AI Article Synopsis
- The research investigates how colored biofilms, particularly from the genus Meiothermus, impact the paper industry by analyzing samples from 24 different machines in four countries.
- Using real-time PCR, the study quantified Meiothermus presence in process deposits, revealing a significant range from 10,000 to 100 billion gene copies per gram of deposit.
- It was found that Meiothermus spp. contribute to product defects, as they were common in paper and board products with color issues, with Meiothermus silvanus and M. ruber being the most frequently identified species.
Article Abstract
Colored biofilms cause problems in paper industry. In this work we used real-time PCR to detect and to quantitate members of the genus Meiothermus from the process samples and end products from 24 machines manufacturing pulp, paper and board in four countries. The results obtained from 200 samples showed the importance of members of the genus Meiothermus as ubiquitous biofoulers in paper machines. This genus was the dominant biofouler in some mills. From < or =10(4) to 10(11) copies of Meiothermus 16S rRNA genes were found per gram of process deposit (wet weight). Meiothermus spp. were found in paper and board products with colored defects and connection between deposit-forming microbes and end-product spots was shown. 16S rRNA gene sequences of 29 biofilm producing bacterial isolates from different mills were determined. Based on sequence data, 25 of the isolates were assigned to the genus Meiothermus, with Meiothermus silvanus and M. ruber as the most frequent species.
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| http://dx.doi.org/10.1007/s10295-006-0187-z | DOI Listing |
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