%0 Journal Article
%T Antioxidant activity of 50% aqueous - ethanol extract from Acantholippia deserticola
%A MORALES
%A GLAUCO
%A PAREDES
%A ADRI¨¢N
%A SIERRA
%A PATRICIA
%A LOYOLA
%A LUIS A
%J Biological Research
%D 2008
%I Sociedad de Biolog¨ªa de Chile
%R 10.4067/S0716-97602008000200004
%X the antioxidant properties o¨ª acantholippia deserticola, a herb used in traditional northern chilean medicine was studied using free radical - generating systems. the 50% aqueous - ethanol extract o¨ª acantholippia deserticola protected against non-enzymatic lipid peroxidation in microsomal membranes of rat, induced by an fe++ - ascorbate system and measured spectrophotometrically by the tbars test, and had strong free radical scavenging capacities on stable abts and dpph radic¨¢is. the results shows that the ic50 valu¨¦ of the 50% aqueous - ethanolic extract o¨ª a.deserticola is 18 ¡À 0.5 ¦̀g/ml in dpph radical - scavenging, 15 ¡À 0.8 ¦̀g/ml in lipid peroxidation , total antioxidant activity (taa) is 0.95 mm of trolox per mg/ml of extract. the total phenolics content of extract is 725 ¡À 12 mg of gallic acid equivalent per g of dried extract. the results indicate that the 50% aqueous - ethanol extract o¨ª acantholippia deserticola clearly has antioxidant properties.
%K acantholippia deserticola
%K northern chilean medicinal plant
%K phenolics
%K free radic¨¢is scavenging
%K microsomal lipid peroxidation.
%U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0716-97602008000200004&lng=en&nrm=iso&tlng=en