Patent ID: 7829305

Claim:
A method for determining the effectiveness of anti-biofilm agents in a paper-making or board-making process line, said process comprising: (a) inserting a sampler device in the process line for a period of time to enable microorganisms to form a biofilm in situ on the surface of the sampler, (b) treating the surface of the sampler with said formed biofilm thereon in a solution of a test anti-biofilm agent in a treatment device for a period of time, then (c) contacting the surface of the sampler with said biofilm thereon with a liquid growth medium in a recession of a culturing device for a period of time, then (d) removing the growth medium and the surface of the sampler from the recession of said culturing device and detecting qualitatively and/or quantitatively the presence or absence of biofilm-forming microorganisms adhered on the walls of the recession.