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Bioelectrical impedance analysis of bovine milk fat

Abstract

Three samples of 250ml at home temperature of 20 Degree-Sign C were obtained from whole, low fat and fat free bovine UHT milk. They were analysed by measuring both impedance spectra and dc conductivity in order to establish the relationship between samples related to fat content. An impedance measuring system was developed, which is based on digital oscilloscope, a current source and a FPGA. Data was measured by the oscilloscope in the frequency 1 kHz to 100 kHz. It was showed that there is approximately 7.9% difference in the conductivity between whole and low fat milk whereas 15.9% between low fat and free fat one. The change of fatness in the milk can be significantly sensed by both impedance spectra measurements and dc conductivity. This result might be useful for detecting fat content of milk in a very simple way and also may help the development of sensors for measuring milk quality, as for example the detection of mastitis.
Authors:
Veiga, E A; Bertemes-Filho, P [1] 
  1. Department of Electrical Eng., State University of Santa Catarina, Joinville (Brazil)
Publication Date:
Dec 20, 2012
Product Type:
Journal Article
Resource Relation:
Journal Name: Journal of Physics. Conference Series (Online); Journal Volume: 407; Journal Issue: 1; Conference: CLABIO 2012: 1. Latin-American conference on bioimpedance, Joinville (Brazil), 6-9 Nov 2012; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BIOELECTRICITY; CATTLE; DIAGNOSTIC USES; ELECTRIC CURRENTS; ELECTRIC IMPEDANCE; ENERGY SPECTRA; FATS; KHZ RANGE; MEASURING METHODS; MILK; SENSORS
OSTI ID:
22091197
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1742-6596; TRN: GB13O1134049463
Availability:
Available from http://dx.doi.org/10.1088/1742-6596/407/1/012009
Submitting Site:
INIS
Size:
[5 page(s)]
Announcement Date:
May 02, 2013

Citation Formats

Veiga, E A, and Bertemes-Filho, P. Bioelectrical impedance analysis of bovine milk fat. United Kingdom: N. p., 2012. Web. doi:10.1088/1742-6596/407/1/012009.
Veiga, E A, & Bertemes-Filho, P. Bioelectrical impedance analysis of bovine milk fat. United Kingdom. doi:10.1088/1742-6596/407/1/012009.
Veiga, E A, and Bertemes-Filho, P. 2012. "Bioelectrical impedance analysis of bovine milk fat." United Kingdom. doi:10.1088/1742-6596/407/1/012009. https://www.osti.gov/servlets/purl/10.1088/1742-6596/407/1/012009.
@misc{etde_22091197,
title = {Bioelectrical impedance analysis of bovine milk fat}
author = {Veiga, E A, and Bertemes-Filho, P}
abstractNote = {Three samples of 250ml at home temperature of 20 Degree-Sign C were obtained from whole, low fat and fat free bovine UHT milk. They were analysed by measuring both impedance spectra and dc conductivity in order to establish the relationship between samples related to fat content. An impedance measuring system was developed, which is based on digital oscilloscope, a current source and a FPGA. Data was measured by the oscilloscope in the frequency 1 kHz to 100 kHz. It was showed that there is approximately 7.9% difference in the conductivity between whole and low fat milk whereas 15.9% between low fat and free fat one. The change of fatness in the milk can be significantly sensed by both impedance spectra measurements and dc conductivity. This result might be useful for detecting fat content of milk in a very simple way and also may help the development of sensors for measuring milk quality, as for example the detection of mastitis.}
doi = {10.1088/1742-6596/407/1/012009}
journal = {Journal of Physics. Conference Series (Online)}
issue = {1}
volume = {407}
journal type = {AC}
place = {United Kingdom}
year = {2012}
month = {Dec}
}