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Effect of Gamma-Irradiation on the Volatile Flavor Compounds from Dried Ginger (Zingiber officinale Roscoe)

건조생강의 감마선 조사에 의한 휘발성 향기성분 변화

  • 노기미 (조선대학교 식품영양학과) ;
  • 서혜영 (조선대학교 식품영양학과) ;
  • ;
  • 심성례 (조선대학교 식품영양학과) ;
  • 양수형 (조선대학교 식품영양학과) ;
  • 이성진 (조선대학교 응용과학과) ;
  • 김경수 (조선대학교 식품영양학과)
  • Published : 2005.07.01

Abstract

The effect of gamma irradiation on volatile components of Korean dried ginger (Zingiber officinale Roscoe) was studied and compared with non-irradiated sample. Volatile compounds from non- and irradiated samples were extracted using simultaneous distillation-extraction (SDE) apparatus and analyzed by gas chromatography-mass spectrometer (GC/MS). A total of 83 and 71 compounds were identified and quantified from non-and irradiated dried ginger at dose of 10 kGy. Identified components were hydrocarbons, alcohols, aldehydes, esters, ketones and miscellaneous compounds. The terpenoid compounds in volatile flavor compounds identified from non and irradiatied dried ginger were $98.27\%\;and\;98.12\%$, respectively. $\alpha$ -zingiberene,$\beta$-sesquiphelland reno, geranial, (Z,E) $\alpha$ -farnesene, $\beta$ -phellandene were detected as major volatile compounds of two experimental sample. The amount of volatile components in the samples was changed by irradiation but the profile of volatiles in non- and irradiated dried ginger were the same.

본 연구에서는 세계적으로 널리 이용되고 있는 건조 향신료 중 건조생강의 감마선 조사에 의한 휘발성 향기성분의 변화를 관찰하였다. 비조사 건조생강과 10 kGy의 선량으로 조사처리된 건조생강을 SDE방법으로 휘발성 성분 추출후 GC/MS로 분석하였다. 비조사 시료와 조사시료에서 각각 83종, 71종의 화합물이 분리 동정되었으며, 감마선 조사에 따른 뚜렷한 상관관계는 없었다. 건조생강의 주된 향기성분으로는 $\alpha$-zlngiberene, $\beta$-sesquiphellandrene, geranial, (Z, E)-$\alpha$-farnesene, $\beta$-phellandrene으로 이는 조사 처리된 건조생강의 휘발성 향기성분의 조성과 유사함을 알 수 있었다. 방사선 비조사 및 조사 처리된 정유성분의 총량은 각각 $98.27\%$에서 $98.12\%$$ 0.15\%$ 감소하였으며 monoterpene은 $17.15\%$에서 $17.90\%$로 미량 증가하였으며 , sesquiterpene은 $60.99\%$에서 $61.24\%$로 증가하였다. 반면 oxygenated monoterpene과 oxygenated sesquiterpene은 각각 $0.5\%$$0.65\%$ 감소되었다. 성분들 중에서 감마선 조사에 따라 $\alpha$-zingiberene, $\beta$-sesquiphellandrene, geranial, (Z,E)-$\alpha$-farnesenesene, $\beta$-phellandrene등의 합량이 감소됨을 알 수 있었지만 이는 소량으로 감마선 조사가 건조생강의 관능적 요소에 미치는 영향으로 보기는 어렵다.

Keywords

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