I just did a quick mini extraction on 100 old rivea corymbosa seeds ala heptane & isopropyl. 3x heptane washes, 18-24hrs each, then the same for the 90% iso. Evapped to a slightly gooey greenish/tan film. I washed this again with heptane and it pulled off a considerable amount of green crap.
Dissolved what remained in distilled water, and while pipetting i was not using my brain and had a 3ml pipette with cotton on the tip i was sucking the distilled water/lsa up with. Not thinking i was using my mouth to get suction to pull up the water, and got some in my mouth accidentally. Bitter as fuck, and definitely active
. Spit it out right away rinsed my mouth, but damn, good shit lol. Did not expect it to be all that active since the seeds were old, but definitely active at the small amount of water i got in my mouth. Still in a semi afterglow from last night.
Anyway, i think a good idea for reducing the amount of heptane used in washing your seeds would to be just do iso/acetone/water pulls first, evap that, then wash the goo with heptane/naptha/another np. Redissolve in your polar solvent after washing with heptane, evap again, and wash once more with heptane.
Should significantly reduce the amount of heptane/np solvent used, and is quicker/easier than doing 3 day long heptane/np washes first. Just wash out the crap once its in a concentrated goo thats a fraction of the seed mass.
Will be trying this on a larger scale with some more rivea/hbwr in a week or two and i'll write up a tek/document for my extraction procedure.
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