$Determination of Alcohol and Extract Concentration in Beer Samples Using a Combined Method of Near-Infrared (NIR) Spectroscopy and Refractometry$

Determination of Alcohol and Extract Concentration in Beer Samples Using a Combined Method of Near-Infrared (NIR) Spectroscopy and Refractometry

A new approach of combination of near-infrared (NIR) spectroscopy and refractometry was developed in this work to determine the concentration of alcohol and real extract in various beer samples. A partial least-squares (PLS) regression, as multivariate calibration method, was used to evaluate the co...

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Veröffentlicht in:	Journal of agricultural and food chemistry 2010-12, Vol.58 (24), p.12634-12641
Hauptverfasser:	Castritius, Stefan, Kron, Alexander, Schäfer, Thomas, Rädle, Matthias, Harms, Diedrich
Format:	Artikel
Sprache:	eng
Schlagworte:	alcohols Analytical Methods Beer - analysis Beers Biological and medical sciences calibration Ethanol - analysis Fermented food industries food analysis food composition Food industries food quality Fundamental and applied biological sciences. Psychology near-infrared spectroscopy new methods nondestructive methods real extract refractometry Refractometry - methods Spectroscopy, Near-Infrared - methods sugars wort (brewing)
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