Analysis for Cyclodextrins to Entrap with Hexanal using Electronic Nose

전자코를 이용한 헥사날과 싸이클로덱스트린의 결합 분석

  • Youn, Aye-Ree (Department of Food Science and Technology, Seoul Women's University) ;
  • Noh, Bong-Soo (Department of Food Science and Technology, Seoul Women's University)
  • 윤예리 (서울여자대학교 식품공학과) ;
  • 노봉수 (서울여자대학교 식품공학과)
  • Published : 2007.02.28

Abstract

The effectiveness of cyclodextrin(CD) on binding and/or entrapping hexanal in model solution was investigated. The types and concentration of CDs for entrapping hexanal were studied using electronic nose, which composed of metal oxide sensor or was based on GC with surface acoustic wave sensor. ${\alpha}-CD$ was the most effective for lowering headspace concentration of hexanal in model solution. As concentration of CD increased, hexanal concentration in the headspace decreased significantly. Addition of 5% ${\beta}-CD$ to hexanal in model system resulted in 86% reduction of hexanal in the headspace. There was no difference between control and treatment at the initial stage of binding CD with hexanal while reduction of hexanal in the headspace was found during storage time. This could be estimated by electronic nose.

이취성분의 하나인 헥사날이 CD 종류, CD 농도, 저장기간에 따라 결합하는 정도를 전자코를 이용하여 분석하였다. 여러 종류의 CD 중에서 ${\alpha}-CD$가 헥사날과 가장 많은 양이 반응하면서 CD복합체를 이루었다. CD의 농도가 증가할수록 잔존하는 헥사날의 양이 감소하였는데 5% ${\beta}-CD$ 첨가시 86%의 헥사날이 감소하여 헥사날-CD복합체를 이루고 있음을 보여 주었다. CD복합체를 이룬 후 저장초기 상태에서는 헥사날의 양 변화에 별다른 차이가 없었지만 저장일이 지남에 따라 헥사날의 양이 점차 감소하였다. 또한 저장기간이 지남에 따라 자연 휘발되는 양보다는 CD와의 결합에 의해 헥사날의 양의 감소효과가 더 큰 것을 알 수 있었으며 이런 정도를 전자코로 분석할 수 있었다.

Keywords

References

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