Also, consider freeze-drying as that can make a nice solid.
If your compound is soluble in methanol, try precipitating it into petroleum ether or hexanes. Dissolve your mixture in several milliliters of methanol, and add drop-wise to ~4 L hexanes with vigorous stirring. If you add it too fast, it will make sticky clumps instead of a nice powder.
I am agree with Jasim and jack, thank you so much, i have an other question I Finished qualitative analysis by using solvent ethanol. How to quantify the total anthocyanin and proanthocyanidin from the extract? please do needful
I think vacuum evaporation also works for you. Your mixture should be filtered, the solvent should be evaporated and the extract should be dried in a vacuum dryer at 50 °C.
Thank you Masood. You're right, but that would have two downsides: it does not eliminate impurities, and is not the best option for large scale production.
Thank you everybody for your replies. As I mentioned to Masood, this is intended for large scale purification. What I have in mind is something like salt out used for protein precipitation. Have you ever came across that?