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KMID : 0613820110210101393
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Journal of Life Science
2011 Volume.21 No. 10 p.1393 ~ p.1400
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Mineral Content and Antioxidants Activity of Portulaca oleracea
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Kim Mi-Joo
Lee Soo-Jung
Kim Ra-Jeong
Jeong Bo-Young
Sung Nak-Ju
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Abstract
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We investigated the mineral content and antioxidant activity of Portulaca oleracea for biological properties. Total mineral content was 6025.80 mg/100 g, and potassium was the highest at 3846.99 mg/100 g. Water and 80% ethanol extract yields were 14.84% and 24.93%, respectively. The contents of phenolic compounds and flavonoids of ethanol extract were 58.16 mg/g and 20.08 mg/g, and were significantly higher than that of its water extract (49.09 mg/g and 14.98 mg/g, respecitvely). Antioxidant activities and nitrite scavenging activity was significantly elevated in a dose-dependent manner, and that of ethanol extract was higher than that of the water extract. α-Glucosidase inhibition activity of ethanol extract was significantly higher than the water extract as well. We suggest that the biological properties of Portulaca oleracea are due to its mineral and phenolic contents.
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KEYWORD
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Portulaca oleracea, mineral, antioxidant
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