Detection of exogenous sugars in pineapple juice using compound-specific stable hydrogen isotope analysis

ARTICLE OPEN Detection of exogenous sugars in pineapple juice using compound-specific stable hydrogen isotope analysis Simon D. Kelly 1 ✉, Aiman Abrahim 1 , Peter Rinke 2 and Andrew Cannavan 1 An improved procedure for determining 2 H/ 1 H isotope ratios, using gas chromatography-isotope ratio mass spectrometry, has been used to detect the addition of exogenous C4-plant-derived sugars to pineapple juice. Isotopic techniques are commonly used to identify the addition of low-cost sugars to fruit...