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• Jurikova, T
• Sochor, J
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• Adam, V
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• Adam, V
• Kizek, R
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Molecules 2012, 17(8), 8968-8981; doi:10.3390/molecules17088968

Article

Evaluation of Polyphenolic Profile and Nutritional Value of Non-Traditional Fruit Species in the Czech Republic — A Comparative Study

Tunde Jurikova ¹ , Jiri Sochor ^2,3,4 , Otakar Rop ⁵ , Jiří Mlček ⁵ , Štefan Balla ^1,* , Ladislav Szekeres ¹ , Rastislav Žitný ¹ , Ondrej Zitka ^2,3 , Vojtech Adam ^2,3,4  and Rene Kizek ^2,3,4

¹ Department of Natural and Informatics Sciences, Faculty of Central European Studies, Constantine the Philosopher University in Nitra, Drazovska 4, SK-949 74 Nitra, Slovakia ² Karel Englis College, Sujanovo nam. 356/1, CZ-602 00, Brno, Czech Republic ³ Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic ⁴ Central European Institute of Technology, Brno University of Technology, Technicka, 3058/10, CZ-616 00 Brno, Czech Republic ⁵ Department of Food Technology and Microbiology, Faculty of Technology, Tomas Bata University in Zlin, Namesti T. G. Masaryka 275, CZ-762 72 Zlin, Czech Republic

* Author to whom correspondence should be addressed.

Received: 24 May 2012; in revised form: 14 July 2012 / Accepted: 16 July 2012 / Published: 27 July 2012

(This article belongs to the Section Natural Products)

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Abstract: Dry matter, organic acids, ascorbic acid, minerals (nitrogen, phosphorus, potassium, calcium, magnesium, sodium) and polyphenolic profile of a number of non-traditional fruit species and their genotypes, namely blue honeysuckle (Lonicera spp.), Saskatoon berry (Amelanchier alnifolia), black mulberry (Morus nigra), Tomentosa cherry (Prunus tomentosa Thunb.) and jostaberry (Ribes nigrum x Grossularia uva-crispa) were investigated. The results showed that Lonicera genotypes displayed high levels of ascorbic acid and they were rich in minerals, with the cultivar ‘Amfora’ achieving the leading position in nitrogen, phosphorus and potassium content among all lesser known fruit species. Amelanchier cultivars represented a valuable source of ascorbic acid and calcium, ‘Tišňovský’ and ‘Smoky’ together with Morus nigra ‘Jugoslavska’ accumulated the highest level of examined polyphenolic compounds. Regular consumption of studied less common fruit species can bring health benefits so they can represent a high potential value for fruit growers and in addition they can be utilised as functional foods.

Keywords: non-traditional fruit species; dry matter; organic acids; ascorbic acid; minerals; polyphenolic compounds

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