Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Taste Component and Microbial Properties of Traditional Doenjang Supplemented with Extracts of Korean Herb Medicines

국산 한약재추출물을 이용한 전통 콩된장의 맛 성분 및 미생물 특성

  • Park Seok-Kyu (Korea Fomented Food Research Institute, Dept. of Food and Nutrition, Sunchon National University) ;
  • Jeong Hoe-Jeong (Korea Fomented Food Research Institute, Dept. of Food and Nutrition, Gyeongsang National University) ;
  • Shon Mi-Yae (Korea Fomented Food Research Institute, Dept. of Food and Nutrition, Gyeongsang National University) ;
  • Lee Sang-Won (Korea Fomented Food Research Institute, Dept. of Microbiological Engineering, Jinju National University)
  • 박석규 (한국전통발효식품연구소, 순천대학교 식품영양학과) ;
  • 정회정 (한국전통발효식품연구소, 경상대학교 식품영양학과) ;
  • 손미예 (한국전통발효식품연구소, 경상대학교 식품영양학과) ;
  • 이상원 (한국전통발효식품연구소, 진주산업대학교 미생물공학과)
  • Published : 2006.02.01
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Abstract

The effect of traditional Doenjang supplemented with the extracts of herb medicines (refer as DHM) on the taste component and microbial properties was investigated. The DHMs were divided to four group. Fatty acid compositions were similar between DHMs and control as ratio of each fatty acid to total fatty acids. Concentration of total free amino acid from groups II , III and IV was higher than that of control. Major organic acids were phytic acid, lactic acid, and butyric acid. In isoflavone of DHMs, free daidzein and genistein contents were mostly similar among the groups, and groups m and W were slightly higher as compared with control. Viable cell count of DHMs was shown to be $2.5\times10^7\;CFU/ml$, a similar trend of control. Protease activity of DHMs was higher than that of control(67.65 units), but amylase activity between DHMs and control was almost identical Sensory scores of group II and IV were shown to be brighter than those of group I and II, and decreasing off-odor was more effective. In over all eating-quality, group III and IV were evaluated to be favorable as compared with control and the other DHMs because of supplementing the sweet taste of extracts to Korean indigenous Doenjang.

국산 한약재추출물을 첨가하여 제조한 전통 콩된장의 맛 성분 및 미생물학적 특성을 검토하였다. 한약재추출물 첨가 된장의 지방산 조성은 대조구와 유사한 패턴을 나타내었으며, 그 비율은 linoleic acid가 전체 지방산중에 약 $50\%$로 가장 높았으며, 다음은 oleic acid가 $26\%$를 차지하였다. 유리 아미노산 함량은 대조구$(446.79\;mg\%)$보다 한약재추출물 첨가 된장에서$(434.47\~621.6\;mg\%)$ 높게 나타났다. 유기산의 주성분은 phytic acid, lactic acid, butyric acid였고, 그 외에 acetic acid, citric acid, malonic acid, tartaric acid 및 pyroglutamic acid 등이 검출되었다. Daidzein 및 genistein 함량은 전체적으로 비슷하였으나 III군과 IV군은 약간 높은 값을 나타내었다. 한약재추출물 첨가 된장의 생균수는 대조구와 비슷한 $2.5\times10^7\;CFU/ml$정도 이였으며, protease활성은 대조구(67.65 units) 보다 약간 높은 값을 나타내었으나 amylase활성은 거의 비슷하였다. 관능검사 결과 III군과 IV군은 I과 II군의 된장보다 밝은 색깔을 나타내고 이상취를 절감하는 효과를 나타내었다. 특히 단맛이 적절하게 보완되어 대조구보다 종합적인 맛이 우수한 것으로 평가되었다.

Keywords

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