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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Effects of Acidic Treatments for Anthocyanin and Proanthocyanidin Extraction on Black Bean (Glycine max Merrill.)

검정콩 안토시아닌 및 프로안토시아니딘 추출에 대한 산 처리의 영향

  • Ji, Yeong Mi (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Kim, Min Young (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Lee, Sang Hoon (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Jang, Gwi Yeong (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Li, Meishan (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Yoon, Nara (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Kim, Kyung Mi (Department of Agrofood Resources, National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Junsoo (Department of Food Science and Biotechnology, Chungbuk National University) ;
  • Jeong, Heon Sang (Department of Food Science and Biotechnology, Chungbuk National University)
  • 지영미 (충북대학교 식품생명공학과) ;
  • 김민영 (충북대학교 식품생명공학과) ;
  • 이상훈 (충북대학교 식품생명공학과) ;
  • 장귀영 (충북대학교 식품생명공학과) ;
  • ;
  • 윤나라 (충북대학교 식품생명공학과) ;
  • 김경미 (농촌진흥청 국립농업과학원) ;
  • 이준수 (충북대학교 식품생명공학과) ;
  • 정헌상 (충북대학교 식품생명공학과)
  • Received : 2015.07.30
  • Accepted : 2015.09.18
  • Published : 2015.10.31
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Abstract

This study was performed to investigate the effects of various acidic treatment for anthocyanin and proanthocyanidin extraction from black bean. Extracts were prepared with 80% methanol solutions containing HCl, acetic, formic, phosphoric, and citric acids of different concentrations (0.1, 0.2, 0.3, 0.5, and 0.7%). Total anthocyanin content ranged from 0.74 mg/g in 0.7% citric acid to 1.74 mg/g in 0.3% HCl, depending on acid type and concentration. The major anthocyanins were delphinidin-3-glucoside (D3G), cyanidin-3-glucoside (C3G), and petunidin-3-glucoside (Pt3G). The highest C3G content was 1.12 mg/g in 0.3% HCl. Proanthocyanidin content ranged from 2.01 mg/g in 0.5% acetic acid to 5.29 mg/g in 0.3% HCl. Thus, acidic condition is a significant factor affecting anthocyanin and proanthocyanidin extraction from black bean, and the optimum extraction conditions were determined as 80% methanol containing 0.3% HCl.

본 연구에서는 추출용매에 첨가하는 산의 종류 및 농도를 달리하여 검정콩으로부터 안토시아닌 및 프로안토시아니딘 색소의 추출효율에 대하여 연구하였다. 산의 종류는 hydrogen chloride(HCl), acetic acid, formic acid, phosphoric acid 및 citric acid였으며, 사용된 농도는 0.1, 0.2, 0.3, 0.5 및 0.7%였고 80% 메탄올을 추출용매로 사용하였다. 총 안토시아닌 함량은 산의 종류 및 농도에 따라 0.74~1.74 mg/g 범위였으며 0.3% HCl 처리구가 가장 높았다. 검정콩의 주요 안토시아닌은 C3G, D3G 및 Pt3G였으며 구성 안토시아닌 중 C3G의 비율이 가장 높았다. 프로안토시아니딘 함량은 2.01~5.29 mg/g 범위로 포도씨나 팥의 프로안토시아닌보다 더 많은 양이 함유되어 있었다. 본 연구 결과로부터 검정콩의 안토시아닌과 프로안토시아니딘의 추출시 산의 종류 및 농도가 중요한 변수이며, 최적 추출조건은 0.3% HCl을 포함하는 80% 메탄올이라 판단된다.

Keywords

References

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