The optimum temperature and pH of the purified cellulase of MSL2
isolate were determined, by varying reaction temperatures from 30 to 70°C, and pH from 2 to 10. To test the effect of pH, each reaction was performed in appropriate buffer (containing 2% w/v of CMC) that adjusted pH to tested condition (2.0–6.0, sodium acetate; 6.0–8.0 sodium phosphate; 8.0–10.0 Tris–HCl). The reactions were set up at 50°C. To test the effect of temperature, each reaction was performed in 30 mM sodium phosphate buffer containing 2% w/v of CMC at pH of 6.0. After 2 h incubation, each reaction was stopped by heating at 100°C for 5 min; amounts of reducing sugars were measured by using DNS assay.
The optimum temperature and pH of the purified cellulase of MSL2isolate were determined, by varying reaction temperatures from 30 to 70°C, and pH from 2 to 10. To test the effect of pH, each reaction was performed in appropriate buffer (containing 2% w/v of CMC) that adjusted pH to tested condition (2.0–6.0, sodium acetate; 6.0–8.0 sodium phosphate; 8.0–10.0 Tris–HCl). The reactions were set up at 50°C. To test the effect of temperature, each reaction was performed in 30 mM sodium phosphate buffer containing 2% w/v of CMC at pH of 6.0. After 2 h incubation, each reaction was stopped by heating at 100°C for 5 min; amounts of reducing sugars were measured by using DNS assay.
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