If I have a dry ethanolic extract of propolis (after rotary evaporation)
How to dissolve it in DMSO ? which concentration of the extract is needed in DMSO in order to be dissolved?
And after dissolving it .. I will need to dilute it later on to use it in broth microdilution for bacteria.. will it precipitate in the solution ?
Because I see some people say that it precipitate with dilution .. so how to solve this problem when using in for broth microdilution ?