<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>In order to evaluate the quality of red wine, measurement of the complex relative permittivity was conducted in the frequency range from 100 MHz to 40 GHz with a network analyzer. Results showed that the Cole-Cole plot of red wine consists of a semicircle at frequencies above 1 GHz and a straight line at frequencies below 1 GHz, which come from the dispersion properties for the water solution of alcohol and ingredients peculiar to red wine, respectively. Based on the Cole-Cole plots measured for seven kinds of red wines made from the same brand of Merlot in different production years, we estimated Debye dispersion parameters to reveal that the alcohol concentration and ingredient property can simultaneously be evaluated from the parameters for the semicircle and straight line, respectively.</p></abstract>

In order to evaluate the quality of red wine, measurement of the complex relative permittivity was conducted in the frequency range from 100 MHz to 40 GHz with a network analyzer. Results showed that the Cole-Cole plot of red wine consists of a semicircle at frequencies above 1 GHz and a straight line at frequencies below 1 GHz, which come from the dispersion properties for the water solution of alcohol and ingredients peculiar to red wine, respectively. Based on the Cole-Cole plots measured for seven kinds of red wines made from the same brand of Merlot in different production years, we estimated Debye dispersion parameters to reveal that the alcohol concentration and ingredient property can simultaneously be evaluated from the parameters for the semicircle and straight line, respectively.

Cole-Cole Measurement of Dispersion Properties for Quality Evaluation of Red Wine

Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, 466-8555, Nagoya, Japan

Measurement Science Review

In order to evaluate the quality of red wine, measurement of the complex relative permittivity was conducted in the frequency range from 100 MHz to 40 GHz with...

Cole-Cole Measurement of Dispersion Properties for Quality Evaluation of Red Wine

Pubblicato online: 06 nov 2009

Pagine: 113 - 116

DOI: https://doi.org/10.2478/v10048-009-0025-3

Parole chiave
Red wine, dispersion parameters, Cole-Cole plot, alcohol concentration, ingredients

This content is open access.

Cole-Cole Measurement of Dispersion Properties for Quality Evaluation of Red Wine

Pubblicato online: 06 nov 2009

Pagine: 113 - 116

DOI: https://doi.org/10.2478/v10048-009-0025-3

Parole chiaveRed wine, dispersion parameters, Cole-Cole plot, alcohol concentration, ingredients

This content is open access.

Parole chiave
Red wine, dispersion parameters, Cole-Cole plot, alcohol concentration, ingredients