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Metabolome Analysis and Aroma Characteristics of Fermented Fruit Vinegar

발효 과일식초의 대사체 분석 및 향기 특성

  • Choi, Chan-Yeong (Department of Food Science and Biotechnology, Kangwon National University) ;
  • Park, Eun-Hee (Department of Food Science and Biotechnology, Kangwon National University) ;
  • Ryu, Su-Jin (Kooksoondang Brewery Co. Ltd) ;
  • Shin, Woo-Chang (Kooksoondang Brewery Co. Ltd) ;
  • Kim, Myoung-Dong (Department of Food Science and Biotechnology, Kangwon National University)
  • Received : 2018.07.02
  • Accepted : 2018.08.23
  • Published : 2018.12.28

Abstract

Vinegar was prepared from the fruits produced in Gangwon province, and major metabolite and aroma components were investigated for acetic acid fermentation. In the case of Meoru-Bokbunja vinegar, the ${\text\tiny{L}}$-alanine content was greatly changed by acetic acid fermentation. Acetic acid had the highest content (43%) of total aromatic components, and the contents of ester compounds, such as ethyl acetate and isoamyl acetate, were significantly increased after fermentation. Omija-Makgeolli vinegar produced linalool and hexanoic acid by fermentation, and terpenoid compound was prevalent (41.5%). ${\text\tiny{L}}$-alanine was also increased in Omija-Makgeolli vinegar, similar to that of Meoru-Bokbunja vinegar. Terpene compounds, such as terpinel-4-ol and ${\alpha}$-terpineol in Omija-Makgeolli vinegar, and ethyl acetate in Meoru-Bokbunja vinegar, were identified as major components in each aromatic formulation.

강원도에서 생산된 과일을 사용하여 식초를 제조하여, 초산 발효에 의하여 변화되는 주요 대사체 및 향기 성분을 조사하였다. 머루 복분자 식초에서는 초산 발효에 의하여 ${\text\tiny{L}}$-alanine의 함량 변화가 가장 크게 변화하였으며, 초산은 향기 성분 전체 함량 중 43%로 가장 높은 함량을 나타냈고, 초산 발효 후 ethyl acetate, isoamyl acetate 등의 에스테르 화합물의 함량이 증가하였다. 오미자 막걸리 식초의 경우 초산발효에 의하여 linalool, hexanoic acid 등이 생성되었고 테르펜류 화합물이 41.5%로 대부분을 차지하였다. 머루 복분자 식초의 경우와 유사하게 ${\text\tiny{L}}$-alanine의 함량 변화가 가장 큰 것으로 나타났다. 머루 복분자 식초에서는 ethyl acetate, 오미자 막걸리 식초에서는 감귤향을 내는 terpinel-4-ol, 꽃향기를 내는 ${\alpha}$-terpineol 등 테르펜류의 성분들이 각 식초의 향기 특성에 큰 영향을 나타내는 것으로 확인되었다.

Keywords

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