Extract your plant material in 70%methanol and dry it. You will definitely get a lot of spots on TLC. You can also load into column containing C-18 packing material and elute the column with 5%methanol-20%methanol to get purified phenolics. Try it
Thank you very much Dr. Joshi, what are the exact steps during extraction with 70% methanol.............Can u please suggest me the exact protocol.......Pls
You may use selective extraction with mixtures of ethyl acetate:methanol. After that separation on column chromatography with silica gel and mobile phases composition of ethyl acetate:methanol
Dry your plant material into powder. Add 70% methanol into it. Extract thrice with 70%methanol. Then total solvent dry on rotor vapour into powder form. Then load into column on HP-20 or you can use XAD.
Then elute the column with methanol. Again dry into powder form. Load again on C-18 and elute it with 5%MeOH -20%MeOH. You will get you phenolics definitely.