Journal of Korean Society of Forest Science (한국산림과학회지)
- Volume 39 Issue 1
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- Pages.57-63
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- 1978
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- 2586-6613(pISSN)
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- 2586-6621(eISSN)
Studies on the Hydrolysis of Holocellulose with Trichoderma viride Cellulase - (II) Effects of the Reaction Conditions -
Cellulase에 의(依)한 목재당화(木材糖化)에 관(關)한 연구(硏究) - (II) 반응조건(反應條件)의 효과(効果) -
- Min, Du Sik (College of Agr. Chung-Buk University)
- 민두식 (충북대학교 농과대학)
- Received : 1978.08.14
- Published : 1978.09.30
Abstract
Enzymatic hydrolysis of the substrate from Alnus hirsuta (Spach) Rupr (8-14years) was investigated using cellulase preparations of Trichoderma viride Pers. ex. Fr. SANK 16374 and conduced on the optimum reaction conditions of the cellulase on saccharification. The crude cellulase was produced by the submerged culture process and produced in the culture fluid was salted out quantitatively by the use of ammonium sulfate. The method of delignification from wood(Saw dust) was treated by the peracetic acid (PA) method. Reducing sugar was determined by the dinitrosalicylic acid (DNS) method. The results were summerized as follows; 1. The optimum pH of cellulase was 5.0 and the range of stability with respect to pH was generally from 4.0 to 6.0 2. The optimum temperature of cellulase was generally
Trichoderma viride SANK호(號) cellulase에 의(依)한 목재(木材) 가수분해(加水分解)에 관(關)한 연구(硏究)로서 재료(材料)는 산오리나무재(材)를 사용(使用)하였다. 그리고 당생성(糖生成)을 위한 cellulase의 최적(最適) 반응조건(反應條件)을 조사(調査)하였다. Trichoderma viride 조효소액(粗酵素液)은 진탕배양법(振盪培養法)에 의(依)하여 생산(生產)하였고, 이것을 염석효소액(鹽析酵素液)을 조제(調製)하여 사용(使用)하였다. 기질(基質)은 산오리나무재(材) 톱밥을 과초산법(過醋酸法)에 의(依)하여 탈(脫)리그닌 한것을 사용(使用)하였다. 환원당(還元糖) 정량(定量)은 DNS법(法)에 의(依)하였다. 결과(結果)는 다음과 같다. 1. 최적(最適) pH는 5.0이며, pH 안정성(安定性)의 범위(範圍)는 4.0~6.0으로 나타났다. 2. 반응온도(反應溫度)는
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