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  • Title: Chemical elements in organic and conventional sweet oranges.
    Author: Turra C, Fernandes EA, Bacchi MA, Barbosa Júnior F, Sarriés GA, Blumer L.
    Journal: Biol Trace Elem Res; 2011 Dec; 144(1-3):1289-94. PubMed ID: 21735113.
    Abstract:
    This work focuses on the determination of chemical elements in sweet oranges of variety Valencia produced under organic and conventional systems using instrumental neutron activation analysis and inductively coupled plasma mass spectrometry. The distribution of chemical elements was variable among the fruit parts with usually higher concentrations of Br, Ca, Ce, K, La, Na, Rb, and Sc in the peel. However, K, Na, and Rb also presented high values in the juice samples, while Fe and Zn were higher in the seeds. Differences between organic and conventional oranges were found for Br and Cu.
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