NDLI: Quantitative contributions of bacteria and of Deinococcus geothermalis to deposits and slimes in paper industry

Content Provider	Springer Nature Link
Author	Peltola, Minna Kanto Öqvist, Charlotta Ekman, Jaakko Kosonen, Mirva Jokela, Sanna Kolari, Marko Korhonen, Päivi Salkija Salonen, Mirja
Copyright Year	2008
Abstract	Deinococcus geothermalis has frequently been isolated from pink colored deposits of paper industry processes. Laboratory studies have shown that D. geothermalis is capable of forming on nonliving surfaces patchy biofilms that are resistant to adverse agents such as extreme pH, desiccation, solubilising detergents and biocides. This study was done to quantitatively assess the role of D. geothermalis as a biofouler in paper industry. Colored deposits were collected from 24 European and North American paper and board machines and the densities of the bacterial 16S rRNA genes and those of the red slime producers D. geothermalis and Meiothermus spp. were measured by QPCR (quantitative real time PCR). D. geothermalis was found at nine machines, usually from splash area deposits, but its contribution was minor, 0.001–1%, to the total bacterial burden of 8.3 to log 10.5 log units per gram wet-weight of the deposits. When D. geothermalis was found in a measurable quantity, Meiothermus spp. also was found, often in bulk quantity (7–100% of the total bacteria). The data are in line with the properties of D. geothermalis known from laboratory biofilm studies, indicating this species is a pioneer coloniser of machine surfaces and may help other bacteria to adhere and grown into biofilms, rather than competing with them.
Starting Page	1651
Ending Page	1657
Page Count	7
File Format	PDF
ISSN	13675435
Journal	Journal of Industrial Microbiology and Biotechnology
Volume Number	35
Issue Number	12
e-ISSN	14765535
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-08-26
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Biofilm Deinococcus geothermalis Paper machine Biofouling Quantitative RT-PCR Microbiology Bioinformatics Biotechnology Genetic Engineering Inorganic Chemistry Biochemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Bioengineering Applied Microbiology and Biotechnology Biotechnology

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