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KMID : 0613820120220030354
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Journal of Life Science
2012 Volume.22 No. 3 p.354 ~ p.359
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Antioxidant Effects of Picrasma quassioides and Chamaecyparis obtusa (S. et Z.) ENDL Extracts
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Jung Young-Tae
Lee In-Seon
Whang Key
Yu Mi-Hee
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Abstract
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In our study, we investigated the antioxidant effect of methanol extract from the leaves of Picrasma quassioides (PQ) and Chamaecyparis obtuse (S. et Z.) ENDL (CO). Total polyphenol contents of methanol extracts from PQ and CO varied from 138.3 to 367.52μg/mg and total flavonoid contents varied from 8.12 to 46.41μg/mg. Contents of polyphenol and flavonoid in PQ were found to be extremely high. In addition, the methanol extract of PQ had a higher antioxidant activity in both DPPH (4.79μg/ml) and ABTS (7.21μg/ml) compared to other plants (CO). Based on the results of the FRAP assay, PQ showed a value of 8.52μmol/μg and CO exhibited a value of 1.77μmol/μg. The methanol extracts from the leaves of PQ showed the highest radical-scavenging activity in various antioxidant systems.
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KEYWORD
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Antioxidant, Picrasma quassioides, Chamaecyparis obtuse (S.et Z.) ENDL
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