Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 343455
Title Structural Characterisation and Enzymatic Degradation of Exopolysaccharides involved in Paper Mill Slime deposition
Author(s) Verhoef, R.P.
Source Wageningen University. Promotor(en): Fons Voragen, co-promotor(en): Henk Schols. - Wageningen : Wageningen University - ISBN 9789085041412 - 154
Department(s) Food Chemistry
Publication type Dissertation, internally prepared
Publication year 2005
Keyword(s) polysacchariden - enzymen - degradatie - pulp- en papierwarenindustrie - bacteriën - bacteriële producten - chemische structuur - biofilms - polysaccharides - enzymes - degradation - pulp and paper industry - bacteria - bacterial products - chemical structure - biofilms
Categories Paper
Abstract Bacteria that adhere to the surface of a paper machine form a biofilm that entraps the fibres and additives used as raw material to form a slime deposit. The formation of these slime deposits can result in serious problems with respect to the papermaking process itself and the end product. Traditionally more or less toxic biocides are used to prevent this problem. However, due to more strict environmental legislation there is growing interest in alternative methods for slime control. One of these methods could be the use of enzymes that degrade the exopolysaccharides (EPSs) that form the major structural element of a biofilm. To obtain these enzymes it is important to know which EPSs to target for enzymatic degradation. Therefore the EPSs produced by several species isolated from different paper mills within Spain, Finland or France were subjected to a (detailed) chemical structure elucidation. From these studies several EPSs were selected as target substrates for enzymatic degradation. The enzyme able to degrade one of these substrates was subjected to purification and characterisation studies.
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