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KMID : 0665220180310040449
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Korean Journal of Food and Nutrition
2018 Volume.31 No. 4 p.449 ~ p.456
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Physicochemical Characteristics and Antioxidant Activity of Two Varieties of Foxtail Millet (Setaria italica Beauv.) during Different Seeding Periods
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Jung Gun-Ho
Kim Sung-Kook
Lee Jae-Eun
Woo Koan-Sik
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Abstract
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The physicochemical characteristics and antioxidant activity of several varieties of foxtail millet were evaluated across different seeding periods. Results indicated the moisture, crude ash, fat, protein, and carbohydrate levels of the foxtail millet differed significantly according to the variety and seeding periods. The crude protein contents were highest when harvested during the early-season seeding periods; However, carbohydrate contents were highest when harvested during the late-season seeding periods. The lightness and yellowness of the Hwanggeumjo variety increased significantly as the seeding periods were delayed though the color of the Samdame variety decreased. The swelling power of foxtail millet increased as the seeding periods were delayed. Total polyphenol contents of the Hwanggeumjo and Samdame varieties were 298.68~315.13 and 288.84~297.73 mg GAE/100 g, and flavonoid contents were 181.32~172.92 and 172.49~183.86 mg CE/100 g, respectively. DPPH radical scavenging activity was 104.70~126.89 and 111.75~136.92 mg TE/100 g, and ABTS radical scavenging activity was 88.69~114.64 and 69.80~100.09 mg TE/100 g, respectively. Total polyphenol contents and the radical scavenging activity of Hwanggeumjo were highest when harvested during the seeding periods of the early-season, and Samdame was highest when harvested during the seeding periods of the late-season.
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KEYWORD
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foxtail millet,Setaria italica Beauv, variety,seeding period,physicochemical characteristics, antioxidant activity
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