Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
권호 표지

Production of Powder Using Concentrated By-products of Grape Processing

포도박 농축액을 이용한 분말 제조

  • Chang, Seog-Won (Bio-Regional Innovation Center (RIC), Youngdong University) ;
  • Shin, Nam-Sub (Bio-Regional Innovation Center (RIC),Youngdong University) ;
  • Song, Jeong-Hee (Bio-Regional Innovation Center (RIC), Youngdong University) ;
  • Park, Yong-Deok (Department of Medical Life Science, Youngdong University) ;
  • Rho, Yong-Taek (Bio-Regional Innovation Center (RIC), Youngdong University)
  • 장석원 (영동대학교 바이오지역혁신센터) ;
  • 신남섭 (영동대학교 바이오지역혁신센터) ;
  • 송정희 (영동대학교 바이오지역혁신센터) ;
  • 박용덕 (영동대학교 의생명과학과) ;
  • 노용택 (영동대학교 바이오지역혁신센터)
  • Received : 2009.12.28
  • Accepted : 2010.03.26
  • Published : 2010.04.30
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Abstract

By-products from grapes obtained during processing have been considered to be promising materialsfor various functional applications, and to have pharmaceutical properties. A grape powder was developed from a concentrate of by-products obtained during grape processing. As dextrin levels increased, the moisture content, L-, a-, and b- values all decreased, whereas sugar content generally increased. Catechin and resveratrol were detected in most samples, but quercetin was absent. Epicatechin and resveratrol levels either decreased or were not detected as dextrin concentration increased. These physiochemical properties indicate that a concentrate extracted using undiluted ethanol as solvent is optimal for industrial use.

포도주와 포도즙 등 가공품의 생산 후 대량 발생되는 포도 부산물(포도박)의 이용도를 제고하기 위하여 포도박을 조건을 달리하여 추출 농축하여 분말을 제조하여 그 특성을 조사하였다. 물은 용매로 추출한 농축 분말의 경우 가용성 고형물의 함량이나 기능성 성분의 함량이 낮게 나타났으며 카테킨의 경우에서는 에탄올 추출물에서는 검출되지 않은 EGCg를 함유하였다. 에탄올 추출 농축 분말은 가용성 고형물의 함량이 높으며 기능성 성분인 카테킨과 레스베라트롤의 함량이 높게 나타났다. 카테킨은 포도박을 분쇄 후 추출한 경우가 분쇄하지 않았을 때보다 약 1.5배의 함량 증가를 나타냈다. 그러나 레스베라트롤은 분쇄하지 않고 추출한 시료가 더 높게 나타났다. 건본 연구의 결과 포도박 추출 분말은 에탄올로 추출하고 추출 전 분쇄한 것은 카테킨의 함량이 높고 분쇄하지 않은 것은 레스베라트롤의 함량이 높았으며 5% 덱스트린을 첨가하여 건조 한 것이 기능성 성분을 가장 많이 포함하였다.

Keywords

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