Electronic Tongue Knows Beer Better Than You

An "electronic tongue" developed in Spain that can accurately distinguish between four styles of lager beer every time.

"It's just a bunch of wires and buttons and computers," said María Luz Rodríguez-Méndez, a professor of inorganic chemistry at University of Valladolid in Spain. "It's an ugly thing full of cables."

However it looks, Méndez and colleagues developed an electronic tongue that accurately distinguished between four styles of lager beer 100 percent of the time. A variety of screen-printed sensors "taste" electrochemical compounds in the beer to predict the brews' color index and alcoholic strength 76 percent and 86 percent of the time. The new robot taster contributes to a growing field of electronic tongue and nose development meant to improve quality control in the food industry.

The researchers taught the software to recognize the signal patterns for each of the four lager styles. Like our brain, the computer can then compare new beer samples against the established, learned signal patterns. They tested each of the 25 beer samples seven times.

Many existing tongues using an array of sensors only get one data point for each sensor, said Méndez.

"But we have curves for each sensor."

The non-specific electrodes are responsible for their wealth of data. The phenols and electrodes send electrochemical signals to the computer as they interact. The researchers immerse the electrodes in beer and track the electrochemical signals as they turn up the voltage, said Méndez. Each sensor makes distinct electrical patterns because each is made from a different material. After analyzing the data with two pattern-recognition models, the electronic tongue was able to place the commercial beer sample into the correct lager category with 100 percent accuracy. It also predicted the beer's color with 76 percent accuracy, and its alcohol content with 84 percent accuracy.

In his 1943 short story Robinc, Anthony Boucher describes a cooking robot that was able to (of course!) taste the food under preparation:

Half your time in cooking is wasted reaching around for what you need next. We can build in a lot of that stuff. For instance, one [mechanical] tentacle can be a registering thermometer...

And best of all - why the nuisance of bringing food to the mouth to taste? Install taste buds in the end of one tentacle. (Read more about Boucher's robot taste buds)

Via Science 2.0.

Scroll down for more stories in the same category. (Story submitted 5/22/2015)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Food ")

Mmm, Tasty Duck From A Petri Dish
'Laboratories in every city had produced synthetic food and meats, grown in large test tubes...' - David H. Keller, 1933.

Eden-ISS, Greenhouse In Antarctica
'With this kind of light we could get the gardens going again." - Barbara Humbly, 1983.

Pangorin Restaurant Service Robots
What'll you have? Jawa juice?

Chowbotics Salad Robot, Sally
'... gorgeous eating places where we were served entirely by mechanical apparatus.' - Edgar Rice Burroughs, 1912.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Orwell's Memory Hole Looms Larger Thanks To Nvidia
'All history was a palimpsest, scraped clean and reinscribed exactly as often as was necessary.'

Pipefish Robot Checks Pipes Cheap
Just like capsule endoscopy, but for bigger pipes. That go underground.

Nifty New SDS Space Debris Sensor For ISS
'Their radars... could easily pinpoint the debris of the early Space Age.'

NanoRacks Space Station Module Concept Validated
Space junk into space architecture.

Nuclear Drones Could Fly For Years
'I sent my eyes on their rounds and tended my gallery of one hundred-thirty changing pictures...'

SciFiQ Science Fiction Writing Aid
'Books were just a commodity that had to be produced, like jam or bootlaces.'

Robot Only Faster, Not Better, At Recycling
'Whenever a robot finds something it can't identify straight off... it puts whatever it is in the hopper outside your window.'

Poland Starts With 1000 Warmate 'Suicide Drones'
'Royal Security had told the pods to electrocute you or blast you into chum.'

Dream Of Building Your Own Rocket?
Fiorello Bodoni, you inspire all of us.

Zero Mass 'Vaporators' Pull Drinking Water From The Air
Did you think of Star Wars?

Elon Musk Fears A 'Fleet-Wide Hack' Of Autonomous Vehicles
'Khan grinned. 'It's alive! Bu-wahhahahah!''

China Melts Tibetan Permafrost To Plant Forest
'Can you give us a microwave spotlight?'

iFlytek Doctor Robot First To Pass Medical Exams
Doctor shortage? No problem, we'll just use the autodoc.

Slaughterbot AI KIller Quadcopter Drones
'The real border was defended by... a swarm of quasi-independent aerostats.'

Do We Really Want Backflipping Robots?
Also includes wonderful blooper reel.

RNA-Based Biocomputing Device
Living things can sense and analyze complex signals in living cells.

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.