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Xylanase and Ultrasound Assisted Pulping of Wheat Straw

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Abstract

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.

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Authors and Affiliations

  1. Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai, 400 019, India

    Bhavin S. Dedhia & Virendra K. Rathod

  2. Institute of Wood and Paper Technology, University of West Hungary, P.O. Box. 132, Bajcsy Zs. E. u. 4., 9400, Sopron, Hungary

    Levente Csoka

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  1. Bhavin S. Dedhia
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  2. Levente Csoka
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  3. Virendra K. Rathod
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Correspondence to Virendra K. Rathod.

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Dedhia, B.S., Csoka, L. & Rathod, V.K. Xylanase and Ultrasound Assisted Pulping of Wheat Straw. Appl Biochem Biotechnol 168, 731–741 (2012). https://doi.org/10.1007/s12010-012-9813-6

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  • DOI: https://doi.org/10.1007/s12010-012-9813-6

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