Stable isotopes determination in some Romanian fruit juices |
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Authors: | Dana Alina Magdas Romulus Puscas |
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Affiliation: | 1. National Institute for Research and Development of Isotopic and Molecular Technologies , Cluj-Napoca 5, Romania amagdas@itim-cj.ro;3. National Institute for Research and Development of Isotopic and Molecular Technologies , Cluj-Napoca 5, Romania |
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Abstract: | The characterisation of 45 Romanian single-strength fruit juices (apples, pears, plums and grapes) collected from different Transylvanian areas by means of stable isotope approach are presented and discussed in this study. We measured 2H/1H, 18O/16O ratios from water juice and 13C/12C from pulp and compared these results with those already reported in the literature for single-strength juices, in order to see how the geographical and climatic conditions of Transylvania and the meteorological peculiarities of the year 2010 influence the isotopic composition of the investigated fruit juices. The δ13C mean values that we found for apple pulp picked up from different Transylvanian areas show slight differences, probably due to the environmental conditions of the plants. No significant correlation either between the variety of apple or the geographical origin and δ13C value was established. |
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Keywords: | adulteration carbon-13 fruit juices hydrogen-2 oxygen-18 stable isotope ratios Romania |
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