Dried Echinacea Angustifolia roots

[rose]

Hello,
I need to know in wich part of the plantcel of the root and in what way (e.g.floating in the vacuole or atached to someting), the substance Echinacoside is. Echincacoside is a Cafficacid derivate. It is a sustances that has a antibiotic effect. I need to analyse this substance in dried Echinacea Angustifolia roots.