Molecular biology laboratory

As a result of our approach to continuous improvement, Aconsa has bolstered its testing capacity by launching a new Molecular Biology department. Here researchers carry out R+D and fine tune new rapid testing methods in an effort to minimise turnaround time.

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PCR Analysis

Polymerase chain reaction

At Aconsa we use PCR testing to amplify and analyse specific DNA sequences. This allows us to detect pathogenic micro-organisms reliably and quickly (Salmonella, Listeria, Legionella, E. coli, Staphylococcus aureus, Campylobacter).

Other molecular biology techniques for identifying pathogens

Micro-organisms transmitted through food or water constantly change as they adapt to different forms of stress. As a result, laboratories like Aconsa incorporate state-of-the-art molecular methods that help to detect pathogens.


This technique finds the distinctive DNA imprint left by pathogens like Salmonella, Listeria or E. coli, among others, to identify the bacterial strain responsible for outbreaks of foodborne diseases. Because it is reliable and efficient, researchers are able to determine the source of an outbreak or related event at an affordable cost.


Thanks to proteomics — which comprises different sophisticated analysis techniques that go beyond DNA — peptides and proteins can be identified and quantified to verify species, adulterations and traceability in food; identify micro-organisms and decay markers, such as Listeria or Salmonella, among many others; and detect allergy-causing proteins.

Some applications of molecular biology in our laboratory

Environmental analysis

The molecular biology techniques employed by our professionals alongside our laboratory’s technological capabilities allow us to carry out the laborious process of detecting concentrations of viable legionella cells in cooling towers, as well as in the surface water of lakes, rivers, ponds and hot springs.

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Food analysis

Thanks to molecular biology we can detect the presence of bacteria such as Salmonella, Listeria or E. coli in food products and other emerging pathogens such as Campylobacter. These techniques offer a substantial advancement in the prevention and management of food-related risks.

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Water analysis

There are micro-organisms present in drinking, recreational and bathing waters, among others, which can negatively affect health. Such is the case of faecal matter filtered through a spring, or Enterococcus intestinalis in bathing water at the beach. Fortunately, these can be identified thanks to microbiology.

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Do you need a specific environmental, food or water laboratory testing service?

Aconsa is a chemical and microbiological laboratory certified by the ENAC to perform analysis and controls in the food, industrial and health fields, among others.

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