Journal of Microwave Power and Electromagnetic Energy (JMPEE)

 

TITLE

Measurements of the Dielectric Properties of Cheddar Cheese [PDF]

AUTHORS

A. Green

1997

32

1

16-27

YEAR

VOLUME

ISSUE

PAGES

 

Abstract

An experimental study of the dielectric properties of cheddar cheese at microwave frequencies has been made at 20 ºC. Measurements were made using rectangular waveguide transmission line cells in five frequency bands from 750 MHz to 12.4 GHz. The physical and chemical properties of the cheese were also measured and correlations with the dielectric properties were investigated. Cheddar cheese was chosen for this study because it is a homogeneous product which allows accurate dielectric measurements to be made. This makes it a useful product for testing models which predict the dielectric properties of foods based on knowledge of their chemical and physical properties.

 

Key Words:

Waveguide cells, Permittivity measurements, Dielectric cheese, Fat, Conductivity, Loss factor, Moisture content