I am facing this problem too and I feel SPE seems to be the better solution.
By using Pet ether all the lipophilic substances present within the material may be extracted, is there a way to selectively separate chlorophyll? I may agree with Pawan G. Nayak but question remains the same.
I think you you should analyse first in which part there is activity lipophilic or hydrophyillic. than move forward with activity guided approach
Research Institute for Health Science, Chiang Mai University, Chiang Mai, Thailand
University of Concepción
Abubakar Abubakar Umar
Universiti Teknologi PETRONAS
Poznan University of Medical Sciences
Indian Institute of Chemical Technology
Universidad Nacional de Mar del Plata
Cheikh Anta Diop University, Dakar
University of Geneva AND Nestlé Institute for Health Sciences