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http://dx.doi.org/10.3746/jkfn.2008.37.5.605

Antioxidant Activity of Wa-song (Orostachys japonicus A. Berger) According to Drying Methods  

Lee, Soo-Jung (Dept. of Food Science and Nutrition, Institute of Agriculture and Life Sciences, Gyeongsang National University)
Seo, Jong-Kwon (Division of Food Science, International University of Korea)
Shin, Jung-Hye (Dept. of Hotel Culinary Arts & Bakery, Namhae College)
Lee, Hyun-Ji (Dept. of Food Science and Nutrition, Institute of Agriculture and Life Sciences, Gyeongsang National University)
Sung, Nak-Ju (Dept. of Food Science and Nutrition, Institute of Agriculture and Life Sciences, Gyeongsang National University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.37, no.5, 2008 , pp. 605-611 More about this Journal
Abstract
Antioxidant activity of wa-song (Orostachys japonicus A. Berger) was analyzed to clarify the influence of extractive solvent and drying method such as sun, hot-air and freeze drying. The contents of total phenols and flavonoids were significantly higher in 95% ethanol extracts than water extracts. Ability of reducing power and DPPH radical, hydroxyl radical and nitrite scavenging ability were higher in the order of hot-air dried sample> freeze dried sample> sun dried sample and these abilities were also higher in 95% ethanol extracts than water extracts. In conclusion, antioxidant activities of wa-song extracts were in proportion to the contents of total phenols and flavonoids. Also, hot-air drying is the superior method for the enhancement of antioxidant activity of wa-song.
Keywords
wa-song; antioxidant activity; hot-air drying;
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Times Cited By KSCI : 13  (Citation Analysis)
Times Cited By SCOPUS : 4
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