Description of heterotrophic bacteria occurring in paper mills and paper products
| Autor: | Laura Raaska, Mirja Salkinoja-Salonen, Tiina Mattila-Sandholm, Hanna Sinkko, Laila Partanen, Maija-Liisa Suihko |
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| Rok vydání: | 2004 |
| Předmět: |
DNA
Bacterial Paper Bacilli Bacterial Toxins Colony Count Microbial Bacillus cereus Bacillus DNA Ribosomal Ribotyping Applied Microbiology and Biotechnology Microbiology Industrial Microbiology 03 medical and health sciences Paenibacillus pulp and paper industry Phylogeny 030304 developmental biology Bacillus (shape) automated ribotyping 0303 health sciences Bacteria biology Brevibacillus bacilli 030306 microbiology toxins food and beverages General Medicine biology.organism_classification 13. Climate action Proteobacteria thermophiles Biotechnology |
| Zdroj: | Suihko, M-L, Sinkko, H, Partanen, L, Mattila-Sandholm, T, Salkinoja-Salonen, M & Raaska, L 2004, ' Description of heterotrophic bacteria occurring in paper mills and paper products ', Journal of Applied Microbiology, vol. 97, no. 6, pp. 1228-1235 . https://doi.org/10.1111/j.1365-2672.2004.02416.x |
| ISSN: | 1365-2672 1364-5072 |
| Popis: | Aims: To isolate aerobic mesophilic bacilli and thermophilic bacteria from different paper mill samples and to evaluate their potential harmfulness. Methods and Results: A total of 109 mesophilic and 68 thermophilic isolates were purified and characterized by automated ribotyping and partial 16S rDNA sequencing. The mesophilic isolates belonged to the genera Bacillus (13 taxa), Brevibacillus (three taxa) and Paenibacillus (five taxa). The thermophilic bacteria represented seven taxa of Bacillus, Geobacillus or Paenibacillus, four of proteobacteria and one of actinobacteria. The most frequently occurring bacteria were Bacillus cereus, B. licheniformis, Pseudoxanthomonas taiwanensis and bacteria closely related to Paenibacillus stellifer, P. turicensis or Leptothrix sp. One mill was contaminated throughout with bacteria of a novel mesophilic genus most closely related to Brevibacillus centrosporus and another with bacteria of a novel thermophilic genus most closely related to Hydrogenophilus thermoluteolus. One B. cereus isolate producing haemolytic diarrhoeal enterotoxin was detected and all the tested B. licheniformis isolates produced a metabolite toxic to boar sperm cells. Conclusions: The bacilli and thermophilic bacteria isolated represent species which should not present occupational hazards in paper mill environments. The most harmful bacterium detected was B. licheniformis and potentially also B. cereus. Significance and Impact of the Study: Knowledge of the microbial diversity in a paper mill provides a rational basis for development of an effective controlling programme. A database constructed from the fingerprints generated using automated ribotyping helps to identify and trace the contamination routes of bacteria occurring in paper mills. |
| Databáze: | OpenAIRE |
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