Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

FISH probing applied to biofilm control in the paper industry

16.04.2008
A research team from the Universidad Complutense has developed a new microorganism identification technique that allows for a rapid detection of the most problematic bacteria for the paper industry.

A great majority of the paper factories, specially those producing recycled paper, suffer from biofouling in their installations. Such phenomena are caused by certain bacteria that form colonies. These microorganisms have the capacity to excrete diferent polysacharids that form a protective and adhesive matrix (biofilm) that allows the bacteria to attach to the surface of pipes, tanks and other equipment.

Once the initial attachment of the biofilm takes place, organic matter and other bacteria that lack the capacity to form a biofilm can anchor themselves to the formed colony. Biofilms can evolve into hardened crusts and create incrustations that are very hard to eliminate or can progressively free themselves from the original attachment site hindering both the process as well as the quality of the produced paper.

Traditionally, to avoid the formation of biofilms, wide spectrum biocides were used at different points through the process. Nevertheless, the toxicity of such agents, along with the development of resistance by some microorganisms, has forced the industry to seek new alternative treatments based on enzymes or biodispersants that have less environmental impact and are more specific in their action, affecting principally those species that are the main cause of the problems. In the paper industry, the main species of bacteria with capacity to form biofilms belong to the genus Enterobacter; the most common ones being Pantoea agglomerans, Enterobacter sp., Raoultella y Klebsiella sp.

... more about:
»Biofilm »microorganism

The cellulose and paper research group from the department of chemical engineering, working in collaboration with the department of microbiology (animal health) biochemistry and molecular biology at the Universidad Complutense, have developed and patented a new method to detect these bacterial species in the paper industry by means of a probe based on “in situ” hybridization (that does not require biofilms to be cultured) and fluorescent markers (FISH). This method is based on the selective reacction of a molecular marker designed to react by attaching to the specific DNA of a particular mircroorganism. Once attached, part of the marker molecule called fluorophor activates and produces fluorescence. By taking a microscopic image of the medium in wich the reaction takes place and procesing it digitally, it is posible to carry out reliable counting of the number of bacteria of each type that are present per unit volume of the sample. In this way, by knowing the bacterial species present in the installations and the concentration, antimicrobial treatments can be tailored for the detected flora and can be done so with a better adjusted dosage. The aplication of this technique in the paper industry would generate a reduction of the costs of maintaining the installations and greatly reduce the enviromental impact associated with the treatments that use biocides.

Recomended links
http://www.springerlink.com/content/100457/?Content+Status=Accepted&sort=p_OnlineDate&sortorder=desc&v=expanded&o=40

Área de Cultura Científica | alfa
Further information:
http://www.ucm.es

Further reports about: Biofilm microorganism

More articles from Life Sciences:

nachricht How brains surrender to sleep
23.06.2017 | IMP - Forschungsinstitut für Molekulare Pathologie GmbH

nachricht A new technique isolates neuronal activity during memory consolidation
22.06.2017 | Spanish National Research Council (CSIC)

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>