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Kapusta-Duch J., Leszczyńska T., Filipiak-Florkiewicz A., 2012. Comparison of total polyphenol contents And antioxidant activity in cruciferous vegetables grown in diversified ecological conditions. Acta Sci.Pol. Technol. Aliment. 11 (4), 335-346

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Issue 11 (4) 2012 pp. 335-346

Joanna Kapusta-Duch1, Teresa Leszczyńska1, Agnieszka Filipiak-Florkiewicz2

1Department of Human Nutrition, University of Agriculture in Krakow, Poland
2
Małopolska Center of Food Monitoring and Certification, University of Agriculture in Krakow, Poland

Comparison of total polyphenol contents And antioxidant activity in cruciferous vegetables grown in diversified ecological conditions

Abstract

 

Background.The aim of this study was to compare total polyphenol contents and antioxidant activity of three species of cruciferous vegetables grown under diversified ecological conditions for three consecutive years.
Material and methods. Methanol extracts were prepared to be used to determine (spectrometrically) the content of total phenolics, using the Folin-Ciocalteau reagent and antioxidant activity by identifying the sam- ple’s ability to extinguish an ABTS•+free radical.
Results.All these species of cruciferous vegetables contained similar total polyphenols amounts regardless of its origin. Only red cabbage from organic farms was characterized by significantly higher antioxidant activity compared to vegetables purchased from local retailers in Cracow and similar or those cultivated near the steelworks. In white cabbage from farms located in a former steelworks protection zone a higher antioxidant activity was found than in organically grown vegetables and similar to that in vegetables available in retail. Brussels sprouts was characterised by a similar antioxidant activity regardless of its origin.
Conclusions. On the basis of the present study, it cannot be concluded that organically grown cruciferous vegetables generally have higher contents of health-promoting secondary metabolites in comparison with the conventionally cultivated ones.

 

Keywords: ABTS•+ free radical, antioxidant activity, cruciferous vegetables, diverse ecological conditions, total polyphenols
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For citation:

MLA Kapusta-Duch, Joanna, et al. "Comparison of total polyphenol contents And antioxidant activity in cruciferous vegetables grown in diversified ecological conditions." Acta Sci.Pol. Technol. Aliment. 11.4 (2012): 335-346.
APA Kapusta-Duch J., Leszczyńska T., Filipiak-Florkiewicz A. (2012). Comparison of total polyphenol contents And antioxidant activity in cruciferous vegetables grown in diversified ecological conditions. Acta Sci.Pol. Technol. Aliment. 11 (4), 335-346
ISO 690 KAPUSTA-DUCH, Joanna, LESZCZYńSKA, Teresa, FILIPIAK-FLORKIEWICZ, Agnieszka. Comparison of total polyphenol contents And antioxidant activity in cruciferous vegetables grown in diversified ecological conditions. Acta Sci.Pol. Technol. Aliment., 2012, 11.4: 335-346.