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Prospects for the rapid detection of mealiness in apples by nondestructive NMR relaxometry

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Abstract

The potential of nuclear magnetic resonance (NMR) relaxometry for quantitative evaluation of apple mealiness has been investigated. The degree of “mealiness” was defined by several mechanical techniques, including penetration, compression and shear rupture as well as by the BRIX (soluble solids) and juiciness levels. These data were correlated with both magnetic resonance imaging (MRI) and NMR water proton transverse relaxation time measurements on a fruit-by-fruit basis. It was found that increasing mealiness caused a systematic increase in the transverse relaxation rate. The potential for rapid, on-line NMR/MRI detection of apple mealiness is discussed.

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Authors and Affiliations

  1. Departamento de Ingeniería Rural, Universidad Politécnica de Madrid, Madrid, Spain

    P. Barreiro, A. Moya, E. Correa & M. Ruiz-Altisent

  2. Centro de Resonancia Magnética Nuclear, Universidad Complutense de Madrid, Madrid, Spain

    M. Fernández-Valle

  3. Flanders Center/Laboratory of Postharvest Technology, Katholieke Universiteit Leuven, Leuven, Belgium

    A. Peirs

  4. Institute of Food Research, Norwich Research Park, Colney, NR4 7UA, Norwich, UK

    K. M. Wright & B. P. Hills

Authors
  1. P. Barreiro
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  2. A. Moya
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  3. E. Correa
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  4. M. Ruiz-Altisent
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  5. M. Fernández-Valle
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  6. A. Peirs
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  7. K. M. Wright
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  8. B. P. Hills
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Barreiro, P., Moya, A., Correa, E. et al. Prospects for the rapid detection of mealiness in apples by nondestructive NMR relaxometry. Appl. Magn. Reson. 22, 387–400 (2002). https://doi.org/10.1007/BF03166119

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  • DOI: https://doi.org/10.1007/BF03166119

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