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Fish have a 'fingerprint' that reveals where they came from, study shows; understand

Mullet Conservation International/Átila Ximenes Fish also have fingerprints. This is what research by the Brazilian Agricultural Research Corporation (Embrapa) showed, carried out with the Brazilian mullet. The researchers analyzed small...

Fish have a 'fingerprint' that reveals where they came from, study shows; understand
365 Summary

The combination of these substances works like a "chemical fingerprint". Send it to g1 The study was able to differentiate mullets caught in three locations in Brazil.

  • The researchers found differences in the composition of the muscles related to the environment in which the fish live, the amount of salt in the water, their diet and the functioning of the...
  • Scientists have also identified 23 natural chemical compounds in mullet muscle.

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Mullet Conservation International/Átila Ximenes Fish also have fingerprints. This is what research by the Brazilian Agricultural Research Corporation (Embrapa) showed, carried out with the Brazilian mullet. The researchers analyzed small molecules present in the mullet's muscle to identify where the fish came from. The combination of these substances works like a "chemical fingerprint". ??Do you have any reporting suggestions? Send it to g1 The study was able to differentiate mullets caught in three locations in Brazil. The researchers found differences in the composition of the muscles related to the environment in which the fish live, the amount of salt in the water, their diet and the functioning of the organism. Scientists have also identified 23 natural chemical compounds in mullet muscle. These substances help to show how the fish organism works, including information about energy expenditure, muscular activity, feeding and adaptation to the environment.

To carry out the analysis, the researchers used a technique similar to a "chemical X-ray": Hydrogen Nuclear Magnetic Resonance. The method allows mapping the position of hydrogen atoms present in molecules. The technique was associated with metabolomics, which allows the analysis of small molecules produced by the body during everyday chemical reactions. The study was developed by researchers Fabíola Fogaça, from Embrapa Agroindústria de Alimentos (RJ), and Luiz Colnago, from Embrapa Instrumentação (SP). Fabíola Fogaça inserting the mullet into the "chemical x-ray" Disclosure/ Embrapa Read also: Could the heat wave in Spain lead to an increase in the price of olive oil? Use in practice The discovery can help the fishing sector and the creation of mechanisms to certify the origin of fish. According to scientists, the technology can help combat fraud in the fish market, such as replacing one species with another and falsifying the origin of the product. Furthermore, chemical fingerprinting can be used as a technical basis for requesting a Geographical Indication (GI), in the Denomination of Origin modality, for mullet from Lagoa de Araruama. Araruama Lagoon is located in Rio de Janeiro and is considered the largest lagoon with a permanent concentration of salts in the world. The water has an average salinity of 52%, higher than that of the sea. This characteristic directly influences the metabolism of mullets that live in the region. Find out also: Crisis in the countryside: requests for judicial recovery surge among rural producers After foie gras, which animal breeding and slaughtering practices can be prohibited? Where does what I eat come from: tilapia