Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Functional Components of Barley Bran with Different Particle Sizes and Cultivars

품종 및 입도별 보리 맥강의 기능성분 함량

  • Baek, So Yune (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Lee, Yoon Jeong (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Jang, Gwi Young (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Kim, Min Young (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Oh, Nam Seok (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Lee, Mi Ja (Department of Crop Foundation Division, National Institute of Crop Science) ;
  • Kim, Hyun Young (Department of Crop Foundation Division, National Institute of Crop Science) ;
  • Lee, Jun Soo (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Jeong, Heon Sang (Department of Food Science and Biotechnology, Chungbuk National University)
  • 백소윤 (충북대학교 식품생명공학과) ;
  • 이윤정 (충북대학교 식품생명공학과) ;
  • 장귀영 (충북대학교 식품생명공학과) ;
  • 김민영 (충북대학교 식품생명공학과) ;
  • 오남석 (충북대학교 식품생명공학과) ;
  • 이미자 (국립식량과학원 작물기초기반과) ;
  • 김현영 (국립식량과학원 작물기초기반과) ;
  • 이준수 (충북대학교 식품생명공학과) ;
  • 정헌상 (충북대학교 식품생명공학과)
  • Received : 2017.07.25
  • Accepted : 2017.09.05
  • Published : 2017.10.31
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Abstract

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 ${\beta}-glucan$ 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.

보리 도정 시 발생되는 부산물(맥강)의 이용방안을 모색하기 위하여 5가지 품종의 쌀보리 보석찰(유색 찰성), 흰찰쌀(찰성), 다한(메성), 흑광(유색), 흑누리(유색)를 23%로 도정한 다음 입도별(<60 mesh(fraction I), 60~100 mesh(fraction II), >100 mesh(fraction III)로 분획 후, 기능성분 함량에 대해 분석하였다. 베타글루칸의 함량은 모든 품종에서 fraction II에서 가장 높게 나타났으며, 다한과 흑누리에서 높은 함량을 나타내었다. 아라비노자일란은 fraction III에서 가장 낮은 함량을 보여 입도가 큰 분획물을 이용하는 것이 아라비노자일란 고함유 분획물을 얻을 수 있었다. 총 폴리페놀 및 플라보노이드는 모든 품종에서 fraction II에서 가장 높은 함량을 나타내었으며, 항산화력과 라디칼 소거능 역시 fraction II에서 가장 좋은 활성을 나타내어 비슷한 경향을 나타내었다. 분석한 모든 기능성분의 함량이 높았던 fraction II는 보리의 겨층 부분과 배유층 부분이 적절히 혼입된 분획물로 판단되기 때문에 맥강의 기능성 식품 소재화를 위한 맥강을 선정할 때 fraction II를 활용하는 것이 좋을 것으로 판단되었다. 이러한 결과는 보리 도정 부산물의 효율적인 이용을 위하여 품종 및 입도별 분류를 통해 유용성분이 고함유되어 있는 층을 얻고, 이를 활용한 식품 기능소재로서의 가능성을 확인하였다.

Keywords

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