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KMID : 1134820170460101171
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Journal of the Korean Society of Food Science and Nutrition
2017 Volume.46 No. 10 p.1171 ~ p.1177
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Functional Components of Barley Bran with Different Particle Sizes and Cultivars
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Baek So-Yune
Lee Yoon-Jeong
Jang Gwi-Yeong
Kim Min-Young
Oh Nam-Seok
Lee Mi-Ja
Kim Hyun-Young
Lee Jun-Soo
Jeong Heon-Sang
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Abstract
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This study evaluated the functional components of barley bran with different particle sizes and cultivars (Dahan, Hinchalssalbori, Heukgwang, Huknuri, and Boseokchal). Barley bran divided into fractions Ⅰ (<60 mesh), Ⅱ (60∼100 mesh), and Ⅲ (>100 mesh) was collected as pearling by-products produced by an industrial process consisting of consecutive barley pearlers. Total β-glucan contents of all cultivars were especially highest in fraction Ⅱ. Total arabinoxylan was the highest in barley bran from Boseokchal in fraction Ⅱ. Total polyphenol contents were the highest in bran from Boseokchal and Hinchalssal in fraction Ⅱ, and contents ranged of 5.61∼7.00 and 4.24∼6.58, respectively. Total flavonoid contents of all cultivars were especially highest in fraction Ⅱ. 2,2’-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activities ranged from 2.78∼7.53 mg L-ascorbic acid (AA) eq/g and 2.24∼4.83 mg AA eq/g, respectively. ABTS and DPPH radical scavenging activities were the highest in barley bran from Dahan in fraction Ⅱ. In this study, fraction Ⅱ showed enriched functional components and has the best particle size range for enriched antioxidant activities. These results provide useful data for selection of appropriate cultivars and particle size of bran to achieve high quality barley processing.
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KEYWORD
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barley bran, cultivars, particle size, functional components
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