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NMR relaxation study of avocado quality

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Abstract

Four nuclear magnetic resonance relaxation protocols are investigated as potential candidates for off-line and on-line determination of avocado maturity. Two-dimensionalT 1-T 2 andT 2-D correlation spectroscopy provides the most information but is only suitable for off-line quality control. The CPMGT 2 spectrum gives avocado oil content but requires intensive data processing. Suppression of the tissue water signal byT 1-Null methods is shown to be unreliable but a new, single-shot pulse sequence which uses diffusive attenuation to suppress the tissue water is shown to give a good correlation with oil content and is suitable for both off-line and on-line implementation.

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Authors and Affiliations

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

    N. Marigheto, S. Duarte & B. P. Hills

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  1. N. Marigheto
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  2. S. Duarte
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  3. B. P. Hills
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Marigheto, N., Duarte, S. & Hills, B.P. NMR relaxation study of avocado quality. Appl. Magn. Reson. 29, 687–701 (2005). https://doi.org/10.1007/BF03166344

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