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Physicochemical Characteristics of Vinegars Fermented from Cereal Crops with Incalgyun

인칼균 첨가에 따른 잡곡식초의 이화학적 특성

  • Woo, Koan-Sik (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Ko, Jee-Yeon (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Song, Seuk-Bo (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Jae-Saeng (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Kang, Jong-Rae (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Oh, Byeong-Geun (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Nam, Min-Hee (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Jeong, Jae-Hwan (Korea Advanced Incalgyun Institute) ;
  • Jeong, Heon-Sang (Dept. of Food Science and Technology, Chungbuk National University) ;
  • Seo, Myung-Chul (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
  • 우관식 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 고지연 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 송석보 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 이재생 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 강종래 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 오병근 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 남민희 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 정재환 (한국인칼균연구소(주)) ;
  • 정헌상 (충북대학교 식품공학과) ;
  • 서명철 (농촌진흥청 국립식량과학원 기능성작물부)
  • Received : 2010.05.06
  • Accepted : 2010.07.05
  • Published : 2010.08.31

Abstract

This study was carried out to compare the physicochemical characteristics of vinegars fermented from cereal crops with Incalgyun. The crude protein, mineral and $P_2O_5$ contents of vinegars fermented from cereal crops with Incalgyun were higher than the circulated brown rice vinegar (CBRV). Brix degree, turbidity and pH of vinegar fermented from cereal crops with Incalgyun were higher, and total acidity was lower than the CBRV. The glucose content of the CBRV was 4.89 mg/mL, and vinegars fermented from glutinous foxtail millet without and with Incalgyun were 5.62 and 5.58 mg/mL. The major organic acids were acetic acid and succinic acid. The total organic acid content of the CBRV was 41.92 mg/mL, and vinegars fermented from cereal crops without and with Incalgyun were 12.14~42.31 and 13.07~41.80 mg/mL. Total amino acid content of the CBRV was $63.75\;{\mu}g/mL$, and vinegars fermented from cereal crops without and with Incalgyun were 1,125.24~1,976.37 and $1,045.36{\sim}2,057.34\;{\mu}g/mL$. The total polyphenol content of CBRV was 2.31 mg/100 mL, and vinegars fermented from cereal crops without and with Incalgyun were 28.59~41.26 and 26.57~39.62 mg/100 mL. The ABTS and DPPH radical scavenging activities of the CBRV were 1.45 and 2.85 mg TEAC/100 mL. The highest ABTS and DPPH radical scavenging activities were 37.10 and 20.26 mg TEAC/100 mL at the vinegars fermented from nonglutinous foxtail millet and glutinous foxtail millet with Incalgyun, respectively.

인칼균과 다양한 기능성을 가진 조, 기장, 수수, 율무 등의 잡곡을 이용해 식초를 제조하여 이화학적 특성을 검토한 결과 인칼균 첨가 유무에 따라 조단백질 함량은 유의적인 차이를 보이지 않았으나, 무기성분 및 인산 함량은 유의적인 차이를 보였다. 특히 칼슘과 인산의 함량이 크게 증가하는 것으로 나타났으며, 칼슘은 메조(2,278.85 ppm)에서, 인산은 수수(1,617.28 mg/100 g)에서 가장 높은 함량을 보여 칼슘과 인산의 공급원으로 사용할 수 있을 것으로 보인다. 당도와 탁도는 시중유통 현미식초($5.33^{\circ}Bx$ 및 0.078)보다 잡곡식초에서 높은 경향을 보였고 인칼균 첨가에 따라 증가하는 경향을 보였다. pH는 인칼균 첨가에 따라 약간 높아지는 경향을 보였으며, 총 산도는 낮아지는 경향을 보였다. 시중유통 현미식초 및 인칼균 첨가 유무에 따른 색차를 구한 결과 유의적으로 차이를 보이는 것으로 나타났다. 시중유통 현미식초의 glucose 함량은 4.89 mg/mL로 나타났으며, 잡곡식초의 경우 차조에서 5.62 mg/mL, 인칼균 첨가 식초에서 5.58 mg/mL로 가장 높게 나타났다. 잡곡식초의 주된 유기산은 acetic acid 및 succinic acid로 나타났으며, 총 유기산 함량은 인칼균 첨가에 따라 대체적으로 약간 증가하였으나 유의적인 차이를 보이지 않았다. 총 아미노산 함량은 시중유통 현미식초가 $63.75\;{\mu}g/mL$, 잡곡식초와 인칼균 첨가 식초의 경우 각각 1,125.24~1,976.37 및 $1,045.36~2,057.34\;{\mu}g/mL$로 나타났다. 총 폴리페놀 함량은 잡곡식초는 28.59~41.26 mg/100 mL, 인칼균 첨가 식초는 26.57~39.62 mg/100 mL를 보였다. ABTS 및 DPPH radical 소거활성은 전체적으로 인칼균을 첨가한 식초가 무처리 잡곡식초보다 높은 활성을 보였으며, 특히 차조와 메조를 이용한 식초가 크게 증가하였다.

Keywords

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