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  • 1 Physics and Control Department, Faculty of Food Science, Corvinus University of Budapest Somlói út 14-16, H-1118 Budapest, Hungary
  • 2 Physics and Control Department, Faculty of Food Science, Corvinus University of Budapest Somlói út 14-16, H-1118 Budapest, Hungary
  • 3 United States Department of Agriculture-Grain Inspection, Packers and Stockyards Administration Kansas City, MO 64153, USA
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Generally the drying process of fruits is followed by weight loss. The weight loss characterizes only the global moisture content of fruits and does not give information about the inner state of tissue. Electrical impedance spectroscopy of biological tissues shows ab-dispersion band that is associated with membrane structures and is sensitive to their integrity and functionality. The aim of this study was to measure the impedance spectra of apple slices during drying and to correlate impedance parameters to moisture content in the different drying periods. The electrical impedance spectra of apple slices were determined during drying by an HP 4284A Precision LCR Meter in frequency range from 30 Hz up to 1 MHz. The measured spectra were approximated by Cole-impedance elements. Parameter values for the fitted curves that characterized the state of drying tissue showed good correlation with the moisture content calculated from weight loss in the two falling-rate drying periods.

  • Zhang, M. I. N., Willison, J. H. M. (1991) Electrical impedance analysis in plant tissue: a double shell model. J. Exp. Bot. 42:1465-1475.

    'Electrical impedance analysis in plant tissue: a double shell model. ' () 42 J. Exp. Bot. : 1465 -1475.

    • Search Google Scholar
  • Anderson, L. S., Gajda, G. B., Stuchly, S. S. (1986) Analysis of an open-ended coaxial line sensor in layered dielectrics. IEEE Trans. On Instrumentation and Measurement IM-35: 13-18.

    'Analysis of an open-ended coaxial line sensor in layered dielectrics ' () IM-35 IEEE Trans. On Instrumentation and Measurement : 13 -18.

    • Search Google Scholar
  • Cox, M. A., Zhang, M. I. N., Willison, J. H. M. (1993) Apple bruise assessment through electrical impedance measurements. J. Hort. Sci. 68(3): 393-398.

    'Apple bruise assessment through electrical impedance measurements. ' () 68 J. Hort. Sci. : 393 -398.

    • Search Google Scholar
  • Engelder, D. S., Buffler, C. R. (1991) Measuring dielectric properties of food products at microwave frequencies. Microwave World 12(4): 6-15.

    'Measuring dielectric properties of food products at microwave frequencies. ' () 12 Microwave World : 6 -15.

    • Search Google Scholar
  • Kent, M. (1987) Electric and Dielectric Properties of Food Materials. Hornchurch, Essex, UK: Science and technology publisher.

    Electric and Dielectric Properties of Food Materials , ().

  • Fan, S., Staebell, K., Misra, D. (1990) Static analysis of an open-ended coaxial line terminated by layered media. IEEE Trans. On Instrumentation and Measurement IM-39: 435-437.

    'Static analysis of an open-ended coaxial line terminated by layered media ' () IM-39 IEEE Trans. On Instrumentation and Measurement : 435 -437.

    • Search Google Scholar
  • Felföldi, J., László, P., Barabássy, S., Farkas, J. (1993) Dielectric method for detection of irradiation treatment of potatoes. Rad. Phys. Chem. 41: 471-480.

    'Dielectric method for detection of irradiation treatment of potatoes. ' () 41 Rad. Phys. Chem. : 471 -480.

    • Search Google Scholar
  • Feng, H., Tang, J. (1998) Microwave finish drying diced apples in a spouted bed. J. Food Sci. 63: 679-683.

    'Microwave finish drying diced apples in a spouted bed. ' () 63 J. Food Sci. : 679 -683.

  • Feng, H., Tang, J., Cavalieri, R. P. (2002) Dielectric properties of dehydrated apples as affected by moisture and temperature. Transaction of ASAE 45(1): 129-135.

    'Dielectric properties of dehydrated apples as affected by moisture and temperature. ' () 45 Transaction of ASAE : 129 -135.

    • Search Google Scholar
  • Grant, E. H., Sheppard, R. J., South, G. P. (1978) Dielectric Behaviour of Biological Molecules in Solutions. Oxford: Clarendon Press, 4.

    Dielectric Behaviour of Biological Molecules in Solutions , () 4.

  • Grimnes, S., Martinsen, O. G. (2000) Impedance and Bioelectricity Basics. London: Academic Press, 87.

    Impedance and Bioelectricity Basics , () 87.

  • Harker, F. R., Maindonald, J. H. (1994) Ripening of nectarine fruit. Plant Physiol. 106-165.

