Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria INIA, Carretera de la Coruña, km 7.5, 28040 Madrid, Spain.
Bioresour Technol. 2012 May;111:460-7. doi: 10.1016/j.biortech.2012.02.024. Epub 2012 Feb 11.
A non-wood raw material with high potential for pulp and paper applications (Hesperaloe funifera) was subjected to a steam explosion pre-treatment, and the subsequent effect of this pretreatment on biopulping and biobleaching was studied. An increase in the delignification rate, bigger than that reported for autohydrolysis and acid hydrolysis pre-treatments, and a reduction in chemical consumption were found during kraft pulping of the exploded samples. However, biopulping with the laccase-mediator system (LMS) did not lead to a reduction in the kappa number in either non-exploded or exploded unbleached pulps. On the other hand, the steam explosion pretreatment boosted the advantages of the LMS pre-treatment (decrease in kappa number and increase in brightness) favored biobleaching, with a 53.1% delignification rate and a final brightness of 67% ISO. Finally, the steam explosion pre-treatment also improved the color properties of the bleached pulp and reduced the hydrogen peroxide consumption by 24.6%.
一种具有高制浆造纸潜力的非木材原料（鹤望兰）经过蒸汽爆破预处理，随后研究了这种预处理对生物制浆和生物漂白的影响。与自水解和酸水解预处理相比，爆破样品的硫酸盐法制浆过程中的脱木质素率增加，化学品消耗减少。然而，漆酶-介体系统（LMS）的生物制浆并没有导致未爆破或爆破的未漂浆的卡伯值降低。另一方面，蒸汽爆破预处理增强了 LMS 预处理（降低卡伯值和提高白度）有利于生物漂白的优势，脱木质素率为 53.1%，最终白度为 67%ISO。最后，蒸汽爆破预处理还改善了漂白浆的颜色性能，使过氧化氢的消耗减少了 24.6%。
