Applied Biological Chemistry
- Volume 24 Issue 3
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- Pages.200-205
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- 1981
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- 2468-0834(pISSN)
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- 2468-0842(eISSN)
A Study on the Color Change of Soysauce
장유(醬油)의 색변화(色變化)에 관(關)한 연구(硏究)
- Chung, Koo-Min (Dept. of Food Technology, College of Agriculture, Seoul National University) ;
- Cho, Sung-Whan (King Sejong University) ;
- Kim, Ze-Uook (Dept. of Food Technology, College of Agriculture, Seoul National University)
- Published : 1981.09.30
Abstract
Some chemical components, absorbance at 450nm and color of traditional and improved soysauce during fermentation were investigated. The traditional soysauce was made from soybean Meju and the improved soysauces were prepared from Kojis of various mixtures of soybean and wheat. The contents of reducing sugar were higher in the improved soysauces than in the traditional soysauce and it increased with proportion to the mixing amount of wheat. The contents of total nitrogen and amino nitrogen were increased gradually during fermentation and, in the improved soysauce, it increased with the amount of soybean. The changes of the absorbance and the chromaticity were greaser in the traditional soysauce than in the improved soysauce during fermentation. The increase of absorbance and the chromaticity was greater in the improved soysauce than that of the traditional soysauce during heating process. In the improved soysauce, the greater the amounts of wheat in Koji, the greater the increase of color.
메주를 사용(使用)한 재래식(在來式)과, Koji를 사용(使用)한 개량식(改良式) 간장을 원료배합비(原料配合比)를 다르게 담그어 숙성중(熟成中) 환원당(還元糖), 전질소(全室素), 아미노태질소(態室素)의 성분변화(成分變化)와 흡광도(吸光度), 색도변화(色度變化)를 측정(測定)한 다음, 숙성후(熟成後) 가열(加熱)에 의(依)한 흡광도(吸崙度)와 색도변화(色度變化)를 측정(測定)한 결과는 다음과 같다. 환원당(還元精)의 함량(含量)은 재래식(在來式)에 비(比)하여 개량식(改良式) 간장이 더 많고 밀의 배합량(配合量)이 많을 수록 더 하였다. 전질소(全室素)와 아미노태질소(態室素)의 함량(含量)은 시간(時間)이 경과할수록 증가(增加)하였고, 콩의 배합량(配合量)이 많으면 이 함량(含量)도 많았으나 시료간(試料間)에는 큰 차이(差異)가 없었다. 숙성중(熟成中) 흡광도(吸光度)와 색도(色度)는 재래식(在來式) 간장의 경우 많이 증가(增加)하였으나 개량식(改良式) 간장은 별로 증가(增加)하지 않았다. 가열중(加熱中) 흡광도(吸光度)와 색도(色度)는 대체로 개량식(改良式) 간장이 재래식(在來式) 간장에 비(比)하여 더 증가(增加)하였으며 밀의 배합량(配合量)이 많은 구(區)일수록 증가량(增加量)도 컸다.
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