Lime also works fine for cactus extract. Mix dried, powdered cactus 1:1 with lime (CaOH). Add water to make a doughy paste. Leave overnight. Add more lime in the morning with enough water to maintain consistency. Mash up dough with limonene, separate limo using, e.g., coffee press (no plastic!!) Back-extract limo using acidified water. Evaporate water to obtain goodies. This whole process has been described elsewhere on here by 69ron.
I see no reason why this should not work with powdered MHRB.
“There is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position vis-à-vis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work."
― Jacques Bergier, quoting Fulcanelli