CHANGES IN ELECTRIC PROPERTIES OF APPLE JUICE CONCENTRATE AS A FUNCTION OF SELECTED QUALITY FACTORS

摘要

The research presented aimed at determining the electric properties of apple juice concentrate obtained industrially as well as at identifying the effect of selected quality factors on changes in its electric properties. A highly significant positivecorrelation was found between impedance and resistance values and extract content, refractive index value and density of the apple juice concentrate. On the other hand, a highly significant but negative correlation occurred between admittance and conductance and the parameters mentioned. No significant mathematical correlations were reported between reactive and potential acidity of the apple juice concentrate, its viscosity and electric properties measured.