Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai 400 019, India.
Appl Biochem Biotechnol. 2012 Oct;168(4):731-41. doi: 10.1007/s12010-012-9813-6. Epub 2012 Aug 14.
In the present work, a novel approach to pretreat wheat straw pulping was investigated with ultrasound and xylanase to achieve maximum reduction in lignin content. Sequential xylanase pretreatment and alkaline pulping was found to reduce kappa number by 0.31 to 4.84 % compared with only alkaline pulping alone at different pulping conditions. Although Klason lignin of ultrasound-treated straw was found to be 7.37 % less compared with untreated straw, sequential ultrasound pretreatment and alkaline pulping could not show any significant reduction in kappa number compared with alkaline pulping alone. Also, sequential xylanase and ultrasound pretreatment could not show any significant reduction in kappa number. Total yield of the pulp was found to be less in ultrasound-assisted processing compared with both alkaline pulping alone and sequential xylanase pretreatment and alkaline pulping.
在本工作中，研究了一种用超声波和木聚糖酶预处理麦草制浆的新方法，以最大限度地降低木质素含量。与单独的碱性制浆相比，在不同的制浆条件下，顺序木聚糖酶预处理和碱性制浆可使卡伯值降低 0.31%至 4.84%。虽然超声处理的麦草的 Klason 木质素比未处理的麦草少 7.37%，但与单独的碱性制浆相比，顺序超声预处理和碱性制浆并不能显著降低卡伯值。此外，顺序木聚糖酶和超声预处理并不能显著降低卡伯值。与单独的碱性制浆和顺序木聚糖酶预处理及碱性制浆相比，超声辅助处理的纸浆总得率较低。
