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Title of Journal: Biotechnol Lett

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Abbravation: Biotechnology Letters

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Springer Netherlands

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DOI

10.1002/recl.18830020402

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1573-6776

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Endoglucanase enzymatic modification of kraft pulp

Authors: Tao Deng Liuliu Lu Shipeng Gao Ying Lin Shuangyan Han
Publish Date: 2016/04/08
Volume: 38, Issue: 7, Pages: 1139-1145
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Abstract

Pichia pastoris expressing endoglucanase EG1 was grown in a 10 l fermenter yielding a high carboxymethyl cellulase CMCase activity of 340 U mg−1 EG1mediated modification of kraft pulp resulted in a paper sheet with the tensile index and burst index increased by 10 and 65  respectively The kink index indicating abrupt bends in fibres of the enzymetreated group decreased sharply by 45  after the first recycling compared with a reduction of only 1  in the control group Furthermore EG1 treatment decreased the growth of crystallinity from 735 to 732  and crystal size from 745 to 721 nm which alleviated paper aging

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