Abstract
The parallel-plate electrode technique is widely used to evaluate physico-chemical properties of agricultural products because of its high precision, convenience and non-destructiveness. Electrical parameters, such as impedance Z, equivalent capacitance C, admittance Y, quality factors Q, phase angle θ and dielectric constant ε that are detected by this parallel-plate electrode technique can be used to evaluate a food material’s physico-chemical properties, physiological status and quality. Various factors can affect these electrical parameters. Some examples include the environmental factors of temperature and pressure; the measuring conditions of voltage and frequency; and the internal factors of water content, salt content, ripeness, freshness and shape. Therefore, it has been established the principle of parallel-plate measurement, and demonstrated its applications; namely, in the nondestructive maturity detection of fruits and vegetables, the quality testing of liquid food and the determination of the physico-chemical components of other food products. This review provides reference for future research and applications in food quality determination using the parallel-plate electrode technique.
Publication Date
2-28-2016
First Page
210
Last Page
214
DOI
10.13652/j.issn.1003-5788.2016.02.050
Recommended Citation
Na, YANG; Yamei, JIN; Haixiong, WU; Qian, MA; Zhengyu, JIN; and Xueming, XU
(2016)
"Research progress of electrical properties in detection of food materials based on parallel-plate measurements,"
Food and Machinery: Vol. 32:
Iss.
2, Article 50.
DOI: 10.13652/j.issn.1003-5788.2016.02.050
Available at:
https://www.ifoodmm.cn/journal/vol32/iss2/50
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