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http://dx.doi.org/10.3746/jkfn.2010.39.4.624

Antioxidant Compounds and Antioxidant Activities of Ethanol Extracts from Milling By-products of Rice Cultivars  

Oh, Sea-Kwan (National Institute of Crop Science, Rural Development Administration)
Kim, Dae-Jung (National Institute of Crop Science, Rural Development Administration)
Chun, A-Reum (National Institute of Crop Science, Rural Development Administration)
Yoon, Mi-Ra (National Institute of Crop Science, Rural Development Administration)
Kim, Kee-Jong (National Institute of Crop Science, Rural Development Administration)
Lee, Jun-Soo (Dept. of Food Science and Technology, Chungbuk National University)
Hong, Ha-Cheol (National Institute of Crop Science, Rural Development Administration)
Kim, Yeon-Kyu (National Institute of Crop Science, Rural Development Administration)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.39, no.4, 2010 , pp. 624-630 More about this Journal
Abstract
This study was conducted to determine antioxidant compounds and antioxidative activities of by-products including rice bran and half-crashed rice by rice milling. DPPH, ABTS radical scavenging activities and reducing power have been used to investigate the relative antioxidative activities of 70% EtOH extracts from by-products. The contents of total polyphenol, total flavonoid and $\gamma$-oryzanol in EtOH extracts were measured by spectrophotometric methods, and vitamin E was carried out by HPLC. Ethanol extract from rice bran showed markedly antioxidative activity than that from half-crushed rice. Among EtOH extracts from milling by-products, rice bran of 'Hongjiju' tended to have the most effective antioxidative activity compared to the others. These results suggested that by-products of rice milling have the potent antioxidative activity and these activity are partly due to the antioxidative compounds present in by-products including rice bran and half-crushed rice.
Keywords
by-product; antioxidant compound; antioxidant activity; rice bran; half-crushed rice;
Citations & Related Records
Times Cited By KSCI : 14  (Citation Analysis)
Times Cited By SCOPUS : 2
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