Application of microwaves dielectric spectroscopy for controlling pork meat (Longissimus dorsi) salting process

Abstract Salting treatment is a common operation in the production of high quality meat products, one of its main problems is the difficulty to control the simultaneous water and salt fluxes into the product and control the protein fibers transformation throughout process. Dielectric properties of salted porcine meat are strongly related to its structure and composition. Thus, dielectric properties measurement appears as a promising method for controlling on-line the salting process in meat industry. Dielectric spectroscopy studies have been performed on raw and salted Longissimus dorsi pork samples. Dielectric spectra were measured in the frequency range from 500 MHz to 20 GHz by an Agilent 85070E open-ended coaxial probe connected to an Agilent E8362B Vector Network Analyzer immediately after salting process and also 16 h. Salt content, moisture, water activity and volume were also measured. It has been demonstrated that the dielectric properties are a good tool to analyze the share of the added sodium chloride molecules in the muscle tissue during the salting treatment (bounded and solved ions).

[1]  M. Kent,et al.  Composition of foods including added water using microwave dielectric spectra , 2001 .

[2]  D T Delpy,et al.  Changes in human fetal cerebral hemoglobin concentration and oxygenation during labor measured by near-infrared spectroscopy. , 1992, American journal of obstetrics and gynecology.

[3]  Paul M. Meaney,et al.  Microwaves for breast cancer detection , 2003 .

[4]  M. Kent,et al.  Composition of foods using microwave dielectric spectra , 2000 .

[5]  Dielectric spectroscopy of osmotic solutions and osmotically dehydrated tomato products , 2007 .

[6]  Herman P. Schwan,et al.  Biological effects of non-ionizing radiations: Cellular properties and interactions , 1986, Annals of Biomedical Engineering.

[7]  G. Offer,et al.  The mechanism of drip production: Formation of two compartments of extracellular space in muscle Post mortem , 1992 .

[8]  R. Knochel,et al.  Optimization of the microwave determination of water in foods using principal component analysis , 2000, Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference [Cat. No. 00CH37066].

[9]  A. Datta,et al.  Dielectric Properties of Food Materials and Electric Field Interactions , 2001 .

[10]  Nobuhiro Miura,et al.  Microwave Dielectric Properties of Solid and Liquid Foods Investigated by Time-domain Reflectometry , 2003 .

[11]  A. P. Duffy,et al.  Dielectric relaxation spectroscopy and some applications in the pharmaceutical sciences. , 1995, Journal of pharmaceutical sciences.

[12]  Paul M. Meaney,et al.  Enhancing breast tumor detection with near-field imaging , 2002 .

[13]  R. H. Christie,et al.  Seasonal variation in the calibration of a microwave fat: water content meter for fish flesh , 2007 .

[14]  Jean-Louis Damez,et al.  Microwave sensing for meat and fish structure evaluation , 2007 .

[15]  M. Kent.  Hand-held instrument for fat/water determination in whole fish , 1990 .

[16]  S. Nielsen.  Determination of Moisture Content , 2010 .

[17]  B. Carciofi,et al.  Salting operational diagrams for chicken breast cuts: Hydration-dehydration , 2008 .

[18]  M. Kent,et al.  Determination of added water in pork products using microwave dielectric spectroscopy , 2002 .

[19]  Yuri Feldman,et al.  Time domain dielectric spectroscopy study of biological systems , 2003 .

[20]  B. Goy,et al.  The measurement of wood density by microwave sensor , 1992 .

[21]  A. C. Metaxas,et al.  Industrial Microwave Heating , 1988 .

[22]  Frank Daschner,et al.  Dielectric microwave sensors with multivariate calibration , 2003 .

[23]  Patrick Queffelec,et al.  Coaxial/cylindrical transition line for broadband permittivity measurement of civil engineering materials , 2006 .

[24]  Kensuke Ito,et al.  On-line monitoring of moisture and salt contents by the microwave transmission method in a continuous salted butter-making process , 1998 .

[25]  Fidel Toldrá,et al.  Physical Sensors for Quality Control during Processing , 2010 .

[26]  T. Matsumoto,et al.  Noninvasive method for measuring the electrical properties of deep tissues using an open-ended coaxial probe. , 1996, Medical engineering & physics.