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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2000.2
- 수록면
- 9 - 13 (5page)
이용수
초록· 키워드
In order to determine the characteristics of β-glucosidase associated with cellulose degradation, the enzyme produced extracellularly by the mycelia of Tricholoma matsutake DGUM 26001 in culture broth was partially purified. The enzyme activity was maintained in the range of temperatures from 55 to 70°C and its optimum temperature was 65°C. The β-glucosidase enzyme showed relatively high activity in the range of pH 3.0-5.0 and its optimum pH was 4.0. Under the optimal conditions, the specific activity of β-glucosidase for salicin as a substrate was 18.7 unit/mg protein. After thermal treatment of the enzyme at 55°C for 60 min, more than 90% of the enzyme activity was still sustained. Iron(Fe++) stimulated enzyme activity, whereas mercury(Hg++) and copper(Cu++) inhibited. Compared to salicin as a substrate, the relative activity for cellobiose was observed to be 48.6%. The apparent Km and Vmax of the enzyme with cellobiose were 0.12 mM and 0.02 umol/min, respectively.
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