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http://dx.doi.org/10.3746/jkfn.2010.39.11.1695

Antioxidant Compounds and Antioxidant Activities of the Methanolic Extracts from Milling Fractions of Sorghum (Sorghum bicolor L. Moench)  

Woo, Koan-Sik (National Institute of Crop Science, Rural Development Administration)
Seo, Myung-Chul (National Institute of Crop Science, Rural Development Administration)
Kang, Jong-Rae (National Institute of Crop Science, Rural Development Administration)
Ko, Jee-Yeon (National Institute of Crop Science, Rural Development Administration)
Song, Seuk-Bo (National Institute of Crop Science, Rural Development Administration)
Lee, Jae-Saeng (National Institute of Crop Science, Rural Development Administration)
Oh, Byeong-Geun (National Institute of Crop Science, Rural Development Administration)
Park, Gi-Do (National Institute of Crop Science, Rural Development Administration)
Lee, Yong-Hwan (National Institute of Crop Science, Rural Development Administration)
Nam, Min-Hee (National Institute of Crop Science, Rural Development Administration)
Jeong, Heon-Sang (Dept. of Food Science and Technology, Chungbuk National University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.39, no.11, 2010 , pp. 1695-1699 More about this Journal
Abstract
The purpose of this study was to evaluate the antioxidant compounds and their activities of the methanolic extracts from milling fractions of sorghum. To determine the antioxidant compounds in the methanolic extract from the milling fractions, the content of polyphenol, flavonoids, tannin, anthocyanins and proanthocyanidin were measured by spectrophotometric methods. These were evaluated for antioxidative activities by ABTS and DPPH radical scavenging assays. The extraction yield of hull, bran and grain of sorghum were 9.95, 19.05 and 2.94%, respectively. The methanolic extracts from sorghum bran showed generally higher antioxidant activities than the extracts from hull and grain of sorghum. In addition, antioxidant compounds distributed much higher contents in sorghum bran extract than in the extracts from hull and grain of sorghum. A significant correlation was also noted between free radical scavenging activity and polyphenolic compounds. The results of this study show that notable antioxidant activity in sorghum bran is considered to have significant health benefits.
Keywords
sorghum (Sorghum bicolor L. Moench); polyphenolics; proanthocyanidin; antioxidant activity;
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Times Cited By KSCI : 14  (Citation Analysis)
Times Cited By SCOPUS : 2
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