Studies on the Cellulase (I) On the character of cellulase by Rhizopus strain.

섬유소분해효소에 관한 연구 (제 1 ) Rhizopus 이 생성하는 Cellulase 의 성에 대하여

To research the characteristics of cellulose produced from one strains of Rhizopus(R-B 14) when it acts on the carboxyl methyl cellulose, this experiment was carried out in crude purified cellulose. The results obtained were as follows: 1. The optimum pH of cellulose was from 4. 5 to 5 .5 and the range of its stability to the pH was considerably extensive and it was from 4 to 7. 2. The optimum temperature of cellulose was $50^{\circ}C$ and the activity of it was instantly inactivated at $70^{\circ}C$. 3. The inhibition of the metal ions to the activity of cellulose was as follows; $Hg^{++}$ > $Ag^+$ +/ > $Fe^{+++}$ > $Pb^{++}$. But the activity of cellulose was not affected at all by $Na^+$, $K^+$ and $Mg^{++}$.