Talking hot gas extraction? Sure it works to varying degree for cannabinoids but even more care is needed with terpenes and other phytochemicals because of sensitivity to oxidation. (even if you’re pumping N2 I think you would have to ensure that O2 adsorbed to the biomass is removed before cranking temp and extracting)
Extracting with oils on the other hand makes it much easier to preserve full spec phytochemicals since a final step decarb can be run at low temps/inert environment.
I think we are both getting at is any number of liquid/gaseous solvents can be pushed through CLS material columns. And pushing through several columns simultaneously can lead to increased efficiencies & capacity
Benefit of liquid solvents would be that it’s easy to collect and hold the column effluent as several fractions of decreasing potency so you can effect a countercurrent extraction with a single material column (i.e. reload column and then push your collected fractions back in order of decreasing potency)
Suggesting using the compressor already on most cls (recovery pump) to move gas (N2 or air).
Using said gas to move lipid around, and agitate reactor during decarb.
Aka running “oil” in an unmodified oil rig (ok, modified to blow hot smoke up its ass, but they should all have that functionality)
Which was the topic until you switched to using a stirred pot…
Yep, I had that functionally (same solvent serially over multiple columns) for about a week. It’s not a hard add to most multi-column rigs. It IS pretty hard for the operator to keep track of in my experience.
You’d need an extra honey pot or three to effect said counter current methodology on most single column rigs
hey no worries! Definitely has been an uphill battle to get people to come around to this.
Rationale behind my post here was to say, ‘hey, CLS operators have nearly all the tools they need to try this process out.’ Surely if you are already making BHO then you can retain terps, etc. My sense is you can make products that retain terps (for edibles, topicals) just as easily without the C1D1.
Terps decarbed in oil solutions can be excellent, especially when care is taken with low temps & inert environment. Definitely the case with quality rec flower. The thc infusions I’ve made with rec flower taste so good that I tell myself… I wish I could take more but I will be toooo high…
Ok! Right on, I could see this increasing infusion/extraction rates a good bit. My only worry pushing gas & carrier oil through material column would be channeling.
If you start charging with n2 at a fairly low psi (10psi) and then up the psi (30-60psi), once your Column is full (and during your soak) I’m comfortable to say you wouldn’t get channeling. At least I don’t with butane…I run kinda this same way, just slightly higher psi once I’m pushing through my crc.
It’s interesting that there’s at least a few companies here just decarbing and putting into edibles. At least one even advertises the strain they put in.
I’m still looking for any evidence that terps survive the gut and first pass metabolism to retain any physiological activity in the blood stream after ingestion (versus inhalation).
I have no idea how well they do, but here’s a rec company that’s making strain specific gummies with rosin. (My argument of course would be easier to process/formulate with infusions.)
d-Limonene is absorbed in the gastrointestinal tract. Two male volunteers administered 14C- d-limonene at 1.6 g orally excreted 55–83% of the dose in their urine within 48 h. The major urinary metabolite isolated was 8-hydroxy- para-menth-l-en-9-yl-β-D-glucopyranosi-duronic acid (M-VI, Fig. 1) (Kodama et al., 1976).
Great question. I’m of the opinion it has some sort of effect. I know I feel better when I eat fruit regularly. Obviously that’s no evidence but in the absence of it, I’ll trust my gut.