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Updated: Sep 25, 2026

Fruit Volatile Analysis Using an Electronic Nose
Published on: March 30, 2012
Volatile constituents in fresh and processed juices from grapefruit and new grapefruit hybrids
P E Shaw1, M G Moshonas, C J Hearn
1USDA, ARS, SAA, Citrus and Subtropical Products Research Laboratory, Winter Haven, FL 33883-1909, USA.
Abstract:
Forty-five volatile constituents of juices from grapefruit and grapefruit hybrids were quantified by headspace gas chromatography. The three types of grapefruit juice analyzed include pasteurized juice not from concentrate, reconstituted single strength juice from concentrate, and fresh, unpasteurized juice. Principal component and discriminant analyses were carried out using 48 grapefruit juice samples, and the samples were classified into the three types of juice based on degree of processing. Discriminant analysis was superior to principal component analysis for this purpose. Juices from two recently developed grapefruit hybrids were classified similarly to unpasteurized grapefruit juices from commercial cultivars.
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