Determination of Fruit Juice Authenticity Using High Resolution Chromatography, UV, Time-of-Flight MS, and Multivariate Analysis
The verification of food sources and authenticity is an activity that has increased in importance over the last decade. The adulteration of food and beverages has emerged as a growing problem that can pose potential threats to the health of consumers and to the integrity of the industry. One of the issues the fruit juice industry faces is in the research and development of new and exotic juice varieties. While many of the common fruit juices that have been in the marketplace for many years are analytically well documented and studied, this is not always the case for the newer juices that are now available. For these types of products, there is a need for sophisticated testing methods to help authenticate ingredients and finished products. In this application note, we illustrate how the combination of Waters' UltraPerformance Liquid Chromatography (UPLC) system for high-resolution separations, ACQUITY UPLC Photodiode Array (PDA), eλ Detector, and accurate mass Xevo G2 QTof MS, with the appropriate chemometric software tools, allow easy and rapid differentiation between authentic and adulterated pomegranate juice samples.
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