Buglossoides purpureocaerulea is a little-known plant used in the folk tradition for the preparation of a decoction in Sud, Italy, where it is appreciated for its beneficial effects on liver diseases. These properties may be due to the presence of antioxidant compounds. This study presents the phenolic characterisation and the antioxidant activity (AA) of B. purpureocaerulea extracts obtained by decoction, ethanol infusion and ethanol and methanol macerations. Total phenols ranged between 69 and 100mgg(1)dry weight (DW). The main compounds were: rosmarinic acid, caffeic acid, lithospermic acid and salvianolic acid C. The extracts showed a good AA, particularly high for the decoction (142283 mu molTEg(1) DW; TE, Trolox equivalent) and ethanol maceration extract (214364 mu molTEg(1) DW) when determined by DPPH and ferric reducing antioxidant power test, respectively.
Antioxidant activity of Bluglossoides purpureocaerula (L.) I. M. Johnst.
NEGRO, Carmine;DE BELLIS, Luigi;MICELI, Antonio
2013-01-01
Abstract
Buglossoides purpureocaerulea is a little-known plant used in the folk tradition for the preparation of a decoction in Sud, Italy, where it is appreciated for its beneficial effects on liver diseases. These properties may be due to the presence of antioxidant compounds. This study presents the phenolic characterisation and the antioxidant activity (AA) of B. purpureocaerulea extracts obtained by decoction, ethanol infusion and ethanol and methanol macerations. Total phenols ranged between 69 and 100mgg(1)dry weight (DW). The main compounds were: rosmarinic acid, caffeic acid, lithospermic acid and salvianolic acid C. The extracts showed a good AA, particularly high for the decoction (142283 mu molTEg(1) DW; TE, Trolox equivalent) and ethanol maceration extract (214364 mu molTEg(1) DW) when determined by DPPH and ferric reducing antioxidant power test, respectively.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
