Journal of the East Asian Society of Dietary Life (동아시아식생활학회지)

The East Asian Society of Dietary Life (동아시아식생활학회)
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Quality Properties of Takju(Rice Wine) Added with Kidney Bean

강낭콩을 첨가한 탁주의 품질 특성

  • Park, Sang-Soon (Dept. of Food Science & Technology, Seoul National University Technology) ;
  • Yoon, Jin-A (Dept. of Food & Nutrition, Baewha Women's University) ;
  • Kim, Je-Jung (Dept. of Food Science & Technology, Seoul National University Technology)
  • 박상순 (서울산업대학교 식품공학과) ;
  • 윤진아 (배화여자대학교 식품영양과) ;
  • 김제중 (서울산업대학교 식품공학과)
  • Received : 2010.06.18
  • Accepted : 2010.08.24
  • Published : 2010.08.31
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Abstract

Kidney bean was used in the brewing of Takju. The Takju formed varied the percentage of kidney bean used; that is, 0%(only rice) in $T_{-1}$, 100%(only kidney bean) in $T_{-2}$, 90% in $T_{-3}$, 80% in $T_{-4}$, 70% in $T_{-5}$, 60% in $T_{-6}$, and 50% in $T_{-7}$. We determined the total sugar, pH, reducing sugar, alcohol production, acidity, and DPPH free radical scavenging activity of Takju. The acidic value of $T_{-1}$ was above that of $T_{-6}$, and the pH of $T_{-2}$ was above that of $T_{-1}$. Both satisfy the food code parameters (namely, below 0.5 in acidity, 3.8~4.7 in pH). The alcohol production of $T_{-1}$ was above that of $T_{-2}$. For 2 days of fermentation, the reducing sugar of $T_{-1}$ totaled 2, down from 4.96%. After fermentation, there was not much difference from 4 to 12 days. The antioxidative effect of $T_{-1}$ proved to be much better than those of the other. Thus, we can be seen that these results thus indicate that the role of kidney bean added to Takju show good antioxidative activity. From the result of sensory test, we also concluded that the taste of Takju kidney bean is very similar to that of Takju with rice.

강낭콩의 비율을 달리하여 제조한 탁주의 이화학적 물성변화를 검토한 결과, 다음과 같은 결과를 얻었다. 총산의 경우, $T_{-5}$에서 산도가 0.70%로 가장 높았고, $T_{-6}$에서 0.50%로 가장 낮은 결과를 보여주고 있다(p<0.05). pH는 발효 종료 후 $T_{-1}$에서 3.82에서부터, $T_{-2}$에서 4.19로 주세법상 탁주 pH 범위인 3.8~4.7에서 벗어나지 않았다(p<0.05). 환원당의 경우, 발효 2일째 전체적으로 환원당 함량이 $T_{-1}$ 4.96에서 2.00%로 가장 많이 감소하는 경향을 보이고 있으며, 발효 종료 후 환원당 함량의 분포를 살펴보면 $T_{-1}$ 0.49에서부터 $T_{-7}$ 0.59%의 분포를 보여주고 있고(p<0.05), 발효 6일째부터 12일째까지 완만한 변화를 보였다. 알코올 생산량은 발효 직후 $T_{-1}$에서 17.43%로 가장 높게 나타났고, $T_{-2}$에서 13.83%로 가장 낮았다(p<0.05). 항산화 효과는 $T_{-1}$ 40.0%, $T_{-2}$ 57.0%, $T_{-3}$ 50.1%, $T_{-4}$ 47.0%, $T_{-5}$ 47.1%, $T_{-6}$ 46.0% 그리고 $T_{-7}$ 45.0%의 항산화 활성을 보이고 있으며, 강낭콩 함량이 높은 시료에서 항산화 활성이 높게 나타나는 것을 확인할 수 있었다. 관능검사 측정 결과, 단맛, 신맛, 조직감 그리고 기호도를 평가한 결과, 각 시료간의 유의차를 확인할 수 있었다(p<0.05). 강낭콩으로 담금한 탁주가 백미로 담금한 탁주에 비해 조직감과 선호도에서 좋은 결과를 보이고 있어 새로운 제품으로서의 가능성을 확인할 수 있었다.

Keywords

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