Antioxidant effects of xanthones isolated from Leiothrix species (Eriocaulaceae)

Revista Brasileira de Farmacognosia

Piacente, S.¹  Vilegas, W.¹  Santos, L.C.¹  Pizza, C.¹  Montoro, P.¹  Universidade de Estudos de Salerno, Fisciano, Itália¹  Universidade Estadual Paulista Araraquara¹ 

关键词: Antioxidant;    TEAC;    Linoleic acid;    Eriocaulaceae;    Leiothrix spp.;    Xanthones.;   

DOI  :  10.1590/S0102-695X2003000200002

来源: Sociedade Brasileira de Farmacognosia

【 摘 要 】

Leiothrix (Eriocaulaceae) is an exclusively South American genus of which 37 species are restricted to Brazil. Leiothrix flavescens (Bong.) Ruhland and Leiothrix curvifolia (Bong.) Ruhland, are species endemic to areas of Minas Gerais and Bahia States. Chemical and biological investigations of this genus are scarse. The objective of this work was to investigate the antioxidant effect using TEAC and linoleic acid assays of the xanthones isolated from the ethanolic extract of these species. These substances showed a moderate antioxidant activity when compared to quercetin and to BHT.

【 授权许可】

Unknown