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 |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
OK, NASA 3D Printer Of Food Not Yet Star Trek Food Synthesizer
Maybe not, but we're seeing definite progress.
BlueNalu Yellowtail Might Be Your First Lab-Grown Meat
Vat-grown nigiri sushi?
Beijing HaiDiLao Robotic Hotpot Restaurant Now Flavored By Artificial Intelligence
'Kantos Kan led me to one of these gorgeous eating places where we were served entirely by mechanical apparatus.' - Edgar Rice Burroughs, 1912.
Plants of the Future - What Should They Be Like
'He almost choked in his astonishment. Mashed potatoes and brown gravy!' - Robert Heinlein, 1941.
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.
SpaceX Requests Starlink For Starship
'... sweating, heat-blistered engineers at every interplanetary radiograph station on three planets.'
SF Writers Predicted John Deere Autonomous Tractors
'The huge plow... seemed to shake itself - and began to move back southward.'
DARPA Funding AI Fighter Pilots
'Cultured brains on a slab.'
StoryFile To Help William Shatner Become Landru
"I am Landru. I am he! All that he was, I am."
Telehealth Drones To The Rescue
'A shadow passed over him, and he looked up.'
Capture Asteroids In A Bag
'... just as a small boy catches a swift ball in his cap.'
Sony Pocket Air Conditioner Is Phil Dick's Idea!
'... he went to the hall closet to get his pith helmet and his mandatory cooling-unit.'
Is It Possible To GROW Planes And Vehicles?
'These are your rudimentary seed packages...'
Guard Dog Robot Security Check
'We still use people at the main gates, but here it's an automated sentry.'
Sheepskin Parchment Helped Medieval Lawyers Prevent Fraud
'The single sheet he held, and even the words and signatures upon it, were all integral parts of a single giant molecule...'
Space 'Hurricane' Has Been Seen
'... it was the biggest of the four hundred odd storms raging in the Fifty Suns region.'
PR2 Fencing Robot Perfect For Kwisatz Haderach-in-training
'Now, we'll work on your timing. Let me see you catch that thing sinister.'
Sole Morphing Astronaut Boots - A New Pair Of Moon Boots?
'It’s an ideal device for kangarooing along in lunar gravity.'
Mice Gestate In Mechanical Womb
'... in the Decanting Room, the newly-unbottled babes uttered their first yell of horror and amazement.'
3rd Century BC Gold Bee Is Just The Start
Bees knees, I order you to freeze!
Worlds With Underground Oceans More Conducive To Life
'There is life on Europa.'
More SF in the News Stories
More Beyond Technovelgy science news stories