Antioxidant action of teas and seasonings more consumed in Brazil

Revista Brasileira de Farmacognosia

Universidade Estadual do Ceará, Fortaleza, Brasil¹  Aguiar, Liza A.¹  Morais, Selene M. de¹  Costa, Sônia Maria O.¹  Cavalcanti, Eveline S. B.¹ 

关键词: Antioxidant action;    teas;    seasonings.;   

DOI  :  10.1590/S0102-695X2009000200023

来源: Sociedade Brasileira de Farmacognosia

【 摘 要 】

Antioxidants are compounds that remove free-radicals or minimize their availability to generate oxidative stress. Teas are popular beverages providing a significant source of phenolic compounds, important components of the human diet due to their antioxidant properties. The present work had the objective of evaluate the antioxidant action of teas and seasonings more consumed in Brazil. The analysed teas were from the plants: Pneumus boldus Mold., Matricaria recutita L., Cymbopogon citratus (DC) Stapf, Baccharis trimera (Less.) DC, Camelia sinensis (L) O. Kuntze (fermented), Camelia sinensis (not-fermented), Lippia alba N.E. Brown, Mentha arvensis L. and Pyrus malus L. The studied seasonings were: Eugenia aromatica Baill, Cinnamonum zeylanicum Blume, Laurus nobilis L. and Origanum vulgare L. The antioxidant activity was measured by the DPPH free radical scavenging method. All analysed samples demonstrated antioxidant activities. Camelia sinensis (not-fermented) (IC50= 0.14 mg/mL), was the most active and active principles are epicalocatechins. The stronger antioxidant seasonings were Cinnamonum zeylanicum (IC50 = 0.37 mg/mL), Eugenia aromatica Baill (IC50= 0.46 mg/ mL and Laurus nobilis (IC50 = 0.76 mg/mL), which presented as main antioxidant component eugenol.

【 授权许可】

Unknown