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Sunlight destroys antibiotic in marine aquaculture waters - Research from Department of Chemistry and CESAM

Sunlight destroys antibiotic in marine aquaculture waters - Research from Department of Chemistry and CESAM

21/04/2016

It is called oxytetracycline (OTC) and is one of the antibiotics used in aquaculture to combat a wide variety of infections in fish. If until now the respective removal is made using the diffusion of ozone in the water - an expensive method, inefficient and hazardous compounds generator to health when it comes to saltwater - a team of researchers from UA found that, alternatively, the antibiotic can be effectively destroyed with a simple and free resource: sunlight.

The use of antibiotics in national aquaculture has been decreasing in recent years (OTC is one of the few antibiotics authorized in the country for use in aquaculture), and producers are increasingly opting for preventive measures such as vaccination. However, throughout the world there are countries where the use of antibiotics is not as upper and controlled, which, according to the researchers, "increases the potential application of the method" proposed by UA.

The work was conducted by PhD student Joanna Leal, under the supervision of Valdemar Esteves and Eduarda Santos, and published in the latest issue of Environmental Pollution, a publication of Elsevier which is a world reference in the field of chemistry applied.

More information: http://uaonline.ua.pt/pub/detail.asp?lg=pt&c=46118

 

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