So how about looking into a TEK that keeps polymerization in mind and tries to
minimize it?
So what would a "Min Poly TEK" look like? Some polymerization always happens, so maybe a TEK with a dedicated de-polymerization step is worth while. How about something like this:
1) Plant Matrix separation: Mix 100g bark, 200g water, and 25g of NaOH. Rest for 24h for plant matrix to be broken down.
2) De-polymerization: Add 500ml of vinegar. After that, dissolve in 40g of citric acid and 40g of ascorbic acid. Shake every once in a while for at least 24h.
3) FB extraction: Add 100ml of naphtha. Add 40g of NaOH to roughly neutralize the solution. Slowly add more NaOH (~10 to 20g) while mixing. Liquid will become cloudy temporarily and emulsions will form. With enough NaOH the emulsion will break. Siphon off naphtha.
4) Freeze precipitate as usual.