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Influence of Harvest Date and Postharvest Treatment on Carotenoid and Flavonoid Composition in French Marigold Flowers
A. Bhave, V. Schulzová, L. Mrnka, J. Hajšlová
Jazyk angličtina Země Spojené státy americké
Typ dokumentu časopisecké články
Odkazy
PubMed
32520549
DOI
10.1021/acs.jafc.0c02042
Knihovny.cz E-zdroje
- MeSH
- časové faktory MeSH
- flavonoidy chemie metabolismus MeSH
- karotenoidy chemie metabolismus MeSH
- květy chemie růst a vývoj metabolismus MeSH
- lutein chemie metabolismus MeSH
- rostlinné extrakty chemie metabolismus MeSH
- Tagetes chemie růst a vývoj metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
The aim of this study was to characterize carotenoids and flavonoids present in French marigold flowers (Tagetes patula "Durango Red") as well as to assess the effects of harvest dates and postharvest treatments on these compounds. Carotenoids and flavonoids were quantified using their respective standards or semiquantified using relevant related standards. Lutein and its derivatives largely dominated the flower carotenoids, while the flavonoids were diverse with patuletin leading the list. Of the different postharvest treatments, ensilage leads to the highest content of carotenoids (from 5.0 to 7.8 g kg-1 dw) and flavonoids (from 19 to 50 g kg-1 dw). The composition of individual flavonoids was greatly influenced by different postharvest treatments, while the influence of harvest dates was secondary. Ensilage and drying induced separate metabolic pathways leading to degradation of high-molecular glycosidic compounds, converting the compounds either to their aglycones or into the intermediate flavonoid glycosides. We conclude that according to the intended industrial application, different postharvest techniques can be employed to acquire desired flavonoids on a large scale.
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- $a Bhave, Apurva $u Department of Food Analysis and Nutrition, University of Chemistry and Technology, Technická 3, 166 28 Prague, Czech Republic
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- $a The aim of this study was to characterize carotenoids and flavonoids present in French marigold flowers (Tagetes patula "Durango Red") as well as to assess the effects of harvest dates and postharvest treatments on these compounds. Carotenoids and flavonoids were quantified using their respective standards or semiquantified using relevant related standards. Lutein and its derivatives largely dominated the flower carotenoids, while the flavonoids were diverse with patuletin leading the list. Of the different postharvest treatments, ensilage leads to the highest content of carotenoids (from 5.0 to 7.8 g kg-1 dw) and flavonoids (from 19 to 50 g kg-1 dw). The composition of individual flavonoids was greatly influenced by different postharvest treatments, while the influence of harvest dates was secondary. Ensilage and drying induced separate metabolic pathways leading to degradation of high-molecular glycosidic compounds, converting the compounds either to their aglycones or into the intermediate flavonoid glycosides. We conclude that according to the intended industrial application, different postharvest techniques can be employed to acquire desired flavonoids on a large scale.
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