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Dielectric properties of grapes at 2.45 GHz were measured at moisture contents varying from 80 to 15% (wet basis) at temperatures ranging from 25-80 degrees C using the Open Ended Coaxial Transmission Line Technique. Both dielectric constant and loss factor decreased with decreasing moisture content. In low moisture samples these properties were found to be considerably influenced by higher temperatures. Dielectric properties of sugar solutions of varying concentrations (20-250% by weight in water) were also determined at different temperatures, and these values were compared to those of grapes of corresponding moisture concentration. Predictive models of the dieletric properties as functions of moisture content and temperature were generated using response surface methodology. The results are useful in estimating the volumetric heating of grapes by microwave energy, and these methods can be extended to sugar-based foods in general.
T N Tulasidas, and
G S Raghavan, and
F van de Voort, and
R Girard
January 2000,
The Journal of microwave power and electromagnetic energy : a publication of the International Microwave Power Institute,
T N Tulasidas, and
G S Raghavan, and
F van de Voort, and
R Girard
April 2012,
Physics in medicine and biology,
T N Tulasidas, and
G S Raghavan, and
F van de Voort, and
R Girard
January 2011,
The Journal of microwave power and electromagnetic energy : a publication of the International Microwave Power Institute,
T N Tulasidas, and
G S Raghavan, and
F van de Voort, and
R Girard
April 2020,
RSC advances,
T N Tulasidas, and
G S Raghavan, and
F van de Voort, and
R Girard
May 2020,
RSC advances,
T N Tulasidas, and
G S Raghavan, and
F van de Voort, and
R Girard
August 2021,
Materials (Basel, Switzerland),
T N Tulasidas, and
G S Raghavan, and
F van de Voort, and
R Girard
October 2010,
Bioelectrochemistry (Amsterdam, Netherlands),
T N Tulasidas, and
G S Raghavan, and
F van de Voort, and
R Girard
June 2007,
Pathologie-biologie,
T N Tulasidas, and
G S Raghavan, and
F van de Voort, and
R Girard
January 2014,
Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference,
T N Tulasidas, and
G S Raghavan, and
F van de Voort, and
R Girard
August 2014,
Physics in medicine and biology,
