Ziaie-Shirkolaee Y, Talebizadeh A, Soltanali S
Department of Chemical Engineering, Faculty of Engineering, Tehran University, P.O. Box, 11365/4563 Tehran, Iran.
Bioresour Technol. 2008 Nov;99(16):7433-7. doi: 10.1016/j.biortech.2008.02.032. Epub 2008 Apr 1.
Biobleaching of three non wood kraft pulps (bagasse, rice straw and wheat straw) by Thermomyces lanuginosus SSBP xylanase and commercial xylanase (cartazyme sandoz), was studied in order to investigate their potential and effect on their various properties (reduction sugars, chlorine dioxide, kappa number, brightness and chromophores). In generally, xylanases released chromophores and reducing sugars and decreased kappa number of pulps. These samples gained over six brightness points over controls. Biobleaching of rice straw pulp with xylanase cartazyme (Sandoz) produced chlorine dioxide savings of up to 25% or 3.5-4 kg chlorine dioxide/ton pulp.
为了研究嗜热栖热菌SSBP木聚糖酶和商业木聚糖酶（卡尔他酶 山德士）对三种非木材硫酸盐浆（甘蔗渣、稻草和麦草）的生物漂白作用及其对各种性能（还原糖、二氧化氯、卡伯值、亮度和发色团）的影响，进行了实验。总体而言，木聚糖酶能释放发色团和还原糖，并降低纸浆的卡伯值。这些样品比对照样亮度提高了六个点以上。用卡尔他酶（山德士）对稻草浆进行生物漂白，可节省高达25%的二氧化氯，即每吨纸浆节省3.5 - 4千克二氧化氯。
