- Tytuł:
- 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. - Powiązania:
- https://bibliotekanauki.pl/articles/779408.pdf
- Data publikacji:
- 2017
- Wydawca:
- Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
- Tematy:
-
UV-C
Oenococcus oeni
Saccharomyces cerevisiae
polyphenol compounds
UPLC-PDA/MS - Opis:
- 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.
- Źródło:
-
Polish Journal of Chemical Technology; 2017, 19, 2; 130-137
1509-8117
1899-4741 - Pojawia się w:
- Polish Journal of Chemical Technology
- Dostawca treści:
- Biblioteka Nauki
Artykuł