  do Departamento de Ciências Naturais.

Ana Lúcia Bertarello Zeni, Universidade Regional de Blumenau, Departamento de Ciências Naturais

Professora de Bioquímica do Departamento de Ciências Naturais. Coordeno grupo de pesquisa interessado em aspectos químicos e biológicos sobre plantas medicinais.

Published

2015-05-09

How to Cite

Clemes, S. D. M., Beirith, A., & Zeni, A. L. B. (2015). Polyphenols assessment and antioxidant capacity of six species of the Atlantic Forest. Scientia Plena, 11(5). Retrieved from https://scientiaplena.emnuvens.com.br/sp/article/view/2279