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Effect of blanching time on physicochemical characteristics and sensory evaluation of Aster scaber

데치기 시간에 따른 참취의 이화학적 및 관능적 특성의 변화

  • Beom, Seo-Woo (Department of Cosmetology, Cheongam College) ;
  • Jiang, Gui-Hun (Department of Food Science and Technology and Functional Food Research Center, Chonnam National University) ;
  • Eun, Jong-Bang (Department of Food Science and Technology and Functional Food Research Center, Chonnam National University)
  • 범서우 (청암대학교 향장피부미용학과) ;
  • 강귀훈 (전남대학교 식품공학과, 기능성식품연구센터) ;
  • 은종방 (전남대학교 식품공학과, 기능성식품연구센터)
  • Received : 2014.09.25
  • Accepted : 2014.11.21
  • Published : 2015.02.28

Abstract

This study investigated the changes in the physicochemical characteristics and sensory evaluation of Aster scaber by blanching treatment time. Aster scaber was blanched with $100^{\circ}C$ hot water for 1~5 min. At $100^{\circ}C$ blanching, the total polyphenol contents of the sample blanched for 1~5 min ranged from 7.57 to 6.45% while the sample blanched for 5 min showed a severe loss of phenolic compounds. The sample blanched $at 100^{\circ}C$ for 5 min had the lowest $L^*$ and $b^*$ values (24.96 and 16.14, respectively) and the highest $a^*$ value (-10.39) among all the samples. With regard to the texture profile, the sample blanched at $100^{\circ}C$ for 5 min was the highest in texture. Significant reductions in the texture, color, and total phenol content were observed after blanching. In the sensory evaluation, the Aster scaber sample blanched with hot water at $100^{\circ}C$ for 2 min showed the highest color, appearance, and flavor while the sample heated with boiling water for 3 min had the highest sensory score in terms of texture and overall acceptability. In conclusion, the 3 min blanching of Aster scaber yielded the best sensory quality.

본 연구에서는 데치기 시간에 따른 참취의 이화학적 및 관능적 특성을 조사 하였다. 색도 $L^*$값에서는 3분 데치기 한 실험구를 제외한 다른 실험구가 유의적으로 높은 값을 보였으며 $a^*$값에서는 3분, 5분, 데치기한 실험구에서 높은 값을 보였으며, $b^*$값에서는 5분 데치기 처리한 실험구가 3분 데치기한 실험구보다 높은 값을 보였으나 다른 실험구와 유의적인 차이가 없었다. 조직감에서 경도는 참취를 데치기 처리 2, 3분 한 실험구에서 다른 실험구보다 유의적으로 높은 값을 나타내었으며 총 폴리페놀 함량은 데치기 1분부터 4분까지는 유의적으로 큰 차이가 없다가 5분 후에는 낮은 함량을 보였다. 관능평가에서는 참취의 색, 향, 외관에서는 2분 데치기 처리한 실험구에서 유의적으로 높은 값을 보였으나, 조직감, 전체적인 기호도에서는 3분 데치기 처리한 실험구에서 유의적으로 높은 값을 보였다.

Keywords

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