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Wyszukujesz frazę "beetroot juice" wg kryterium: Temat

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    Wyświetlanie 1-2 z 2
    Tytuł:
    Effect of temperature and concentration on rheological properties of beetroot juice
    Autorzy:
    Kobus, Z.
    Nadulski, R.
    Guz, T.
    Kamińska, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/297841.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    beetroot juice
    rheological properties
    viscosity
    Opis:
    The rheological behaviour of beetroot juice as a function of soluble solid content (from 10oBx to 50oBx) at a wide range of temperatures (from 10oC to 60 oC) was studied. The measurements were made using rotational rheometer (Brookfield Engineering Laboratories: model LVDV-II+ PRO). The investigation showed that the beetroot juice was Newtonian in behaviour and the viscosity was changed from 0.77 mPa s to 28.4 mPa s. The Arrhenius-Guzman equation was used to calculate the values of flow activation energy. In order to evaluate the influence of soluble solid content two models were applied: the power law and exponential equation. A new equation was proposed to express the combined effect of temperature and concentration on beetroot juice viscosity.
    Źródło:
    Technical Sciences / University of Warmia and Mazury in Olsztyn; 2014, 17(1); 67-76
    1505-4675
    2083-4527
    Pojawia się w:
    Technical Sciences / University of Warmia and Mazury in Olsztyn
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Beetroot Juice - Legal Doping for Athletes?
    Autorzy:
    Kurowska, Katarzyna
    Antosik, Katarzyna
    Kobylińska, Milena
    Decyk, Agnieszka
    Powiązania:
    https://bibliotekanauki.pl/articles/1832373.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    beetroot juice
    ergogenic compounds
    sports
    nitrates
    nitrites
    Opis:
    Nitric oxide (NO) is a physiologically important signaling molecule that promotes the expansion of blood vessels and thus facilitates the transport of oxygen (O2) and energy substrates to the muscles. Research shows that nitric oxide (NO) also improves the effectiveness of mitochondrial respiration, which is manifested by reduced oxygen consumption during exercise. Until recently, it was thought that nitric oxide (NO) could only be formed as a result of the endogenous pathway of oxidative transformations L-arginine. Recent research results indicate, however, that an alternative to the endogenous pathway of nitric oxide (NO) formation may be the exogenous supply of inorganic nitrates (NO3-) with food. The aim of the study was to review the current literature on the properties of beetroot juice as an important source of nitrates (NO3-) and its effectiveness in improving the exercise capacity of physically active people. A systematic review of the research, published from 2005 to January 31, 2021, was made on the basis of searching bibliographic databases such as: PubMed, Elsevier and Web of Science. The following keywords were used: “beetroot”, “beetroot juice”, “nitrates”, “nitrites”, “nitric oxide”, “supplementation”, “ergogenic substances”, “sports nutrition”. Although there are conflicting data, it appears that beetroot juice supply may be a cheap, natural, and promising nutritional strategy for improving sports performance in both endurance and intermittent high intensity (start-stop) exercise. More detailed studies are analyzing the effect of dietary nitrate (NO3-) supply in anaerobic exercise - especially in high-volume resistance training - are needed. It is also emphasized that further research is needed to elucidate the effects of specific factors on the variability of ergogenic effects after beetroot juice consumption, which may be of the greatest importance in terms of the effectiveness of this nutritional intervention.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2021, 35, 3; 57-70
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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