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Home NEWS Science News Biology

Mulling over the aromas of wine

Bioengineer by Bioengineer
July 12, 2017
in Biology
Reading Time: 2 mins read
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A fine wine has an ideal balance of ingredients. Too much or too little of a component could mean the difference between a wine with a sweet and fruity aroma and one that smells like wet newspaper. To help wineries avoid off-aromas, a team reports in ACS Sensors a sensitive device for detecting a compound that can affect the beverage's fragrance.

Acetaldehyde is frequently found in a lot of places and foods, such as fruits, vegetables and human saliva. When present in high amounts in wine, it produces an unpleasant odor and affects the fermentation process. Therefore, it is important for winemakers to monitor the acetaldehyde levels, which can vary with temperature, pH and oxygen concentrations. Current methods involve trained experts, long processing times and complex equipment. Kohji Mitsubayashi and colleagues propose a sensitive, versatile detector that is more selective than its predecessors.

The team tested for acetaldehyde in nine different wines, both red and white. The new detector produced results comparable to those obtained with traditional methods, but was simpler to operate and produced real-time results. The researchers say that the device could provide wineries with a more practical method for monitoring this make-or-break ingredient.

###

The authors acknowledge funding from the Japan Society for the Promotion of Science Grant-in-Aid for Scientific Research System, the Japan Science and Technology Agency and the Ministry of Education, Culture, Sports, Science and Technology Special Funds for Education and Research "Advanced Research Program in Neo-Biology."

The abstract that accompanies this study is available here.

The American Chemical Society, the world's largest scientific society, is a not-for-profit organization chartered by the U.S. Congress. ACS is a global leader in providing access to chemistry-related information and research through its multiple databases, peer-reviewed journals and scientific conferences. ACS does not conduct research, but publishes and publicizes peer-reviewed scientific studies. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact [email protected].

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