Applied Biological Chemistry
- Volume 23 Issue 3
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- Pages.157-165
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- 1980
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- 2468-0834(pISSN)
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- 2468-0842(eISSN)
The Brewing of Kochuzang (Red Pepper Paste) from Different Starch Sources - Part I. Proximate Component and Enzyme Activity during Koji Prepartion -
전분질(澱粉質) 원료(原料)를 달리한 고추장의 양조(釀造) - 제1보(第1報). 제국과정(製麴過程)중의 일반성분(一般成分)과 효소력(酵素力) -
- Lee, Taik-Soo (Lab. of Sampyo Foods Ind. Co., Ltd.) ;
- Cho, Han-Ok (King Sejong University) ;
- Kim, Chul-Soo (Lab. of Sampyo Foods Ind. Co., Ltd.) ;
- Kim, Jong-Goon (King Sejong University)
- Published : 1980.09.30
Abstract
Kojis were prepared from the different starch raw materials such as glutinous rice, barley rice, wheat flour and sweet potato, and were tested in an effort to reduce production cost and to improve quality of Kochuzang(red pepper paste). During the starting period of Koji preparation, there were less significant changes in pH; however, pH decreased somehow in the case of sweet potato, whereas it increased for the other Kojis. In general, the highest acidity was obtained after 72 hours of Koji preparation. Total nitrogen, soluble nitrogen and amino-nitrogen content increased in order of wheat flour, barley rice, and glutinous rice; Kojis they were markedly produced between 72 and 96 hours of Koji preparation. The maximum amount of reducing sugar was observed between 48 and 72 hours of Koji preparation during this period the reducing sugar content varied widely depending on starch source. Sweet potato Koji produced the highest level of ethyl alcohol content after 72 hours of Koji preparation; for the other Koji the same trends were observed after 24 hours. The starch liquefying activities have reached the highest level after 96 hours and for glutinous rice and barley rice; however, they kept on increasing until 120 hours for wheat flour and sweet potato. Koji Starch liquefying and saccharogenic amylase activities tended to increase in order of sweet potato, glutinous rice, barley rice and wheat flour. Kojis Various protease activities were measu-red during the Koji preparation, and they increased in order of alkali, neutral and acidic protease.
고추장의 품질개선(品質改善)과 원가절감을 목적(目的)으로 전분질원료(澱粉質原料)(찹쌀, 보리쌀, 밀가루, 고구마)의 종류(種類)를 달리하여 제국(製麴)및 고추장 담금을 행한후 경시적(經時的)으로 효소력(酵素力), 일반성분(一般成分)및 특수성분(特殊成分)의 측정(測定)과 관능시험(官能試驗)을 하였다. 그 일단계로 제국과정중(製麴過程中) 일반성분(一般成分)과 효소력(酵素力)에 대하여 실험(實驗)한 결과(結果)는 다음과 같다. (1) pH는 제국초기(製麴初期)에는 큰 차이(差異)가 없었으나 제국(製麴) 48시간(48時間) 이후(以後)는 고구마국(麴)에서는 pH가 다소저하(多少低下)하였으나 찹쌀국(麴), 보리쌀국(麴), 밀가루국(麴)에 있어서는 pH의 상승(上昇)을 초래했다. (2) 적정산도(滴定酸度)는 대체로 제국(製麴) 72시간경(72時間頃) 최대치(最大値)를 나타내었고 고구마국(麴)과 밀가루국(麴)이 높았다. (3) 총질소(總窒素), 수용성질소(水溶性窒素), 아미노태질소(態窒素)의 함량(含量)은 대체로 밀가루국(麴), 보리쌀국(麴), 찹쌀국(麴), 고구마국(麴)의 순으로 높게 나타났고, 이들의 질소성분(窒素成分) 최대생성시기(最大生成時期)는 시료(試料)에 따라 차이가 있으나 고구마국(麴)을 제외하고 대체로 제국(製麴)
Keywords