drellahcl wrote:Drella Syrian Rue ExtractionHarmine Extraction -
1. Mix Powderized seeds with very dilute sulphuric acid and add salt to the liquors.
2. Mixed alk hydrochlorides will be precipitated within 1-3 hours.
3. Redisolve hydrochlorides in water and warm to 50 Degrees and decolorise with Ammonia.
4. Purify Harmine by crystallisation from methyl alchohol containing benzene.
Harmine will appear white/colorless.
Conversion:Reduce harmine with sodium in amyl alch to yield tetrahydroharmine.
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This extraction can also be used on p. incarnata/caapi.
For highest yields Syrian Rue should be used. they contain about 4% harmala alks, harmaline is about 2/3 of it.
Any questions please ask.
- drella.
thanks for this tek
there are a few possible issues some people might find, though.. many people here have been doing food safe harmala extractions using vinegar in the first step, pure salt, and sodium carbonate in the basing step. So using sulfuric acid and the methyl/benzene solvent might be a disadvantage..
Also, the way to purify in other teks has usually been to repeat the whole process.. A few teks using some kind of solvent to redissolve the alkaloids have been proposed but there were issues with it
you say use methyl alcohol with benzene. Benzene is a known carcinogen, and methy alcohol is also toxic, so if using that in the last step one should be VERY careful there are no traces of these when evaporating.
Is the benzene really necessary?
Another thing, it seems that when evaporating harmalas in any kind of alcohol or acetone, some of the harmaline into a red goo called 'harmala red' or 'turkey red', which might be an n-oxide or something else, and the activity of which is still unknonwn. Did you never had this issue? Maybe the benzene has something to do with this, but is it worth it?
you mentioned 4% yields with rue, even after purification? how clean are the crystals?
and lastly, you mentioned this can be made with p. incarnata. Any idea what kind of yields one can get with that?
thanks
