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부추(Allium tuberosum R.)의 감마선 조사에 의한 휘발성 유기화합물의 성분 변화

Effect of γ-Irradiation on the Volatile Organic Compounds from Leek (Allium tuberosum R.)

  • 한병재 (조선대학교 응용과학과) ;
  • 양숙영 (조선대학교 식품영양학과) ;
  • 김준형 (조선대학교 식품영양학과) ;
  • 심성례 (조선대학교 식품영양학과) ;
  • ;
  • 이성진 (조선대학교 응용과학과) ;
  • 김경수 (조선대학교 식품영양학과)
  • 발행 : 2005.04.01

초록

본 연구에서는 감마선 조사에 의한 부추의 휘발성 유기화합물의 변화를 관찰하였다. 조사되지 않은 부추와 20 kGy의 선량으로 조사된 부추를 SDE방법으로 유기화합물을 추출한 후 정유를 GC/MS로 분석하였다. 비조사 시료와 조사시료에서 각각 56종 ,54종의 화합물이 분리 동정되었으며, alcohol류, aldehyde류, ester류, ketone류, 함질소화합물과 함황화합물을 포함하고 있는 것이 확인되었다. 조사된 부추에 함유된 특징적인 휘발성 유기성분은 조사되지 않은 부추에서의 결과와 유사하였으나, 그 농도에 있어서는 눈에 띄는 차이를 보였다. 두 시료 모두에서 함황화합물이 다량 검출되어 주요 화합물임을 알 수 있었다. 성분들 중에서 다량의 dimethyl trisulfide와 methyl-(Z)-1-propenyl trisulfide가 함황화합물의 상대적 농도에 크게 기여하고 그 외 dimethyl disulfide, 3-ethyl-1,2-dithi-1,2-ene, methyl allyl disulfide와 (E)-2-hexanal도 휘발성 유기성분의 조성에 큰 비중을 차지하였다. 그 중 주된 화합물로 확인된 dimethyl trisulfide와 methyl-(Z)-propenyl trisulfide는 조사된 후 크게 감소된 것이 확인되었으며, 이외에도 (E)-2-hexanal과 3-ethyl-1,2-dithi-5-ene, diallyl trisulfide 역시 눈에 띄게 감소하였다. 이에 반하여 dimethyl disulfide는 조사 후 그 함량이 크게 증가하여 앞의 화합물들과는 다른 경향을 보였으며, 이외에도 diallyl sulfide와 allyl methyl sulfide, pyridine 등도 크게 증가하였다.

Volatile compounds of $\gamma-irradiation$ leeks (Aillum tuberosum R.) were isolated by simultaneous steam distillation and extraction method (SDE) and analyzed by gas chromatography/mass spectrometry (GC/MS) along with the non-irradiated sample. Leeks were irradiated at dose of 20 kGy and non-irradiated samples were considered as control sample. 56 and 54 compounds were identified in non-irradiated and irradiated samples, respectively. These components included the functional groups; alcohols, aldehydes, esters, ketones, N- and S-containing compounds. S-containing compounds such as dimethyl trisulfide, methyl-(Z)-l-proenyl trisulfide, dimethyl disulfide, 3-ethyl-l,2-dithi-5-ene and methyl allyl disulfide were the major compounds. Methyl-(Z)-l-propenyl trisulfide, diallyl trisulfide, (E)-2-hexanal and 3-ethyl-l,2-dithi-5-ene were clearly decreased by the $\gamma-irradiation$, but dimethyl disulfide, diallyl sulfide, allyl methyl sulfide and pyridine were increased by the $\gamma-irradiation$.

키워드

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피인용 문헌

  1. Volatile Compounds of Essential Oils from Allium senescens L. var. senescens vol.28, pp.2, 2012, https://doi.org/10.9724/kfcs.2012.28.2.143