한국식생활문화학회지 (Journal of the Korean Society of Food Culture)

  • 제22권1호
  • /
  • Pages.83-90
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  • 2007
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  • 1225-7060(pISSN)
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  • 2288-7148(eISSN)
한국식생활문화학회 (Korean Society of Food Culture)
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유과의 저장기간에 따른 휘발성 향미성분 및 특성 분석

Changes of Korean Traditional Yu-gwa Flavor and Characteristics during Storage

  • 유승석 (세종대학교 조리외식경영학과)
  • Yoo, Seung-Seok (Department of Culinary and Foodservice Management, Sejong University)
  • 발행 : 2007.02.28
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초록

The changes of the color, texture and volatile flavor compounds of Yu-gwa were investigated that affected by the oxidation during storage to characteristic Yu-gwa quality. Among the proximate compositions, carbohydrate was the most abundant component, and followed by lipid and moisture. Although the change of the color showed different pattern by the packaging materials during the storage period, the value of yellowness(b) increased but that of lightness(L) decreased dramatically after 3 month storage. In the textural properties reported closely related with the moisture content, hardness was fairly affected on the period of the storage rather than the type of packaging materials. The flavor compounds of Yu-gwa were analyzed to evaluate the change of distinct volatile compounds during storage. Of the twenty one separated volatile compounds, major volatiles were aldehydes, alcohols and alkenes. The results also showed that polyethylene(PE) contained less volatiles than polypropylene(PP) by the oxidation process during storage.2,4-Decadienal was gradually increased with the period of the storage, whereas octane and furan were decreased. The results provided that the change of the flavor distribution during the storage, and also the possibility of the volatiles such as hexanal, nonanal and 2,4-decadienal as the indicator for the oxidation process.

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