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Electrical impedance to easily discover undeclared freeze-thaw cycles in slaughtered bovine meat Cover

Electrical impedance to easily discover undeclared freeze-thaw cycles in slaughtered bovine meat

Open Access
|Mar 2021

Abstract

A portable electrical impedance spectroscopy device was developed to monitor the bioimpedance resistive component of bovine meat by injecting a sinusoidal current of 1 mA at 65 kHz. Both right and left longissimus dorsi muscles were trimmed from 4 slaughtered cows. The left muscle portions were frozen to −18 °C for 7 days while the right ones were meantime maintained at 5 °C. Mean value of impedance per length (Ω/cm) of frozen and thawed left samples was 31% lower than that of right non-frozen one (P = 0.0001). It was concluded that the device is reliable for monitoring the maturation of beef meat in situ with the possibility of revealing undeclared freeze-thaw cycles.

Language: English
Page range: 3 - 10
Submitted on: Oct 21, 2020
Published on: Mar 30, 2021
Published by: University of Oslo
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2021 A. H. Dell’Osa, G. Battacone, G. Pulina, A. Fois, F. Tocco, A. Loviselli, A. Concu, F. Velluzzi, published by University of Oslo
This work is licensed under the Creative Commons Attribution 4.0 License.