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전자선 조사가 신고배의 향기성분에 미치는 영향

Effect of Electron-Beam Irradiation on Flavor Components in Pear (Pyrus pyrifolia cv. Niitaka)

  • 김원 (조선대학교 식품영양학과) ;
  • 심성례 (조선대학교 식품영양학과) ;
  • 유근영 (조선대학교 식품영양학과) ;
  • 전삼녀 (조선대학교 식품영양학과) ;
  • 정찬희 (조선대학교 응용과학과) ;
  • 서혜영 (한국식품연구원) ;
  • 송현파 (충남대학교 동물자원생명공학) ;
  • 김경수 (조선대학교 식품영양학과)
  • 발행 : 2008.02.29

초록

신고배(Pyrus pyrifolia cv. Niitaka)의 휘발성 향기성분에 전자선 조사의 영향과 전자선 조사 후 저장기간에 따른 휘발성 향기성분의 변화를 확인하기 위하여 본 연구를 수행하였다. SDE 추출방법과 GC/MS 분석에 의하여 선량에 따른 신고배의 휘발성 향기성분을 분석하였다. 비조사 신고배와 전자선 0.25, 0.5, 1 그리고 3 kGy로 조사된 신고배에서 각각 46, 45, 44, 48 그리고 51종의 화합물을 동정하였다. 신고배의 주요 휘발성 향기성분으로는 $C_6$ 화합물인 hexanal, n-hexanol, (E)-2-hexenal이 분리 동정되었다. $4^{\circ}C$에서 30일 저장 후 신고배의 휘발성 향기성분의 조성은 유사하였으며, 저장기간 동안 크게 변화가 없었다. 소비자 수용성에 기여하는 휘발성 향기성분에 대하여 전자선 조사는 휘발성 향기성분의 변화에 크게 영향을 미치지 않는 것으로 판단되었다. 관능평가 실시 결과, 1 kGy 이하의 저선량으로 전자선 조사된 배의 기호도가 대조군보다 오히려 약간 높은 것으로 나타났으며 유의적인 차이는 없었다. 위의 결과를 토대로 신고배의 전자선 조사기술을 적용하기 위해서는 다양한 실험방법을 통한 지속적인 연구가 필요할 것으로 사료된다.

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