Journal article
Dielectric characterization of hen eggs during storage
Journal of food engineering, Vol.82(4), pp.450-459
2007
Handle:
https://hdl.handle.net/2376/103981
Abstract
Changes of the dielectric parameters of fresh hen eggs during storage were investigated for the development of a method to assess the main quality indices. Dielectric constant (
ε′) and loss factor (
ε″) were measured in the frequency range 20–1800
MHz using an open-ended coaxial probe on thick albumen and yolk of eggs after 1, 2, 4, 8 and 15 days of storage at room temperature. Tests were also carried out at the 9th day of storage to compare dielectric properties of thick and thin albumen. Statistical analysis was performed at 20, 100, 400, 900 and 1800
MHz. Thick and thin albumen showed slight differences in dielectric properties but significant only for
ε″ at 900
MHz. Dielectric constant and loss factor of yolk generally increased with the storage time. The maximum increment from the 1st to the 15th days of storage (22%,) was registered for
ε″ at 20
MHz. Methods based on the comparison between the experimental
ε″ and calculated values by means of conductivity and frequency can potentially be used in predicting eggs’ age.
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Details
- Title
- Dielectric characterization of hen eggs during storage
- Creators
- Luigi Ragni - Economy and Engineering Agricultural Department, University of Bologna, Piazza G. Goidanich, 60-47023 Cesena (FC), ItalyAli Al-Shami - Department of Biological Systems Engineering, Washington State University, Pullman, WA 99164-6120, USAGalina Mikhaylenko - Department of Biological Systems Engineering, Washington State University, Pullman, WA 99164-6120, USAJuming Tang - Department of Biological Systems Engineering, Washington State University, Pullman, WA 99164-6120, USA
- Publication Details
- Journal of food engineering, Vol.82(4), pp.450-459
- Academic Unit
- Biological Systems Engineering, Department of; Crop and Soil Sciences, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900546559701842
- Language
- English
- Resource Type
- Journal article