Preliminary study on the influence of UV-C irradiation on microorganism viability and polyphenol compounds content during winemaking of ‘Regent’ red grape cultivar

• Autorzy: Mijowska K. , Cendrowski K. , Grygorcewicz B. , Oszmiański J. , Nawrotek P. , Ochmian I. , Zielińska B.

Identyfikatory

DOI

10.1515/pjct-2017-0039

• Języki publikacji: EN

Abstrakty

EN

In this study, UV-C light was tested as an alternative method to inactivate microorganisms in the must of ‘Regent’ red grape cultivar. The control sample containing the microorganism diluted in a physiological NaCl solution was prepared to take into consideration different conditions of liquids, such as turbidity and colour. Additionally, the changes in the composition of polyphenol compounds in the ‘Regent’ must after UV-C exposure were evaluated. The viability of yeasts (Saccharomyces cerevisiae) and bacteria (Oenococcus oeni) significantly decreased with time; however, the highest decline was noted after the first hour of exposure. The polyphenol compound content was significantly lower after UV-C treatment and this was mainly the result of anthocyanin decomposition. The total content of flavan-3-ols and hydroxycinnamic acids and derivatives increased after irradiation.

Słowa kluczowe

EN

UV-C; Oenococcus oeni; Saccharomyces cerevisiae; polyphenol compounds; UPLC-PDA/MS

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2017
• Tom: Vol. 19, nr 2
• Strony: 130--137
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Mijowska K.

• Corresponding author West Pomeranian University of Technology, Szczecin, Department of Horticulture, Faculty of Environmental Management and Agriculture, Juliusza Słowackiego 17, 71-434Szczecin, Poland

autor

Cendrowski K.

• West Pomeranian University of Technology, Szczecin, Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, Piastów 45, 70-311Szczecin, Poland

autor

Grygorcewicz B.

• West Pomeranian University of Technology, Szczecin, Department of Immunology, Microbiology and Physiological Chemistry, Faculty of Biotechnology and Animal Husbandry, Piastów 45, 70-311Szczecin, Poland

autor

Oszmiański J.

• Wrocław University of Environmental and Life Sciences, Department of Fruit, Vegetable and Plant Nutraceutical Technology, Faculty of Biotechnology and Food Science, Chełmońskiego 37, 51-630Wrocław, Poland

autor

Nawrotek P.

• West Pomeranian University of Technology, Szczecin, Department of Immunology, Microbiology and Physiological Chemistry, Faculty of Biotechnology and Animal Husbandry, Piastów 45, 70-311Szczecin, Poland

autor

Ochmian I.

• West Pomeranian University of Technology, Szczecin, Department of Horticulture, Faculty of Environmental Management and Agriculture, Juliusza Słowackiego 17, 71-434Szczecin, Poland

autor

Zielińska B.

• West Pomeranian University of Technology, Szczecin, Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, Piastów 45, 70-311Szczecin, Poland

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).