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KMID : 0380620170490010097
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Korean Journal of Food Science and Technology
2017 Volume.49 No. 1 p.97 ~ p.103
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Physicochemical properties and β-glucan contents of Korean naked oat (Avena sativa L.) cultivars
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Lee Mi-Ja
Park Song-Yie
Kim Yang-Kil
Kim Hyung-Soon
Park Hyoung-Ho
Lee Yoon-Jeong
Jeong Heon-Sang
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Abstract
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Due to increased consumption and demand for oat-related foods and processed food, this study examined physicochemical properties, antioxidant activity, and β-glucan contents of 5 Korean naked oat cultivars. Oat seeds had long-grain appearance in all cultivars except for Seonyang. The contents of main components such as protein, starch, and crude fat were significantly different among cultivars. The total β-glucan content was 3.78-4.60% and the soluble β-glucan ratio was 71-83%. Fatty acid composition was C18:1, C18:2, C16:0, C18:0, and C18:3. Unsaturated fatty acid (USFA) content was 75.4-81.2%. 2,2-Diphenyl-1-picrylhydrazil (DPPH) and 2,2'-azino-bis-3-ethyl-benzo-thiaxoline-6-sulfonic acid (ABTS) radical scavenging activity were significantly different for each cultivar. Daeyang had the highest β-glucan, USFA content, and antioxidant activity. Protein content showed a negative correlation with starch content (r = ?0.775). Antioxidant activity was positively correlated with total phenol content (r =0.760). Ash content and flour whiteness showed a positive correlation (r =0.732).
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KEYWORD
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naked oat, β-glucan, physicochemical properties, antioxidant activity
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