Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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The Enzyme Inhibitory Activity of Ethanol Extracts Derived from Germinated Rough Rice (Oryza sativar L.) Treated by High Pressure

발아와 고압처리에 따른 벼(Oryza sativar L.) 추출물의 효소저해활성

  • Kim, Min Young (Department of Food Science and Technology, Chungbuk National University) ;
  • Lee, Sang Hoon (Department of Food Science and Technology, Chungbuk National University) ;
  • Jang, Gwi Young (Department of Food Science and Technology, Chungbuk National University) ;
  • Park, Hye Jin (Department of Food Science and Technology, Chungbuk National University) ;
  • Li, Meishan (Department of Food Science and Technology, Chungbuk National University) ;
  • Kim, Shinje (Center for Fungi and Plant Genome Research, FnP Corp.) ;
  • Lee, Youn Ri (Department of Food and Nutrition, Daejeon Health Sciences College) ;
  • Lee, Junsoo (Department of Food Science and Technology, Chungbuk National University) ;
  • Jeong, Heon Sang (Department of Food Science and Technology, Chungbuk National University)
  • Received : 2013.09.30
  • Accepted : 2013.11.14
  • Published : 2014.02.28
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Abstract

We evaluated the enzyme inhibitory activity of germinated rough rice (Oryza sativar L.) treated by high pressure (30MPa) for 24 h (HP24) and 48 h (HP48). In rice germinated for 1 day, the ${\alpha}$-glucosidase inhibitory activity reached its highest level, 68.32%, at HP48. The ${\alpha}$-amylase inhibitory activity increased from 32.66-57.00% at HP0, to 43.67-74.82% at HP48. On the other hand, the inhibitory activity of angiotensin-converting enzyme increased from 27.98% to 49.42% over the course of the second day of HP48. The inhibitory activity of xanthine oxidase peaked of 67.51% at HP48 and subsequently decreased. Lipase inhibitory activity increased from 24.04-47.91% at HP0, to 29.62-64.63% at HP48. These results provide useful information for the use of germinated rough rice as a functional food material and demonstrate that high-pressure treatment during the germination process efficiently increase enzyme inhibitory activity.

고압처리가 발아벼 추출물의 성인병관련 예방효과에 미치는 영향을 살펴보기 위하여 발아기간 및 고압처리 시간에 따른 효소저해활성을 살펴보았다. 발아기간은 6일로 하였고, 30 MPa의 압력 하에서 24시간 및 48시간 동안 처리하였다. ${\alpha}$-Glucosidase 저해활성은 발아초기에 대조구에 비해 고압처리 시 높은 범위의 저해활성을 나타내었으며, ${\alpha}$-amylase 저해활성은 발아기간 및 고압처리시간이 증가함에 따라 유의적으로 증가하였다. ACE 및 lipase 저해활성은 ${\alpha}$-glucosidase 저해활성과 유사하였으며, 고압처리가 대조구보다 높은 저해활성을 나타내었으며, 48시간 고압처리한 2일차 발아벼에서 가장 높은 저해활성을 나타내었다. Xanthine oxidase 저해활성은 발아초기에는 대조구보다 고압처리시 높았지만 발아가 진행됨에 따라 감소하였다. 이상의 결과로 부터 발아와 고압처리를 병행한 벼는 무발아 및 발아벼에 비하여 활용가치가 높을 것으로 판단되며, 성인병 예방을 위한 기능성식품소재로써 이용이 가능할 것으로 판단된다.

Keywords

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