Abstract
An electronic nose was compared to a dynamic headspace gas chromatograph (HSGC) for differentiating premium orange juices. Five not-from-concentrate and one from-concentrate juices were analyzed using the electronic nose with an additional not-from concentrate sample in the GC analyses. Adequate separation was achieved between the samples with some overlap of two of the samples using the electronic nose and there were four distinct clusters of data when using the HSGC. This could indicate similar fruit sources or a processor providing the juice for two different labels. Both systems pro vided adequate results for this type of analysis with each instrument having its own advantages and disadvantages.
