Effect of fertilisation and harvest period on polar metabolites of Calendula oficcinalis
AUTOR(ES)
Fernandes, Eduardo Felipe Alves, Meloni, Fernando, Borella, Júlio Cézar, Lopes, Norberto Peporine
FONTE
Rev. bras. farmacogn.
DATA DE PUBLICAÇÃO
2013-10
RESUMO
The present study evaluated the chemical profile of polar extracts of Calendula officinalis L., Asteraceae, that were grown under different cultivation conditions: chemical fertilisation, organic fertilisation and mulching. Furthermore, we investigated metabolite variations during plant development by comparing the metabolites from harvested plants at 60 and 120 days after planting. We used HPLC-DAD-MS/MS to tentatively identify metabolites. In total, we identified seven known compounds: five flavonoid glycosides and two caffeoylquinic acids derivatives. There were no statistically significant differences in the expression of metabolites from plants grown under the examined soil treatments. However, five substances varied according to harvest time, suggesting that the biosynthesis of polar metabolites of Calendula officinalis is not affected by changes in soil composition. Therefore, this plant could represent a source for phytomedicines with a constant content of polar metabolites.
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