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Evaluation and comparison of antioxidant activity and biochemical compounds in some coloured potato cultivars

Author

Listed:
  • Rodica Soare

    (Department of Agricultural and Forestry Technologies, Faculty of Agronomy, University of Craiova, Craiova, Romania)

  • Maria Dinu

    (Department of Horticulture and Food Science, Faculty of Horticulture, University of Craiova, Craiova, Romania)

  • Cristina Babeanu

    (Department of Chemistry, Faculty of Sciences, University of Craiova, Craiova, Romania)

  • Marin Soare

    (Department of Agricultural and Forestry Technologies, Faculty of Agronomy, University of Craiova, Craiova, Romania)

Abstract

Potato is an important source of food, and in recent years, new genotypes have emerged on the European market, which particularly differentiate by the colour of tubers. The current study investigated and compared phytochemical properties and antioxidant activity of six potato cultivars: two of those with yellow-fleshed (Carpatin, Brasovean) and four with red and purple-fleshed (Cranberry Red, Mountain Rose, Purple Majesty, and Blue Congo), which were cultivated under the same climatic and soil conditions. The antioxidant activities were evaluated using two antioxidant systems 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). The results show that yellow-fleshed cultivars had higher total soluble substance content; red and purple-fleshed cultivars had a higher content of antioxidant compounds. Cv. Blue Congo it was recorded the highest antioxidant capacity in terms of DPPH and ABTS, of 164.17 μmol ascorbic acid (AsA)/100 g FW (fresh weight) and 114.96 μmol AsA/100 g FW, respectively. The highest total phenolic content was registered at cv. Purple Majesty of 63.54 mg gallic acid equivalents/100 g FW. Regarding flavonoids, the highest content was 40.96 mg quercetin equivalents/100 g FW for cv. Blue Congo and anthocyanin at cv. Purple Majesty of 113.19 mg/100 g FW.

Suggested Citation

  • Rodica Soare & Maria Dinu & Cristina Babeanu & Marin Soare, 2020. "Evaluation and comparison of antioxidant activity and biochemical compounds in some coloured potato cultivars," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(6), pages 281-286.
    • Handle: RePEc:caa:jnlpse:v:66:y:2020:i:6:id:202-2020-pse
    DOI: 10.17221/202/2020-PSE
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    References listed on IDEAS

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    1. K. Hamouz & J. Lachman & K. Pazderů & J. Tomášek & K. Hejtmánková & V. Pivec, 2011. "Differences in anthocyanin content and antioxidant activity of potato tubers with different flesh colour," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 57(10), pages 478-485.
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