Journal of the Korean Society of Food Culture (한국식생활문화학회지)

Korean Society of Food Culture (한국식생활문화학회)
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Characterization of Volatile Compounds in Low-Temperature and Long-Term Fermented Baechu Kimchi

묵은 배추김치의 휘발성 성분 특성

  • Kim, Ji-Yun (Department of Food Science and Technology, Ewha Womans University) ;
  • Park, Eun-Young (LG Electronics Digital Appliance Company Research Laboratory) ;
  • Kim, Young-Suk (Department of Food Science and Technology, Ewha Womans University)
  • 김지윤 (이화여자대학교 식품공학과) ;
  • 박은영 (LG전자 DAC 연구소) ;
  • 김영석 (이화여자대학교 식품공학과)
  • Published : 2006.06.30
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Abstract

Volatile compounds in low-temperature and long-term fermented Baechu kimchi were extracted by high vacuum sublimation(HVS), and then analyzed by gas chromatography/mass spectrometry(GC-MS). A total of 62 compounds, including 7 sulfur-containing compounds, 8 terpenes, 5 esters, 8 acids, 15 alcohols, 2 nitrites, 2 ketones, 11 aliphatic hydrocarbons and 4 miscellaneous compounds, were found in low-temperature and long-term fermented Baechu kimchi. Among them, acetic acid and butanoic acid were quantitatively dominant. Aroma-active compounds were also determined by gas chromatography/olfactometry(GC-O) using aroma extract dilution analysis(AEDA). A total of 16 aroma-active compounds were detected by GC-O. Butanoic acid was the most potent aroma-active compound with the highest FD factor($Log_3FD$) followed by linalool, acetic acid, 2-vinyl-4H-1,3-dithin and 3-methyl-1-butanol. The major aroma-active compounds, such as acetic acid and butanoic acid, were related to sour and rancid or notes.

묵은 배추김치의 휘발성 성분들을 고진공승화법을 이용하여 분리, 농축하였으며, GC-MS로 분석하였다. 총 62가지의 휘발성 성분들이 검출되었으며, 7개의 sulfur-containing compounds, 8개의 terpenes, 5개의 esters, 8개의 acids, 15개의 alcohols, 2개의 nitriles, 2개의 ketones, 11개의 aliphatic hydrocarbons, 4개의 miscellaneous compounds등으로 구성되어 있었다. 이 중 특히, acids인 acetic acid와 butanoic acid가 높은 함량을 나타내었다. 묵은 배추김치에서 향기활성성분을 규명하기 위해 고진공승화법을 이용하여 휘발성 성분들을 분리 및 농축 후 향 추출물 희석분석법으로 flavor dilution(FD) factor($Log_3FD$)를 구하였으며, GC-MS 및 GC-Olfactometry(GC-O)법으로 휘발성 성분들을 동정하였다. 이 결과 묵은 배추김치에서 총 16종의 화합물이 검출되었다. 이중 시큼한 냄새, 군덕내의 특성을 지닌 acetic acid, butanoic acid가 높은 FD factor를 보였으며, acids외에 높은 (FD > 9)를 나타내는 성분들로는 linalool, 2-vinyl-4H-1,3-dithin 등이 있었다.

Keywords

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