Original Research ArticleEvaluation of the inorganic content of six underused wild berries from Portugal: Potential new sources of essential minerals

- The inorganic composition of six underused wild berries is reported.
- Samples were analyzed by ICP-MS after microwave digestion.
- The contribution to diet was calculated using Recommended Daily Allowance data.
- A comparison of the mineral content with similar berries is reported.
- The results indicate the potential benefits of consuming these berries.

The mineral content and levels of trace elements in six wild underused berries (Elaeagnus umbellata, Myrica faya, Rubus grandifolius, Sambucus lanceolata, Vaccinium padifolium and Vaccinium cylindraceum) have been determined by inductively coupled plasma-mass spectrometry after microwave digestion. The inorganic content of these foodstuffs has not been previously described in scientific literature (except for E. umbellata). Hence, this information is of high interest concerning the introduction of these non-commercial berries in the mainstream market. The analytical method has been validated analyzing a certified reference material and performing recovery experiments. The results obtained have been discussed using the Recommended Daily Allowance for minerals provided by the Commission of the European Community, and a comparison between the composition of the analyzed berries and different commercialised berries has been carried out. Data obtained in this study support the consumption of these less-known berries, in particular R. grandifolius and S. lanceolata, as potential novel sources of essential minerals.