청주국(淸酒麴)의 균사침투 상태(狀態)와 국효소(麴酵素)의 주류중(酒謬中) 동태(動態)에 관(關)한 연구(硏究)

Studies on Degrees of Kojic Mycelial Penetration and Some Characteristics of Kojic Enzymes in Moromi

본(本) 연구(硏究)는 균사침투가 깊은 koji의 제조조건(製造條件)과 청주료중의 제효소(諸酵素)의 동태(動態)를 조사(調査)한 것으로 다음과 같은 결과(結果)를 얻었다. 1. 원료현미(原料玄米)를 30% 도감(搗減)한 결과(結果), 수분(水分)은 9%, 조단백(粗蛋白)은 26%, 조지방(粗脂肪)은 96% 감소(減少)되었으며 전분가(澱粉價)는 9% 상승(上昇)되었다. 2. 균사침투가 깊은 koji 제조(製造)의 최적조건(最適條件)은 제국시간(製麴時間) 4시간(時間), ${\alpha}$미수분(米水分) 40%, 제국(製麴) 전후반(前後半) 상대습도(相對濕度)가 각각(各各) 98% 및 80%, 접종국균(接種麴菌)의 포자수(胞子數)는 $1.0{\times}10^4\;spores/g{\cdot}{\alpha}$미(米)였다. 3. 청주발효중(淸酒醱酵中) ${\alpha}-Amylase$의 $23{\sim}27%$가 실활(失活)되었으며 $35{\sim}70%$가 흡착(吸着)되었다. 4. 청주발효중(淸酒醱酵中) Glucoamylase의 14%가 실활(失活)되었으며 $74{\sim}92%$가 흡착(吸着)되었다. 5. 청주발효중(淸酒醱酵中) Acid pretense (pH 3.0)의 $13{\sim}14%$가 실활(失活)되 었으며 $70{\sim}73%$가 흡착(吸着)되 었다. 6. 균사침투가 깊은 koji와 얕은 koji 효소(酵素)의 청주발효중(淸酒醱酵中) 뚜렷한 효소적(酵素的) 차이점은 발견되지 않았다.

In order to make the koji in which kojic mycelium penetrate deeply, some koji making conditions were investigated, thereafter kojies were maked on a large scale, and kojic enzymes in moromi were in vestigated. After 30% of brown rice was polished out, moisture, crude protein, and crude fat was decreased by 9%, 26% and 26% respectively, and starch value was increased by 9%. The optimum conditions for the koji in which kojic mycelium penetrate deeply were found as below. Koji making time was 40 hrs., moisture of ${\alpha}-rice$ was 40%, relative humidity during the first half of koji making time was 98%, and also the relative humidity during the second half of koji making thme was 80% and inoculum size was $1.0{\times}10^4$ spores/g ${\alpha}-rice$. 23-27% of ${\alpha}-amylase$ was inactivated and 35-70% of that was adhered during the moromi fermentation. 14% of glucoamylase was inactivated and 74-92% of that was adhered during the moromi fermentation. 13-14% of acid protease(pH 3.0) was inactivated and 70-73% of that was adhered during the moromi fermentation. Remarkable enzymatic differencies in moromi were not found between the kojies in which kojic mycelium penetrate deeply and not.