Stability of yellow and red rose pigments during their storage under different conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F01%3A00002557" target="_blank" >RIV/60460709:41210/01:00002557 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Stability of yellow and red rose pigments during their storage under different conditions

Popis výsledku v původním jazyce

The composition and stability of pigments isolated from yellow rose (cv. Papillon or Papillion Rose) and red rose (cv. Red France) were investigated. Thin layer chromatography and spectral data were used for pigments identification. b-Carotene, its 5,6,5´,6´-diepoxide, lutein, lycopene, zeaxanthin and phytofluene were identified as major carotenoids in acetone extract of the yellow rose petals. Cyanin and chrysanthemin were found as major anthocyanin constituents in acidic (HCl) methanolic extract of the red rose petals. The extracts were stored in a closed glass bottle under four different conditions (temperatures 22, 4 and - 8 oC, dark or daylight at 22 oC) and the pigments were determined periodically up to 132 days. Carotenoids were found to be much more stable (42 - 100.9 % of the initial values at day 132) than anthocyanins (9.2 - 14.9 % of the initial values). Losses of carotenoids fit to Arrhenius equation (correlation coefficient 0.894) and low activation energy indicates oxid

Název v anglickém jazyce

Stability of yellow and red rose pigments during their storage under different conditions

Popis výsledku anglicky

The composition and stability of pigments isolated from yellow rose (cv. Papillon or Papillion Rose) and red rose (cv. Red France) were investigated. Thin layer chromatography and spectral data were used for pigments identification. b-Carotene, its 5,6,5´,6´-diepoxide, lutein, lycopene, zeaxanthin and phytofluene were identified as major carotenoids in acetone extract of the yellow rose petals. Cyanin and chrysanthemin were found as major anthocyanin constituents in acidic (HCl) methanolic extract of the red rose petals. The extracts were stored in a closed glass bottle under four different conditions (temperatures 22, 4 and - 8 oC, dark or daylight at 22 oC) and the pigments were determined periodically up to 132 days. Carotenoids were found to be much more stable (42 - 100.9 % of the initial values at day 132) than anthocyanins (9.2 - 14.9 % of the initial values). Losses of carotenoids fit to Arrhenius equation (correlation coefficient 0.894) and low activation energy indicates oxid

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CE - Biochemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2001

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Zahradnictví (Horticultural Science)

ISSN

0862-867X

e-ISSN

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Svazek periodika

28

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

62-70

Kód UT WoS článku

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EID výsledku v databázi Scopus

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