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Wyszukujesz frazę "Beta vulgaris L." wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Characterization of Triterpene Saponin Composition of White, Yellow and Red Beetroot (Beta vulgaris L.)
Autorzy:
Spórna-Kucab, Aneta
Tekieli, Anna
Skalicka-Woźniak, Krystyna
Grzegorczyk, Agnieszka
Świergosz, Tomasz
Wybraniec, Sławomir
Powiązania:
https://bibliotekanauki.pl/articles/2051041.pdf
Data publikacji:
2022-06-06
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
betavulgarosides
Beta vulgaris L
food composition
LC-MS/MS
oleanolic acid
saponins
Opis:
Beta vulgaris L. is an important source of bioactive saponins – a group of secondary metabolites – that have spurred a growing interest due to their health-promoting properties. This study aimed to gain information on triterpene saponin profile of the peel and flesh of white, yellow and red beet of six cultivars – Snow Ball, Boldor, Ceryl, Chrobry, Forono and Tytus – harvested in Poland, in the same region. Twenty four saponins with oleanolic acid, hederagenin, akebonoic acid and gypsogenin as aglycons were identified and quantified by liquid chromatography/tandem mass spectrometry (LC-ESI-MS/MS). Among them, betavulgaroside I, II, III and IV were the major compounds, but the quantitative profile of saponins was found to be dependent on beet cultivar and root part, respectively. The highest content of saponins was found in the peel of yellow B. vulgaris Boldor (20812 mg/kg fresh weight, fw), while the lowest saponin content was determined in the flesh of white B. vulgaris Snow Ball (497 mg/kg fw). In addition, the total saponin content in peel and flesh in yellow beet (26054 mg/kg fw) was much higher than the total content in peel and flesh in red beet Tytus (8364 mg/kg fw) and white beet Snow Ball (1204 mg/kg fw). This is the first report on the profile of saponins in white and yellow beets.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2022, 72, 2; 159-170
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Boiling on Colour, Contents of Betalains and Total Phenolics and on Antioxidant Activity of Colourful Powder Derived from Six Different Beetroot (Beta vulgaris L. var. conditiva) Cultivars
Autorzy:
Bárta, Jan
Bártová, Veronika
Šindelková, Tereza
Jarošová, Markéta
Linhartová, Zuzana
Mráz, Jan
Bedrníček, Jan
Smetana, Pavel
Samková, Eva
Laknerová, Ivana
Powiązania:
https://bibliotekanauki.pl/articles/1363306.pdf
Data publikacji:
2020
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
beetroot
Beta vulgaris L. conditiva
beetroot meal
cultivar
boiling
betalain pigments
antioxidant activity
Opis:
Powders prepared from freeze-dried roots of six beetroot (Beta vulgaris L.) cultivars with red (cv. D'Egypte, Karkulka, Betina, Alexis), yellow (cv. Burpee's Golden) or red-white (cv. Chioggia) colour of root flesh were evaluated before and after boiling treatment (20 min, 100°C). Water and fat holding capacity (WHC and FHC), colour, contents of betalains and total phenolics (TPCs), and antioxidant activity were all significantly affected by cultivar as well as powder thermal treatment. WHC increased after boiling of the powder and varied between cultivars from 2.14 g/g (cv. D'Egypte) to 2.59 g/g (cv. Chioggia). The highest FHC of 1.22 g/g was observed in cv. Betina. Colour stability was optimal in the cultivars with red root flesh; with their lightness decrease between 6 and 10%. This corresponded with betalain content that was the highest in red cv. Betina; for which the values before and after boiling were 18.10 and 15.04 mg/g DM, respectively. Cultivar Betina significantly exceeded the other cultivars also in TPCs and antioxidant activity. The TPCs values of this cultivar were 3.73 and 3.32 mg gallic acid equivalents/g DM in the unboiled and boiled variant, respectively. Antioxidant activity of Betina powder before and after boiling was 11.13 and 11.69 mg ascorbic acid equivalents/g DM, respectively. The results indicated the significance of beetroot cultivar selection for thermal processing. Beetroots with red flesh significantly exceeded yellow and red-white cultivars in all the evaluated characteristics.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2020, 70, 4; 377-385
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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