STUDY ON THE REFINABILITY AIDED EFFECT OF TRICHODERMA REESEI CELLULASE ON BLEACHED SIMAO PINE KRAFT PULP
In this paper, bleached Simao Pine kraft pulp was treated with Trichoderma reesei crude cellulase produced by submerged fermentation using the pulp as carbon source in the laboratory. Under the optimized enzyme activity conditions of 50oC and pH 4.8, the activity got for the FPU, C1, Cx and Cb activity was 471.42u/ml, 471.42u/ml, 3083.19u/ml and 27.79u/ml respectively. Compared to the controlled pulp, the refining time of the treated pulp with the enzyme dosage of 7u/g could be reduced by 70 seconds in order to achieve the same beating degree 48oSR, which means a reduction of 20％ refining energy consumption. Pulp properties and viscosity are measured to evaluate the damage of fiber by the cellulase. Even at the dosage of 9u/g, the physical properties of enzyme treated pulp were close to the control pulp.
Trichoderma reesei cellulase activity beating degree pulp physical properties
Zhang Zhengjian Hu Huiren
Tianjin Key Laboratory of Pulp & Paper College of Material Science and Chemical Engineering, Tianjin Tianjin Key Laboratory of Pulp & Paper College of Material Science and Chemical Engineering, Tianjin
国际会议
广州
英文
558-561
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）