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ELECTRICAL PROPERTIES OF GRAIN AND OTHER FOOD MATERIALS
Author(s) -
NELSON STUART O.
Publication year - 1978
Publication title -
journal of food processing and preservation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.511
H-Index - 48
eISSN - 1745-4549
pISSN - 0145-8892
DOI - 10.1111/j.1745-4549.1978.tb00554.x
Subject(s) - dielectric , materials science , microwave , dispersion (optics) , water content , dielectric dispersion , dielectric heating , food products , condensed matter physics , composite material , permittivity , optoelectronics , chemistry , food science , physics , optics , computer science , telecommunications , geotechnical engineering , engineering
The electrical properties of usual interest for quality measurement and in high‐frequency and microwave dielectric heating of agricultural products and food materials are defined, and basic principles of dielectric dispersion theory are presented. Curves for grain, insects, and seed are shown that illustrate the dependence of dielectric properties upon such factors as frequency, moisture content and density. The temperature dependence of the dielectric properties is also discussed. Sources of information on the dielectric properties of agricultural products and food materials are cited, and a general discussion is included on the dielectric behavior to be expected from food materials.