    'Ripening of nectarine fruit ' () Plant Physiol. : 106 -165.

  • Hlavacova, Z. (2005) Electrical properties dependencies on temperature. Journal on Processing and Energy in Agriculture 9: 5-7.

    'Electrical properties dependencies on temperature. ' () 9 Journal on Processing and Energy in Agriculture : 5 -7.

    • Search Google Scholar
  • Kuang, W., Nelson, S. O. (1998) Low-frequency dielectric properties of biological tissues: a review with some new insights. Transaction of the ASAE 41(1): 173-184.

    'Low-frequency dielectric properties of biological tissues: a review with some new insights. ' () 41 Transaction of the ASAE : 173 -184.

    • Search Google Scholar
  • Labuza, T. P., Simon, I. B. (1970) Surface tension effects during dehydration. Food Techn. 24(6): 712-715.

    'Surface tension effects during dehydration. ' () 24 Food Techn. : 712 -715.

  • László, P., Vozáry, E., Zana, J., Zsivánovits, G., Sass, P. (1997) Electrical properties of apple cultivars during ripening and storage. Acta Horticulture 485: 239-247.

    'Electrical properties of apple cultivars during ripening and storage. ' () 485 Acta Horticulture : 239 -247.

    • Search Google Scholar
  • Lengyel, A., Sikolya, L., Szabó, B. (1999) Szövettani változások a gyümölcsök szárításánál. 3rd Hungarian Drying Symposium, Nyíregyháza, 48-53.

    , , .

  • MacDonald, J. R. (1987) Impedance Spectroscopy. New York: John Wiley and Sons, 17.

    Impedance Spectroscopy , () 17.

  • Mészáros, P., Funk, D. B. (2003) Moisture Limits for Measurement of Moisture in Cereal Grains and Oilseeds Below Zero Degrees Celsius by the Dielectric Method. ASAE Paper No. 033020, St. Joseph, Mich.: ASAE.

    ASAE Paper No. 033020 , ().

  • Mohsenin, N. N. (1980) Thermal Properties of Foods and Agricultural Materials. New York: Gordon and Breache, 157.

    Thermal Properties of Foods and Agricultural Materials , () 157.

  • Nelson, O. S. (1973) Electrical properties of agricultural products: A critical review. Trans. ASAE 16(2): 384-400.

    'Electrical properties of agricultural products: A critical review. ' () 16 Trans. ASAE : 384 -400.

    • Search Google Scholar
  • Nicolas, J. J., Richard, F. C., Goupy, P. M., Amiot, M. J., Aubert, S. (1994) Enzymatic browning reactions in apple and apple products. Crit. Rev. Food Sci. Nutr. 34: 109-157.

    'Enzymatic browning reactions in apple and apple products. ' () 34 Crit. Rev. Food Sci. Nutr. : 109 -157.

    • Search Google Scholar
  • Özilgen, M., Güvenc, G., Makaraci, I. M., Tümer, Z. (1995) Colour change and weight loss of apple slices during drying. Lebensm. Unters. Forsch. 201: 40-45.

    'Colour change and weight loss of apple slices during drying. ' () 201 Lebensm. Unters. Forsch. : 40 -45.

    • Search Google Scholar
  • Pething, R., Kell, D. B. (1987) The passive electrical properties of biological systems: their significance in physiology, biophysics and biotechnology. Phys. Med. Biol. 33: 933.

    'The passive electrical properties of biological systems: their significance in physiology, biophysics and biotechnology. ' () 33 Phys. Med. Biol. : 933.

    • Search Google Scholar
  • Rao, M. A., Rizvi, S. S. H. (1995) Engineering Properties of Foods. New York: Marcel Dekker, Inc., 276.

    Engineering Properties of Foods , () 276.

  • Repo, T., Zhang, M. I. N. (1993) Modeling woody plant tissues using distributed electrical cicuit, J. Exp. Bot. 44: 977.

    'Modeling woody plant tissues using distributed electrical cicuit ' () 44 J. Exp. Bot. : 977.

    • Search Google Scholar
  • Scott, M., Paul, R., Kaler, K. V. I. S. (2000) Theory of Frequency-Dependent Polarization of General Planar Electrodes with Zeta Potentials of Arbitrary Magnitude in Ionic Media 1. Theoretical Foundations and General Results J. Colloid Interface Sci. 230, 377-387.

    'Theory of Frequency-Dependent Polarization of General Planar Electrodes with Zeta Potentials of Arbitrary Magnitude in Ionic Media 1. Theoretical Foundations and General Results ' () 230 J. Colloid Interface Sci. : 377 -387.

