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Food Chem. 2017 Apr 15;221:228-236. doi: 10.1016/j.foodchem.2016.10.049. Epub 2016 Oct 12.

Potential health benefits and quality of dried fruits: Goji fruits, cranberries and raisins.

Author information

1
Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland. Electronic address: magdalena.jeszka-skowron@put.poznan.pl.
2
Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland.
3
Department of Chemistry, Poznań University of Life Sciences, Wojska Polskiego 75, 60-625 Poznań, Poland.

Abstract

Dried fruits are important snacks and additives to other foods due to their taste and nutritional advantages. Therefore there is an important goal to control the quality of the food on the market for consumer's safety. Antioxidant activity of goji fruits (Lycium barbarum), cranberries (Vaccinium macrocarpon and oxycoccus) and raisins (Vitis vinifera) were studied using the DPPH (2,2-diphenyl-1-picrylhydrazyl) and Folin-Ciocalteu assays. Cu, Mn and Ge influencing antioxidant activity were determined together with selected toxic metals (Cd, Ni and Pb). Contamination with fungi was studied by quantification of their marker - ergosterol and important mycotoxins (aflatoxins B1, B2, G1 and G2, and ochratoxin A) were also determined. Antioxidant activity of all tested dried fruits was confirmed with goji fruits being the most profitable for consumers. Contamination of the tested fruits with toxic metals and mycotoxins was low.

KEYWORDS:

Antioxidant activity; Dried fruits; Elements; Ergosterol; LC–MS/MS; Mycotoxins

PMID:
27979197
DOI:
10.1016/j.foodchem.2016.10.049
[Indexed for MEDLINE]

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