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Characterisation of hop varieties grown in Romania based on their contents of bitter acids by HPLC in combination with chemometrics approach

Author

Listed:
  • Liana-Claudia SALANŢĂ

    (Department of Food Science, Faculty of Food Science and Technology and)

  • Maria TOFANĂ

    (Department of Food Science, Faculty of Food Science and Technology and)

  • Sonia SOCACI

    (Department of Food Science, Faculty of Food Science and Technology and)

  • Elena MUDURA

    (Department of Food Science, Faculty of Food Science and Technology and)

  • Anca FĂRCAŞ

    (Department of Food Science, Faculty of Food Science and Technology and)

  • Carmen POP

    (Department of Food Science, Faculty of Food Science and Technology and)

  • Anamaria POP

    (Department of Food Science, Faculty of Food Science and Technology and)

  • Antonia ODAGIU

    (Department of Environmental Protection and Rural Development, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania)

Abstract

Reverse-phase high performance liquid chromatography technique was used for studying the evolution of bitter acids from three varieties of hop growing in Romania during the development of hop cones and the pelletisation process in order to provide the information on the bitter acids profile of each cultivar. Chemometrics methods were applied for highlighting the statistical correlations existing between the genotype (variety), chemotype (composition), and phenotype (phenophase of cone development) with respect to the classes of biologically active compounds investigated (bitter acids). The bitter acid content of each hop cultivar was not only significantly dependent on the phenophases of the cones, but was also influenced by the harvest year. The variations in the α/β ratio as well as cohumulone and colupulone contents were low in both experimental years and the cohumulone/∑α did fraction not exceed 30% in any of the three varieties.

Suggested Citation

  • Liana-Claudia SALANŢĂ & Maria TOFANĂ & Sonia SOCACI & Elena MUDURA & Anca FĂRCAŞ & Carmen POP & Anamaria POP & Antonia ODAGIU, 2015. "Characterisation of hop varieties grown in Romania based on their contents of bitter acids by HPLC in combination with chemometrics approach," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 33(2), pages 148-155.
    • Handle: RePEc:caa:jnlcjf:v:33:y:2015:i:2:id:365-2014-cjfs
    DOI: 10.17221/365/2014-CJFS
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    References listed on IDEAS

    as
    1. K. Krofta, 2003. "Comparison of quality parameters of Czech and foreign hop varieties," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 49(6), pages 261-268.
    2. S. Srečec & V. Zechner-Krpan & V. Petravić-Tominac & A. Čerenak & Z. Liber & Z. Šatović, 2010. "Phenotypic and alpha-acid content diversity of wild hop populations in Croatia," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(1), pages 37-42.
    Full references (including those not matched with items on IDEAS)

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