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Holzforschung

International Journal of the Biology, Chemistry, Physics, and Technology of Wood

Editor-in-Chief: Faix, Oskar

Editorial Board Member: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Salmen, Lennart / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Burgert, Ingo / Rio, Jose C. / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Koch, Gerald / Lachenal, Dominique / Laine, Christiane / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Potthast, Antje / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Sipilä, Jussi / Takano, Toshiyuki / Tamminen, Tarja / Theliander, Hans / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi

12 Issues per year


IMPACT FACTOR 2016: 1.868
5-year IMPACT FACTOR: 1.875

CiteScore 2016: 1.83

SCImago Journal Rank (SJR) 2015: 0.817
Source Normalized Impact per Paper (SNIP) 2015: 0.954

Online
ISSN
1437-434X
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Volume 60, Issue 6 (Nov 2006)

Issues

Retention of Bacillus cereus and its toxin, cereulide, in cellulosic fibres

Douwe Hoornstra
  • Department of Applied Chemistry and Microbiology, Biocentre, University of Helsinki, Helsinki, Finland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Olof Dahlman / Elina Jääskeläinen
  • Department of Applied Chemistry and Microbiology, Biocentre, University of Helsinki, Helsinki, Finland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Maria A. Andersson
  • Department of Applied Chemistry and Microbiology, Biocentre, University of Helsinki, Helsinki, Finland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Assi Weber / Birgit Aurela / Henry Lindell / Mirja S. Salkinoja-Salonen
  • Department of Applied Chemistry and Microbiology, Biocentre, University of Helsinki, Helsinki, Finland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2006-12-04 | DOI: https://doi.org/10.1515/HF.2006.109

Abstract

Bacillus cereus is the only pathogen that is occasionally found in paper and paper products, but there is no information on its prevalence. The aim of this work was to obtain data for a risk assessment of B. cereus in cellulosic fibre-based products. Handsheets were formed using laboratory papermaking equipment from stocks admixed with B. cereus. Then the distribution of B. cereus and its heat-stable toxin, cereulide, between the fibre web and the wire filtrate was measured. The handsheets retained 5% of the vegetative cells and spores of B. cereus and 10–15% of the cereulide. Transfer of cereulide into food or drink through contact with paper was investigated using ethanol and hot and cold water as food and drink simulants. Less than 0.2% of the cereulide from handsheets was recovered from hot and cold water, as measured by LC/MS and the boar sperm bioassay. Total immersion in 95% v/v ethanol leached nearly all cereulide present in the paper. The results obtained with the bioassay were equivalent to those obtained by LC/MS for the leachates, indicating that cereulide retained its toxicity through the handsheet-making process. The results indicate that cereulide in pulps is probably also present in paper products made from them, but the concentration appears to be too low to be relevant in terms of toxicity.

Keywords: Bacillus cereus; cereulide; leachate; migration; papermaking; spore; toxin

About the article

Corresponding author. Department of Applied Chemistry and Microbiology, Biocentre, P.O. Box 56, University of Helsinki, 00014 Helsinki, Finland


Received: October 24, 2005

Accepted: August 16, 2006

Published Online: 2006-12-04

Published in Print: 2006-11-01


Citation Information: Holzforschung, ISSN (Online) 1437-434X, ISSN (Print) 0018-3830, DOI: https://doi.org/10.1515/HF.2006.109.

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