Navigation Links
How strong is your booze?
Date:3/22/2010

Both legitimate brewers and distillers - and authorities on the track of illicit alcohol from home stills - will soon have a helping hand. Measurement experts have unveiled a portable device to determine the strength of alcoholic drinks quickly and easily, almost anywhere. Published in the open access Chemistry Central Journal, the researchers show that their technique is just as accurate, and more sophisticated, than widely used lab-based methods.

Along with his colleagues, Dirk Lachenmeier of testing agency Chemisches und Veterinruntersuchungsamt (CVUA) in Karlsruhe, Germany, decided to use a simple, patented multiple-beam infrared sensor combined with a flow-through cell for automated alcohol analysis. His team tested the device, which is portable to allow for on-site measurements, on a range of alcoholic samples.

Their tests on 260 different alcoholic drinks showed that the flow-through infrared device was much easier to handle than typical reference procedures, while time-consuming sample preparation steps such as distillation weren't necessary. Their sensor was equal to or better than current densimetric or Fourier transform infrared (FTIR) methods: repeatability, as determined in six different wine samples, was 0.05% vol and the relative standard deviation was below 0.2%. They also tested wines partway through the fermentation process, and unrecorded (non-commercial or illicit) alcohol samples, with good results. The test took less than a minute per drink.

"The device gives the opportunity for mobile on-site control in the context of labeling control of wine, beer and spirits, the process monitoring of fermentations, or the evaluation of unrecorded alcohols," says Lachenmeier. He adds that the device can also be used easily in developing country settings, with results that compare well to a more sophisticated lab set up.

Only beers and other sparkling drinks need more time-consuming preparation, to first remove the fizz, which can interfere with measurements.

The authors say that not only does unrecorded alcohol account for a quarter of all alcohol consumed worldwide, but in most cases, "not even the most basic chemical composition such as alcoholic strength is known for these beverages."

Ever since French chemist Gay-Lussac's work on alcohol-water mixtures, scientists have measured alcoholic strength by volume (% vol) using distillation and then a pycnometer to measure the liquid's density. Infrared spectroscopy is a more recent, popular method, but typically requires expensive equipment, and complicated calibration.


'/>"/>

Contact: Charlotte Webber
charlotte.webber@biomedcentral.com
44-203-192-2129
BioMed Central
Source:Eurekalert

Related biology technology :

1. STALLERGENES : Strong Business Growth: +17% and Earnings Per Share up 30%
2. Dawson James Securities Initiates Research Coverage on CryoCor, Inc. (Nasdaq: CRYO) with a Strong Buy Rating and $6.00 Target Price
3. Strong Demand Pushes up Both Prices and Sales Volumes for Dragons Main Products
4. U-M research: New plastic is strong as steel, transparent
5. Nobel Award in Medicine Holds Strong Messsage for Animal Activists
6. Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results
7. Gen-Probe Reports Strong Financial Results for Third Quarter 2007, Raises Full-Year Guidance for Earnings Per Share and Total Revenues
8. Cephalon Announces Strong Third Quarter Financial Results
9. Edwards Lifesciences Forecasts Strong Growth in 2008
10. Genoptix Reports Strong Financial Results For Third Quarter 2007
11. STALLERGENES: 2007: A Further Year of Strong Growth: Up 16%
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... 2016  Alex,s Lemonade Stand Foundation (ALSF), a leading ... open a state-of-the-art bioinformatics lab, using ,big data, to ... comes as Liz Scott , co-executive director of ... Summit in Washington, D.C. , hosted ... and advocate of pediatric cancer research and awareness. ...
(Date:6/27/2016)... CLEVELAND , June 27, 2016  Global ... average 4.6 percent through 2020 to $7.2 billion.  ... (food and beverages, cleaning products, biofuel production, animal ... and biotechnology, diagnostics, and biocatalysts). Food and beverages ... gains driven by increasing consumption of products containing ...
(Date:6/27/2016)... GUELPH, ON , June 27, 2016 /PRNewswire/ - BIOREM ... it has been advised by its major shareholders, Clean ... LP, United States based venture ... common shares of Biorem (on a fully diluted, as ... for the disposition of their entire equity holdings in ...
(Date:6/27/2016)... DIEGO , June 27, 2016  Sequenom, Inc. ... committed to enabling healthier lives through the development of ... Court of the United States ... courts that the claims of Sequenom,s U.S. Patent No. ... patent eligibility criteria established by the Supreme Court,s Mayo ...
Breaking Biology Technology:
(Date:6/27/2016)... DUBLIN , June 27, 2016 Research ... in North America 2016-2020" report to their offering. ... North America to grow at a CAGR ... has been prepared based on an in-depth market analysis with inputs ... growth prospects over the coming years. The report also includes a ...
(Date:6/22/2016)... BETHESDA, Md. , June 22, 2016  The American ... by Trade Show Executive Magazine as one of ... Summit on May 25-27 at the Bellagio in ... based on the highest percentage of growth in each of ... number of exhibiting companies and number of attendees. The 2015 ...
(Date:6/22/2016)... LOS ANGELES , June 22, 2016 ... of identity management and verification solutions, has ... cutting edge software solutions for Visitor Management, ... ® provides products that add functional ... The partnership provides corporations and venues with ...
Breaking Biology News(10 mins):