2016 Volume 63 Issue 9 Pages 415-419
The purpose of this study was to investigate the objective validation of the quality of citrus juice products using a metabolic profiling method. Citrus juice products stored at 55°C for 1-4 weeks were trimethylsilyl-derivatized and subjected to gas chromatography-mass spectrometry analysis. Principal component analysis showed that the amounts of fructose, glucose and sucrose changed according to the storage period. In addition, high performance liquid chromatography analysis of the citrus juice indicated that sucrose was hydrolyzed to equimolecular amounts of fructose and glucose. Thus, we propose that the method used in this study described product conditions objectively, and can be applied to the quality control of foods.
