Journal
FOOD CHEMISTRY
Volume 101, Issue 3, Pages 912-917Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2006.02.038
Keywords
Vaccinium myrtillus; cytoprotectivity; radical scavenging
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The effect of a bilberry extract (BE, 25% anthocyanins) against oxidative damage in primary cultures. of rat hepatocytes, induced by tert-butyl hydroperoxide and allyl alcohol, was investigated. BE displayed cytoprotective effects at 100 and 500 mu g/ml in the MTT viability test. It protected the cells against lactate dehydrogenase leakage and lipoperoxidation products formation. Maximum protection (58%) was noted using 500 mu g/ml of BE and intoxication by allyl alcohol. The observed cytoprotective effect is probably due to the antioxidant properties of its constituents, mainly anthocyanins. BE scavenged DPPH (IC50 3.99 +/- 0.14 mu g/ml) and enzymatically generated superoxide radical with an activity equivalent to 108 +/- 7.2 U of superoxide dismutase per mg of extract. Our results support the use of bilberry and bilberry extracts in functional foods and food supplements designed for the prevention of chronic diseases associated with oxidative stress. (c) 2006 Elsevier Ltd. All rights reserved.
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