Spain gets electronic 'tongue' to taste cava
Baku, August 3 (AZERTAC). Scientists in Spain say they have developed an electronic "tongue" that can identify different types of the Spanish sparkling wine cava -- a task more usually left to the skilled palate of the sommelier.
Using sensor systems and mathematical processes, the electronic tongue can currently distinguish between three types of cava -- brut nature, brut and medium dry -- researchers at the Universitat Autonoma de Barcelona say.
But they hope with proper training, it will soon be able to pick out all types of cava on the market, in the same way a human sommelier might, and quantify how much sugar each contains.
Cava, made in the same way as champagne, varies in sweetness according to the amount of the sugar added in the production process, with seven classifications ranging from Brut Nature to sweet.
The research team in Barcelona believes the electronic tongue could help identify problems during the process and aid quality control -- perhaps reducing the need for human tasters in cava-producing bodegas.
The scientists have aimed to reproduce human senses by developing biosensors to obtain chemical information and using computerized systems to interpret that data in the way the human brain and nerve system would.
The electronic tongue is not the first device to challenge the traditional role of the sommelier.
Scientists in France have in recent years developed an electronic "nose" which can pick up chemical signals to detect different types of wine and where they were made.
And researchers at the KTH Royal Institute of Technology in Sweden said last year that their electronic nose could be used by vineyards to tell the perfect moment to harvest grapes for maximum flavor, or to detect when an opened bottle of wine has gone bad.
Nonetheless, it seems unlikely human sommeliers will be out of a job in fine restaurants any time soon, since their skills tend also to include knowledge of wine regions, service, glasses -- and the all-important wine jargon.
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