Quality Characteristics of Defatted Rice Bran, Sansung Takju (Cloudy Korean Rice Wine)

탈지 미강 산성 탁주의 품질특성

  • Seo, Bong-Hee (Dept. of Culinary & Food Service Management, Sejong University) ;
  • Hwang, Hyun-Ju (Dept. of Culinary & Food Service Management, Sejong University) ;
  • Sung, Ki-Hyup (Dept. of Culinary & Food Service Management, Sejong University)
  • 서봉희 (세종대학교 조리외식경영학과) ;
  • 황현주 (세종대학교 조리외식경영학과) ;
  • 성기협 (세종대학교 조리외식경영학과)
  • Received : 2015.01.30
  • Accepted : 2015.04.15
  • Published : 2015.04.30

Abstract

In this study, rice bran containing biologically active substances, including oryzanol and dietary fiber, Korean food industry was used in glutinous rice Takju(a cloudy Korean rice wine) fermentation. During fermented in rice wine, four different amounts of defatted rice bran(0, 3, 6, and 10g) were formulated in a recipe and fermentation characteristics, physicochemical properties, and sensory characteristics of product were analyzed. An increase in the amount of defatted rice bran was witnessed by heightened pH values in the fermentation period. The titratable acidity of sansung takju was increased with high levels of defatted rice bran. The titratable acidity of defatted rice bran takju during the fermentation period significantly was decreased, and then increased. FRAP radical-scavenging activity of TDT6 2.56 g/moL, compare with the control group, showed the highest reducing power. The results of the sensory evaluation showed that overall-acceptability had the highest scores in the sansung takju containing TDT3(3%) level of defatted rice bran. In conclusion, sansung takju added with TDT3(3%) of defatted rice bran is rated most prefrence in the four groups in this parts quality and acceptability.

본 연구에서는 현미의 기능성과 식이섬유 등과 같은 다양한 생리활성물질을 갖고 있으면서도 식품소재로의 활용이 미미한 미강을 전통주인 탁주의 제조에 활용하였다. 주정을 활용하여 제조한 탈지 미강을 넣어 제조한 술의 발효과정중의 이화학적 특성 및 발효특성과 탁주의 항산화특성을 비교 분석하였다. 탈지 미강의 첨가량이 증가할수록 pH는 증가하는 경향을 나타내었고, 발효 기간의 경과에 따라 감소하다가 다시 증가하는 경향을 나타내었으며, 유의적인 차이를 보였다(p<0.05). 탈지 미강의 첨가량이 증가할수록 적정산도는 높은 값을 나타내었으며, 유의적인 차이를 나타냈다 (p<0.05). HPLC를 이용한 ethanol의 함량은 탈지미강의 첨가량에 따라 감소하여 control이 16.51%, TDT3이 16.20%(w/v), TDT6이 16.07 %(w/v), TDT10이 15.75%(w/v)의 순으로 나타났다. 산성탁주의 FRAP(ferric reducing antioxidant power) radical-scavenging activity는 TDT6이 2.56 g/moL로 대조군에 비해 높은 환원력을 나타내었다. 산성 탁주의 기호도에 대한 9점 척도법을 분석한 결과 TDT3이 color, sweet taste, sour taste, alcohol taste, overall-acceptability에서 기호도가 높게 나타났다. 이는 TDT3의 산성주가 기호도를 향상시킨 가장 최적의 첨가조건이라고 보며, 탁주의 품질개선에 활용가치가 있으며, 상품화 가능성을 제시한다고 생각된다.

Keywords

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