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미더덕의 향기 성분

Flavor Components of Mideoduck (Styela clava)

  • Choi, Byeong-Dae (Department of Seafood Science and Technology/Institute of Marine Industry, Gyeongsang National University) ;
  • Oh, Bong-Se (National Fisheries Research & Development Institute) ;
  • Kang, Seok-Joong (Department of Marine Life Science/Institute of Marine Industry, Gyeongsang National University)
  • 투고 : 2010.08.16
  • 심사 : 2010.10.27
  • 발행 : 2010.11.30

초록

미더덕 육과 체액을 이용한 천연 조미료의 제조를 위하여 본래의 향과 가열에 따른 변화를 비교해보기 위하여 SDE법과 SPME법으로 미더덕 향기성분을 분석하였다. SDE 추출법으로 얻어진 미더덕 육에 함유된 주요 성분으로서는 hexanal $371.3\;{\mu}g/g$, 1-tridecanol $80.1\;{\mu}g/g$, (Z)-4,5-dimethyhex02-en-4-ol $72.1\;{\mu}g/g$ 등이 있었고, 그 외 다량의 alcohol, aldehydes 및 acids가 얻어졌다. SDE 추출법으로 얻어진 alcohol은 농도도 높았지만 미더덕 육향기성분의 주체가 되는 것으로 나타났다. SPME 추출법으로 얻어진 미더덕 육에는 9종의 alcohols, 1종의 acid, 1종의 aldehyde, 1종의 hydrocarbon, 1종의 ester, 1종의 amine 및 2종의 ketones이 포함되어 있었다. 이들 중 함량이 가장 높았으며 그 중 1-nonanol, 1-decanol 및 1-tridecanol이 주성분이었다. SPME법으로 얻어진 향기성분 중 1-nonanol $31.6\;{\mu}g/g$, (E)-2-butanoic acid dibutylester $20.3\;{\mu}g/g$ 및 heptadecanoic acid $26.7\;{\mu}g/g$으로 전체 향기성분 추출물의 62.1%를 차지하였다. 따라서 SPME법으로 얻어진 향기성분이 SDE법보다 추출효율은 낮았지만 원래 향에 가까운 것으로 나타났다.

The flavor extracts of Mideoduck muscle and its juices were concentrated by simultaneous distillation and extraction (SDE) and solid-phase microextraction (SPME) methods. Each component present in the extracts was identified with GC and GC-MS by the n-paraffin hydrocarbon retention index and standard MS library data system. By SDE, $371.3\;{\mu}g/g$ of hexanal, $80.1\;{\mu}g/g$ of 1-tridecanol, $72.1\;{\mu}g/g$ of (Z)-4,5-dimethylhex-2-en-4-ol with other alcohols, aldehydes and acids were present in the flavor extracts, with the alcohols having the highest composition and being the most important factor in Mideoduck muscle flavor. By SPME, 9 alcohols, 1 acid, 1 aldehyde, 1 hydrocarbon, 1 ester, 1 amine and 2 ketones were detected in the extracts, with alcohol such as 1-nonanol, 1-decanol and 1-tridecanol as the major components. In SPME, the muscle sample, consisting of $31.6\;{\mu}g/g$ of 1-nonanol, $20.3\;{\mu}g/g$ of (E)-2-butenedioic acid dibutylester, and $26.7\;{\mu}g/g$ of heptadecanoic acid made up the 62.1% of total flavor extracts of Mideoduck muscle. The results of the SPME methods were similar to the composition of the raw material flavor of the sample even at a low concentration.

키워드

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