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Effect on Xylanase from Leveking in Bleaching Soda-AQ Pulp of Fast-Growing Poplar

Xing Xiang Ji, Jia Chuan Chen, Gui Hua Yang, Jia Fu Wang, Lu Yan Wang

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Abstract

The xylanase from Leveking was used in the experiment of bleached Soda-AQ pulp of fast-growing poplar. The suitable conditions of the xylanase from Leveking were obtained in the pretreatment of the Soda-AQ pulp of fast-growing poplar that temperature was 58°C, pH was 8.5, time was 120min and the dosage of the xylanase was 8IU/g. The pulp brightness was increased by 3.7%ISO when compared XDPQ and DPQ bleaching pulp under identical conditions. The pulp brightness was increased by 4.1%ISO when compared XDED and DED bleaching pulp under identical conditions. The untreated and pretreated Soda-AQ pulp of fast-growing poplar by the xylanase of two-dimensional and three dimensional figure of fiber surface under AFM were analyzed to explain the xylanase effect in the pulp bleaching theoretically.

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What this paper is about

The xylanase from Leveking was used in the experiment of bleached Soda-AQ pulp of fast-growing poplar. The suitable conditions of the xylanase from Leveking were obtained in the pretreatment of the Soda-AQ pulp of fast-growing poplar that temperature was 58°C, pH was 8.5, time was 120min and the dosage of the xylanase was 8IU/g. The pulp brightness was increased by 3.7%ISO when compared XDPQ and DPQ bleaching pulp under identical conditions. The pulp brightness was increased by 4.1%ISO when compared XDED and DED bleaching pulp under identical conditions. The untreated and pretreated Soda-AQ pulp of fast-growing poplar by the xylanase of two-dimensional and three dimensional figure of fiber surface under AFM were analyzed to explain the xylanase effect in the pulp bleaching theoretically.

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Available abstract

The xylanase from Leveking was used in the experiment of bleached Soda-AQ pulp of fast-growing poplar. The suitable conditions of the xylanase from Leveking were obtained in the pretreatment of the Soda-AQ pulp of fast-growing poplar that temperature was 58°C, pH was 8.5, time was 120min and the dosage of the xylanase was 8IU/g. The pulp brightness was increased by 3.7%ISO when compared XDPQ and DPQ bleaching pulp under identical conditions. The pulp brightness was increased by 4.1%ISO when compared XDED and DED bleaching pulp under identical conditions. The untreated and pretreated Soda-AQ pulp of fast-growing poplar by the xylanase of two-dimensional and three dimensional figure of fiber surface under AFM were analyzed to explain the xylanase effect in the pulp bleaching theoretically.

Key concepts: Xylanase, Pulp (tooth), Pulp and paper industry, Chemistry, Kappa number, Kraft process, Biochemistry, Dentistry

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Effect on Xylanase from Leveking in Bleaching Soda-AQ Pulp of Fast-Growing Poplar — Research Paper | ScholarLens