Featured Research

from universities, journals, and other organizations

New 'electronic tongue' system assesses the antioxidant power of juices and fruit

Date:
July 20, 2011
Source:
Asociación RUVID
Summary:
Researchers in Spain have developed a new electronic tongue system that can be applied to the analysis of the antioxidant power and other quality parameters of juices, fruit and fruit purées.

The new system allows the industry to find the concentration of antioxidants in a particular product .
Credit: Image courtesy of Asociación RUVID

Researchers at the Centre for Molecular Recognition and Technological Development (IDM) and the CUINA group of the Universitat Politècnica de València (Spain) have developed a new electronic tongue system that can be applied to the analysis of the antioxidant power and other quality parameters of juices, fruit and fruit purées.

According to the UPV researchers, in recent years, electronic tongues have become an excellent alternative to traditional methods of analysis for controlling the quality of food products. "Electronic tongues, using electrochemical techniques, help us to sort food samples in situ and to quantify their physicochemical parameters, in a fast and economical way," said Ramón Martínez Máñez, a researcher at the UPV IDM.

The electronic tongue system designed by UPV researchers is based on techniques of voltammetry and impedance spectroscopy, and consists of a PC application and some electronic measuring equipment. In addition, the software that they have developed allows not only to perform tests but to store the data corresponding to the measurements obtained as well.

So far, UPV experts have tested the usefulness of this system in different antioxidant solutions -specifically, citric acid, ascorbic acid (vitamin C) and malic acid, and binary mixtures of those-, and the results have been highly satisfactory.

"What we do is, we apply electrical signals to the solution and we measure its response. Thus we can quantify the antioxidant concentration in that solution," said Miguel Alcañiz, IDM researcher at the Universitat Politècnica de València.

Now, researchers at the IDM and the Group of CUINA Politècnica de València are working on the study of the degradation of vitamin C in juices. "We're starting to work very soon in the direct application of the electronic tongue to the evaluation of orange juice," said José Manuel Barat, a researcher at the UPV's CUINA group.

UPV researchers have also studied the application at the laboratory of this electronic tongue system to the detection of glyphosate, a weedkiller which is widely used in agriculture, and to monitoring water quality in sewage treatment plants.

This system has been presented within the framework of the V Workshop on Sensors and Molecular Recognition, organized by IDM, which took place recently at the UPV's School of Agricultural Engineering and Environment.


Story Source:

The above story is based on materials provided by Asociación RUVID. Note: Materials may be edited for content and length.


Cite This Page:

Asociación RUVID. "New 'electronic tongue' system assesses the antioxidant power of juices and fruit." ScienceDaily. ScienceDaily, 20 July 2011. <www.sciencedaily.com/releases/2011/07/110719072703.htm>.
Asociación RUVID. (2011, July 20). New 'electronic tongue' system assesses the antioxidant power of juices and fruit. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2011/07/110719072703.htm
Asociación RUVID. "New 'electronic tongue' system assesses the antioxidant power of juices and fruit." ScienceDaily. www.sciencedaily.com/releases/2011/07/110719072703.htm (accessed October 1, 2014).

Share This



More Matter & Energy News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Japan Looks To Faster Future As Bullet Train Turns 50

Japan Looks To Faster Future As Bullet Train Turns 50

Newsy (Oct. 1, 2014) — Japan's bullet train turns 50 Wednesday. Here's a look at how it's changed over half a century — and the changes it's inspired globally. Video provided by Newsy
Powered by NewsLook.com
US Police Put Body Cameras to the Test

US Police Put Body Cameras to the Test

AFP (Oct. 1, 2014) — Police body cameras are gradually being rolled out across the US, with interest surging after the fatal police shooting in August of an unarmed black teenager. Duration: 02:18 Video provided by AFP
Powered by NewsLook.com
Raw: Japan Celebrates 'bullet Train' Anniversary

Raw: Japan Celebrates 'bullet Train' Anniversary

AP (Oct. 1, 2014) — A ceremony marking 50 years since Japan launched its Shinkansen bullet train was held on Wednesday in Tokyo. The latest model can travel from Tokyo to Osaka, a distance of 319 miles, in two hours and 25 minutes. (Oct. 1) Video provided by AP
Powered by NewsLook.com
Robotic Hair Restoration

Robotic Hair Restoration

Ivanhoe (Oct. 1, 2014) — A new robotic procedure is changing the way we transplant hair. The ARTAS robot leaves no linear scarring and provides more natural results. Video provided by Ivanhoe
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins