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Effect of freezing on the physicochemical, bioelectrochemical and mechanical properties and microstructure of different apple cultivars.

Number: 0496

Author(s) : LEE Y., WATANABE T.

Summary

This study aimed to clarify the effect of freezing on the physicochemical, bioelectrochemical, and mechanical properties and microstructure of five apple cultivars. The apples were evaluated before and after freezing at –20 °C and –40 °C. The weight and water-holding capacity and impedance of samples were evaluated. A puncture test was performed to evaluate the mechanical properties. The microstructures were analyzed by X-ray computed tomography. Our evaluation revealed a significant change in the bioelectrochemical and mechanical properties of the apples after freezing. However, some cultivars retained their properties despite cell membrane destruction. Moreover, the cultivar with high water-holding capacity showed significantly less change in weight. Microstructure analysis revealed significant differences in ice crystal growth among the cultivars. This study will be useful for manufacturing high-quality frozen fruit products, and it contributes to understanding cell structure changes during freezing in fruit as it provides further insights into the cultivar differences.

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Details

  • Original title: Effect of freezing on the physicochemical, bioelectrochemical and mechanical properties and microstructure of different apple cultivars.
  • Record ID : 30031339
  • Languages: English
  • Subject: Technology
  • Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Publication date: 2023/08/21
  • DOI: http://dx.doi.org/10.18462/iir.icr.2023.0496

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