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Skipping the defatting stage in extraction of alkaloids

Discussion in 'Chemistry' started by user3256725, Oct 8, 2018.

  1. user3256725

    user3256725 Guest

    I am attempting to extract certain alkaloids from green plant matter, which is very high in waxes and fats.

    I understand that in this scenario it is common to first acidify and then use a non-polar solvent to de-fat the solution.

    I am curious though: say I were to basicify and extract alkaloids without any de-fatting. If I were then to add HCl solution to the non-polar solvent which now contains the alkaloids, wouldn't this in theory be equivalent to the de-fatting stage? Wouldn't the alkaloids would now be in the aqueous layer, and the lipids would be stuck in the non-polar layer?

    As the acid/base method is so common, I am wondering if there are any downsides to the method described above that I am unaware of. I only have enough material for one shot so I would just like to hear some input before I attempt this expedited method.

    May main fear would be emulsions that wouldn't break up. Is this a valid concern that is remedied by a preliminary de-fatting stage? Are there other concerns I should be wary of?

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