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Physicochemical and Sensory Characteristics of Yakju Fermented with Different Ratios of Dandelion (Taraxacum platycarpum) Root Powder

민들레 뿌리분말의 첨가비율을 달리하여 제조한 민들레 약주의 이화학적 및 관능적 특성

  • Lee, Jong-Bok (Dept. of Food Science and Technology, Yeungnam University) ;
  • Lee, Jong-Suk (Dept. of Food Science and Technology, Yeungnam University) ;
  • Kim, Myung-Hee (Dept. of Food Science and Technology, Yeungnam University)
  • Received : 2012.02.28
  • Accepted : 2012.04.20
  • Published : 2012.06.30

Abstract

The physicochemical and sensory characteristics of Yakju fermented with different ratios of Taraxacum platycarpum (dandelion) root powder (0, 5, 10, and 15%) were investigated. The pH of Yakju decreased and the total acidity and sugar content increased according to the addition of dandelion root powder. Dandelion root powder (15%) showed significantly higher reducing sugar content on the 3rd day of fermentation compared with other groups, including the control. Also, further exposure of fermentation time showed a declining pattern of reducing sugar content. Including control, the alcohol content increased in all Yakju samples fermented with dandelion root powder as fermentation progressed. The Yakju fermented with 5% dandelion root powder showed the highest sensory scores for color, aroma, taste, swallowing, and overall acceptability as $6.38{\pm}1.27$, $5.58{\pm}1.02$, $5.79{\pm}0.98$, $6.08{\pm}1.21$, and $5.96{\pm}0.91$, respectively. In the present study for the production of Yakju, 5% dandelion root powder was the most appropriate amount to be added for the production of Yakju. The result obtained here may provide fundamental data for the traditional Yakju industry, which is interested in using a variety of natural resources.

민들레 뿌리분말의 첨가비율(0, 5, 10, 15%)을 달리하여 제조한 민들레 약주의 이화학적 및 관능적 특성을 조사하였다. 민들레 뿌리분말 첨가량의 증가에 따른 pH 변화는 미미하였고, 산도와 당도는 15% 첨가구가 각각 가장 높은 함량을 나타났다. 환원당 함량은 민들레 뿌리분말 15% 첨가구가 발효 3일째에 다른 시료구에 비하여 가장 높았으며, 그 이후에는 급격하게 감소하여 다른 시험구와 비슷한 함량을 나타내었고, 알코올 함량은 발효가 진행됨에 따라 시험구 모두 증가하였다. 민들레 뿌리분말 첨가 비율을 달리하여 제조한 약주의 관능적 특성은 첨가 비율이 10, 15%로 증가할수록 종합적 기호도가 좋지 않았으며, 첨가 비율이 5%인 시험구가 색, 향, 맛, 목넘김, 종합적 기호도가 우수하였다. 이와같이 민들레 뿌리분말의 첨가 비율을 달리하여 제조한 약주의 이화학적 및 관능적 특성을 검토한 결과, 민들레 뿌리분말 5%를 첨가하여 제조한 약주가 가장 우수한 것으로 나타났다. 위의 실험 결과, 민들레 뿌리분말로 약주를 제조할 경우, 민들레 뿌리분말 5%를 첨가하는 것이 가장 적합함을 알 수 있었다.

Keywords

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