    • Search Google Scholar
  • Seaman, R. L., Burdette, E. C., DeHaan, R. L. (1989) Open-ended coaxial device for applying RF/microwave fields to very small biological preparations. IEEE Trans. Microwave Theory Technol. MTT-37: 102-111.

    'Open-ended coaxial device for applying RF/microwave fields to very small biological preparations ' () MTT-37 IEEE Trans. Microwave Theory Technol. : 102 -111.

    • Search Google Scholar
  • Seaman, R., Seals, J. (1991) Fruit pulp and skin dielectric properties for 150 MHz to 6400 MHz. J. Microwave Power and Electromagnetic Energy 26(2): 72-81.

    'Fruit pulp and skin dielectric properties for 150 MHz to 6400 MHz. ' () 26 J. Microwave Power and Electromagnetic Energy : 72 -81.

    • Search Google Scholar
  • Stuchly, M. A., Stuchly, S. S. (1980) Coaxial line reflection methods for measuring dielectric properties of biological substances at radio and microwave frequencies: A review. IEEE Trans. On Instrumentation and Measurement IM-29: 176-183.

    'Coaxial line reflection methods for measuring dielectric properties of biological substances at radio and microwave frequencies: A review ' () IM-29 IEEE Trans. On Instrumentation and Measurement : 176 -183.

    • Search Google Scholar
  • Swicord, M., Davis, C. C. (1981) Energy absorption from small radiating coaxial probes in lossy media. IEEE Trans. Microwave Theory and Technol. MTT-29: 1202-1208

    'Energy absorption from small radiating coaxial probes in lossy media ' () MTT-29 IEEE Trans. Microwave Theory and Technol. : 1202 -1208.

    • Search Google Scholar
  • Üretir, G., Özilgen, M., Katnas, S. (1996) Effects of velocity and temperature of air on the drying rate constant of apple cubes J. Food Eng. 30: 339-350.

    'Effects of velocity and temperature of air on the drying rate constant of apple cubes ' () 30 J. Food Eng. : 339 -350.

    • Search Google Scholar
  • Toyoda, K., Farkas, I., Kojima, H. (1994) Monitoring changes in the material properties of agricultural products during heating and drying by impedance spectroscopic analysis. J. Food. Phys. suppl. 2. 69-71.

    'Monitoring changes in the material properties of agricultural products during heating and drying by impedance spectroscopic analysis. ' () 2 J. Food. Phys. suppl. : 69 -71.

    • Search Google Scholar
  • Toyoda, K., Tsenkova, R. (1998) Measurement of freezing process of agricultural products by impedance spectroscopy Control Applications in Post-harvest and Processing Technology, IInd workshop on Control Applications in Post-harvest and Processing Technology Budapest, Hungary, 139.

    IInd workshop on Control Applications in Post-harvest and Processing Technology , () 139.

    • Search Google Scholar
  • Vozáry, E., László, P., Zsivánovits, G. (1999) Impedance parameter characterizing apple bruise. Ann. N.Y. Acad. Sci. 873: 421-429.

    'Impedance parameter characterizing apple bruise. ' () 873 Ann. N.Y. Acad. Sci. : 421 -429.

    • Search Google Scholar
  • Vozáry, E., Niemirow, B. K., László, P., Sass, P. (1996) Electrical impedance of apple tissues during ripening. Progr. Biophys. Mol. Biol. 65 (suppl. 1:) 213.

    'Electrical impedance of apple tissues during ripening. ' () 65 Progr. Biophys. Mol. Biol. : 213.

    • Search Google Scholar
  • Zhang, M. I. N., Willison, J. H. M. (1992) Electrical impedance analysis in plant tissue: The effect of freeze-thaw injury on the electrical properties of potato and carrot root tissues. Can. J. Plant Sci. 72: 545-553.

    'Electrical impedance analysis in plant tissue: The effect of freeze-thaw injury on the electrical properties of potato and carrot root tissues. ' () 72 Can. J. Plant Sci. : 545 -553.

    • Search Google Scholar
  • Nelson, O. S. (2004) Dielectric Spectroscopy of Fresh Fruit and Vegetable Tissues. ASAE Paper No. 043009, St. Joseph, Mich.: ASAE.

    ASAE Paper No. 043009 , ().

  • Debye, P., Hückel, E. (1923) Zur Theorie der Elektrolyte. I. Gefrierpunktserniedrigung und verwandte Erscheinungen Z. Phys. 24: 185.

    'Zur Theorie der Elektrolyte. I. Gefrierpunktserniedrigung und verwandte Erscheinungen ' () 24 Z. Phys. : 185.

    • Search Google Scholar

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