Characterization of a Family GH5 Xylanase with Activity on Neutral Oligosaccharides and Evaluation as a Pulp Bleaching Aid | Zendy

Óscar Gallardo | Zendy; María Fernández Fernández | Zendy; Cristina Valls | Zendy; Susana V. Valenzuela | Zendy; M. Blanca Roncero | Zendy; Teresa Vidal | Zendy; Pilar Dı́az | Zendy; F. I. Javier Pastor | Zendy

Open Access

Characterization of a Family GH5 Xylanase with Activity on Neutral Oligosaccharides and Evaluation as a Pulp Bleaching Aid

Author(s) -

Óscar Gallardo,

María Fernández Fernández,

Cristina Valls,

Susana V. Valenzuela,

M. Blanca Roncero,

Teresa Vidal,

Pilar Dı́az,

F. I. Javier Pastor

Publication year - 2010

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.00871-10

Subject(s) - xylanase , kraft process , chemistry , pulp (tooth) , kraft paper , glycosyl , enzyme , food science , biochemistry , organic chemistry , pulp and paper industry , medicine , pathology , engineering

A new bacterial xylanase belonging to family 5 of glycosyl hydrolases was identified and characterized. The xylanase, Xyn5B fromBacillus sp. strain BP-7, was active on neutral, nonsubstituted xylooligosaccharides, showing a clear difference from other GH5 xylanases characterized to date that show a requirement for methyl-glucuronic acid side chains for catalysis. The enzyme was evaluated onEucalyptus kraft pulp, showing its effectiveness as a bleaching aid.

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