| 标题 |
 书籍（章节） Boosting of LMS-bleaching with hemicellulases. Progress in Biotechnology: 255–262 |
| 网址 | |
| DOI |
10.1016/S0921-0423(02)80028-4
doi
|
| 其它 |
Oksanen, T., et al. (2002). Boosting of LMS-bleaching with hemicellulases. Progress in Biotechnology: 255–262. The simultaneous or sequential combination of hemicellulases with laccase-mediator bleaching systems was shown to result in additional enhancement of pulp bleachability. The simultaneous combination of the two enzymatic steps was clearly more succesful with NHA than with HBT due to the more pronounced inactivation of enzymes by HBT. The lowest kappa number after alkaline extraction was obtained with the sequential use of the two enzyme systems. The effect of mannanase and LMS using NHA as mediator in a simultaneous treatment resulted in the highest brightness value and lowest kappa number. The decrease of kappa number obtained with combined treatments corresponds closely to the individual effects of the hemicellulase and laccase-mediator treatments, indicating that the mechanisms of the treatments are different and thus additional effects of treatments could be gained. |
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