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Title: DIFFERENTIATING ORANGE JUICES USING ROUTINE ANALYSES AS COMPARED TO INSTRUMENTAL METHODS

Author
item GOODNER, KEVIN

Submitted to: Proceedings of Florida State Horticultural Society
Publication Type: Abstract Only
Publication Acceptance Date: 3/13/2004
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Standard citrus laboratory procedures, such as °Brix, acid, ratio, color, Scott oil, vitamin C and pulp, are compared to various instrumental methods for differentiating commercial orange juices. Statistical models were generated using the data from an electronic nose, a head space gas chromatograph, and a mass spectrometer based chemical sensor. The separation was similar to that obtained from the instrumental methods, but has the advantage that these tests are already being performed by industry and there is likely available data for modeling. Additionally, there would be no extra costs involved unlike with the other instrumental methods. Seven not-from-concentrate and 3 from-concentrate orange juices were analyzed with excellent separation using the data from standard procedures. This compares favorably with the other methods examined in previous years.