A sensor developed by a team of analytical chemists of the Voronezh Technological Academy allows you to determine the quality of meat, to learn whether it is fresh, and how long it has been kept. Researchers headed by Professor Yakov Korenman and Tatiana Kuchmenko, Doctor of Science (Chemistry), have produced a sensor which helps to quickly and accurately analyse the scent of meat; to identify the adipose and muscular tissue oxidation products through the piesoelectric microweighing method.
The fact that meat stored in freezers deteriorates over time is well-known. This happens among other things due to interaction of meat tissues with atmospheric oxygen – the tissues get oxidized. But this is difficult to determine by smell, and most importantly, a qualitative indicator not a quantitative one is required. A device is needed, which (in contrast to the nose of an average statistical person) is impossible to deceive by masking odours, for example – by spices. This particular effective, keen and selective device has been developed by the chemists.
The authors suggest that the smell of meat, or more precisely – the gas phase above the meat surface – should be analyzed simultaneously with the help of several so-called electrodes. These are quartz plates, on the surface of which thin films of various substances are applied to efficiently catch the “smell components” – molecules evaporating from the surface of meat. As these molecules are rather diverse, there are several electrodes involved, each of them being covered with its own coating. As for the coatings, the researchers have tried all kinds of compounds, including even beeswax.
Sergey Komarov | alfa
NIH scientists describe potential antibody treatment for multidrug-resistant K. pneumoniae
14.03.2018 | NIH/National Institute of Allergy and Infectious Diseases
Researchers identify key step in viral replication
13.03.2018 | University of Pittsburgh Schools of the Health Sciences
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...
The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...
At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.
When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...
At the ILA Berlin, hall 4, booth 202, Fraunhofer FHR will present two radar sensors for navigation support of drones. The sensors are valuable components in the implementation of autonomous flying drones: they function as obstacle detectors to prevent collisions. Radar sensors also operate reliably in restricted visibility, e.g. in foggy or dusty conditions. Due to their ability to measure distances with high precision, the radar sensors can also be used as altimeters when other sources of information such as barometers or GPS are not available or cannot operate optimally.
Drones play an increasingly important role in the area of logistics and services. Well-known logistic companies place great hope in these compact, aerial...
16.03.2018 | Event News
13.03.2018 | Event News
08.03.2018 | Event News
16.03.2018 | Earth Sciences
16.03.2018 | Physics and Astronomy
16.03.2018 | Life Sciences