Seasonal variations in the concentrations of lipophilic compounds and phenolic acids in the roots of Echinacea purpurea and Echinacea pallida.

@article{Thomsen2012SeasonalVI,
  title={Seasonal variations in the concentrations of lipophilic compounds and phenolic acids in the roots of Echinacea purpurea and Echinacea pallida.},
  author={Maria Obel Thomsen and Xavier Frett{\'e} and Kathrine B. Christensen and Lars Porskj{\ae}r Christensen and Kai Grevsen},
  journal={Journal of agricultural and food chemistry},
  year={2012},
  volume={60 49},
  pages={
          12131-41
        }
}
Roots of Echinacea purpurea and Echinacea pallida cultivated for 4 years in a North European climate were analyzed for seasonal variations in the concentrations of lipophilic constituents (alkamides, ketoalkenes, and ketoalkynes) and phenolic acids by harvesting five times during 1 year to establish the optimal time for harvest. A total of 16 alkamides, three ketoalkenes, two ketoalkynes, and four phenolic acids (echinacoside, cichoric acid, caftaric acid, and chlorogenic acid) were identified… CONTINUE READING
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