Journal
PHYTOTHERAPY RESEARCH
Volume 20, Issue 7, Pages 576-580Publisher
WILEY-BLACKWELL
DOI: 10.1002/ptr.1910
Keywords
antioxidants; polyphenols; wild plants; folk medicine
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A selection of wild plants collected in Valsesia (Northwest Italy) was screened for their in vitro antioxidant activity. Aerial parts of selected plants were dried at room temperature and powdered. Then, four sequential extractions were performed with increasing polarity solvents, i.e. n-hexane, chloroform, chloroform-methanol (9:1, v/v) and methanol. By employing different assays, it was shown that all the methanol extracts of the samples collected were endowed with antioxidant activity, though, as expected, their potency varied according to the different tests. In particular, plants of the Thymus and Achillea genus displayed the highest activity. Given that a diet rich in wild plants is associated with a reduced incidence of degenerative diseases, such as atherosclerosis and cancer, this study suggests that some Valsesia plants could be pharmaceutically exploited. Copyright (c) 2006 John Wiley & Sons, Ltd.
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