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Characterization of citrus honey by deuterium NMR



Characterization of citrus honey by deuterium NMR



Journal of Agricultural & Food Chemistry 44(1): 139-140



Israeli honey samples were characterized with respect to the isotope ratio parameters delta-13C, measured by mass spectrometry, and D/H(CH-3) of the ethanols produced by alcoholic fermentation, measured by deuterium NMR. Ethanols obtained from fermentation of citrus honeys have D/H(CH-3) values similar to ethanols from citrus juice and that exceed the values obtained from other honeys by 5 ppm. This difference in D/H(CH-3) can be used to confirm the authenticity of citrus honeys. The delta-13C values of all honeys tested were similar and typical to C3 plants. Measurements of D/H(CH-3) of ethanols derived from honey and of delta-13C of the honey sugars are useful for detection of adulterations of citrus honey.

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Accession: 002775571

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DOI: 10.1021/jf950359k


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