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KMID : 1094719970020020094
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Biotechnology and Bioprocess Engineering
1997 Volume.2 No. 2 p.94 ~ p.96
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Effects of surfactants on the enzymatic bleaching of kraft pulp by xylanase
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Ryu Keun-Garp
Kim Young-Gon
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Abstract
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A xylanase was purified from a commercial crude xylanase, Pulpzyme HC, and used for the bleaching of kraft pulp in the absence or in the presence of nonionic surfactants, Tween 20, Tween 80, and Igepal C930. The purified xylanase has a molecular weight of 23,500 as determined by a reducing SDS-PAGE. Tween 20 was most effective to enhance the efficiency of the enzymatic bleaching of kraft pulp by xylanase.
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KEYWORD
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kraft pulp, xylanase, bleaching, surfactants
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