Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving viable micro-organism
Reexamination Certificate
2004-11-05
2010-11-09
Weber, Jon P (Department: 1657)
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving viable micro-organism
C435S029000, C435S030000
Reexamination Certificate
active
07829305
ABSTRACT:
The invention is directed to a method for detecting the presence of biofilm-forming microorganisms in a paper or board making process for determining the need of an anti-biofilm agent in the process. The method comprises the steps: (a) subjecting a sampler device in the process line for a period of time to enable said microorganisms to form a biofilm in situ in said process on the surface of the sampler, (b) optionally treating said formed biofilm in a solution of a test anti-biofilm agent for a period of time, then (c) contacting said biofilm with a liquid growth medium in a recession of a culturing device for a period of time, and (d) removing the growth solution from the recession of said device and detecting qualitatively and/or quantitatively the presence or absence of a biofilm adhered on the walls of the recession. An assembly kit is also provided.
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Kolari, M. et al.; Journal of Industrial Microbiology & Biotechnology, (2003) 30; pp. 225-238.
Hatunen Terhi Johanna
Kolari Marko
Salkinoja-Salonen Mirja
Birch & Stewart Kolasch & Birch, LLP
Kemira Oyj
Singh Satyendra K
Weber Jon P
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