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December 2007
Electronic Nose Evaluation of Grape Maturity
Study demonstrates why a conducting, polymer-based electronic nose may be an objective tool for evaluating grape maturity, according to authors.
by Bruce W. Zoecklein*, Ahmad I. Athamneh and Kumar Mallikarjunan
WBM Senior Technical Editor's note:? Winemakers know that the most usual metrics we use for grape ripening--Brix, pH, TA, color, etc.--don't predict wine quality. Zoecklein et alia contend that measuring the volatile compounds in grapes, a fancy way of saying grape aroma, is better at predicting final wine quality. As the authors note, the so-called "electronic nose" is a reliable, simple and objective way of determining fruit maturity. ...
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