I'd like to extract rosmarinic acid from some plant, like lemon balm or spearmint. Rosmarinic acid is slightly soluble in water and well soluble in most organic solvents. I don't care about any impurities that come from the plant.
Would the following procedure work?
Put the plant matter (probably chopped into small pieces?) into ethanol, let it sit for some time (like a day?), filter solids out.
That would leave me with rosmarinic acid in an ethanol solution. How would I get rid of the ethanol? Can I just boil it and let it evaporate? But wouldn't the compounds from the plant evaporate with the ethanol?
Thanks a lot
(I apologize if this is in the wrong category or anything like that, I'm new to this site. I also have no experience with chemistry though I find it interesting.)