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Evaluation of antioxidant activity of cornelian cherry (Cornus Mas L.)

Author:
Gülçin, İ., Beydemir, Ş., Şat, ?.G., Küfrevioğlu, Ö.İ.
Source:
Acta alimentaria 2005 v.34 no.2 pp. 193-202
ISSN:
0139-3006
Subject:
Cornus mas, antioxidant activity, butylated hydroxyanisole, butylated hydroxytoluene, emulsions, free radical scavengers, gallic acid, hydrogen peroxide, linoleic acid, lipid peroxidation, superoxide anion
Abstract:
In present study, water extract of cornelian cherry (<i>Cornus mas </i>L.) (WECM) was studied for antioxidant properties. The antioxidant properties of WECM were evaluated using different antioxidant tests, including reducing power, free radical scavenging, superoxide anion radical scavenging, hydrogen peroxide scavenging, and metal chelating activities. These properties may be the major reason for the inhibition of lipid peroxidation. The concentration of 20, 40 and 60 µg ml<sup>-1</sup> of WECM showed 75.8, 93.4 and 97.5% inhibition on peroxidation of linoleic acid emulsion, respectively. On the other hand, 60 µg ml<sup>-1</sup> of standard antioxidants such as BHA, BHT and a-tocopherol exhibited 96.5, 99.2 and 61.1% inhibition on peroxidation of linoleic acid emulsion, respectively. In addition, the WECM had effective reducing power, free radical scavenging, superoxide anion radical scavenging, hydrogen peroxide scavenging, and metal chelating activities at the same concentrations (20, 40, and 60 µg ml<sup>-1</sup>). Those various antioxidant activities were compared to reference antioxidants such as butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT) and a -tocopherol. In addition, total phenolic compounds in the WECM were determinedas gallic acid equivalent.
Agid:
4797534