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A Method of Evaluating Apple Juice Adulteration with Sucrose Based on Its Electrical Properties and RCC Model

Author

Listed:
  • Joanna Katarzyna Banach

    (Institute of Management and Quality, Faculty of Economics, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland)

  • Ryszard Żywica

    (Institute of Management and Quality, Faculty of Economics, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland)

Abstract

This study aimed to identify possibilities of controlling basic quality attributes (total soluble solids, organic acids, density, pH) and assessing the adulteration of natural dissociating solids with sucrose in apple juice produced from Malus domestica Borkh, var. Cortland, Idared, and Lobo (family Rosaceae Juss), using electrical parameters (conductivity Z, Y; capacity C p , C s ) and the RCC equivalent electrical model. The feasibility of employing electrical parameters was established based on correlations between selected quality attributes of apple juices varying in sucrose contents in the extract TSS Conc (0%, 15%, 20%, 25%, 30%) and their electrical parameters measured in a frequency range of 100 Hz to 100 kHz. The significant ( p ≤ 0.01) correlations obtained between the selected physicochemical parameters of juice (TSS Conc , OA) and electrical properties point to the feasibility of using them as an alternative quality assessment method to the reference methods (refractometric or potentiometric titration) used by the external supervising bodies. The electrical parameters (including Z 100Hz and Y 100Hz ) measured in the RCC model can, in the future, aid the design of a simple tool for the quantitative determination of apple juice adulteration with sucrose. They also encourage further research of this electrical method as an alternative to traditional analytical methods for evaluating the authenticity or adulteration of commercial fruit juices with sucrose or other sweetening agents.

Suggested Citation

  • Joanna Katarzyna Banach & Ryszard Żywica, 2021. "A Method of Evaluating Apple Juice Adulteration with Sucrose Based on Its Electrical Properties and RCC Model," Sustainability, MDPI, vol. 13(12), pages 1-11, June.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:12:p:6716-:d:574472
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    Cited by:

    1. Joanna Katarzyna Banach & Katarzyna Majewska & Małgorzata Grzywińska-Rąpca & Krystyna Żuk-Gołaszewska, 2022. "The Use of a Non-Invasive Electrical Method to Assess the Chemical Composition, Hardness, and Color of Durum Wheat Grain Cultivated in an Integrated System," Sustainability, MDPI, vol. 14(7), pages 1-14, March.

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