Lutein in food supplements available on the markets of the Viszegrad countries

Authors

  • Miroslav Šivel Tomas Bata University in Zlí­n, Faculty of Technology, Department of Food Analysis and Chemistry, nám. T. G. Masaryka 275, 762 72 Zlí­n
  • Miroslav Fišera Tomas Bata University in Zlí­n, Faculty of Technology, Department of Food Analysis and Chemistry, nám. T. G. Masaryka 275, 762 72 Zlí­n
  • Bořivoj Klejdus Mendel University in Brno, Faculty of Agronomy, Department of Chemistry and Biochemistry; Zemědělská 1, CZ-61300 Brno
  • Stanislav Kráčmar Tomas Bata University in Zlí­n, Faculty of Technology, Department of Food Technology, nám. T. G. Masaryka 275, 762 72 Zlí­n
  • Vlastimil Kubáň Tomas Bata University in Zlí­n, Faculty of Technology, Department of Food Technology, nám. T. G. Masaryka 275, 762 72 Zlí­n
  • Jozef Golian Slovak University of Agriculture in Nitra, Faculty of Biotechnology and Food Sciences, Department of Food Hygiene and Safety, Tr. A. Hlinku 2, SK-94976 Nitra
  • Blanka Svobodová Tomas Bata University in Zlí­n, Faculty of Technology, Department of Food Technology, nám. T. G. Masaryka 275, 762 72 Zlí­n

DOI:

https://doi.org/10.5219/387

Keywords:

carotenoids, RP-HPLC, Marigold flower, tablets, capsules

Abstract

RP-HPLC method with UV-VIS detection was implemented for determination of contents of lutein in food supplements available on the markets in the Czech Republic, Slovakia, Poland, and Hungary. Altogether, 48 samples of food supplements in three dosage forms (22 samples of tablets, 18 samples of soft capsules, and 8 samples of hard capsules) were analysed. The amounts of lutein specified by the producer complied with their real contents only in 7 samples of the food supplements. Lutein in soft capsules showed the highest stability against oxidation; lutein in tablets was more prone to oxidation and lutein in hard capsules was most susceptible to oxidation process. Out of 21 Czech products, only four fell into the category of satisfactory products, three of them were soft capsules and one was a tablet. Out of 27 products manufactured abroad, only three were evaluated as satisfactory products, all of them were soft capsules, out of 48 analysed food supplement samples just seven fell into the category of satisfactory preparations, eight were evaluated as less satisfactory preparations, five were found inadequate products and 28 samples were labelled unsatisfactory. Only one in six analyzed samples contained the amount of lutein specified by the manufacturer, almost 60% of monitored lutein containing food supplement samples fell into the unsatisfactory product category. 

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References

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Published

2014-11-17

How to Cite

Šivel, M. ., Fišera, M. ., Klejdus, B. ., Kráčmar, S. ., Kubáň, V. ., Golian, J. ., & Svobodová, B. . (2014). Lutein in food supplements available on the markets of the Viszegrad countries. Potravinarstvo Slovak Journal of Food Sciences, 8(1), 261–266. https://doi.org/10.5219/387

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