Hi ms_manic_minxx,
A great study you found there, bookmarked for future reference. I haven't yet got round to looking in to Reishi or Cordyceps. From my readings in Lions mane mushrooms it is a bit more trickier than just the preparation. Sometimes companies selling these supplements aren't as honest as you would hope for the claims they make/link to.
For example some of the more potent active constituents are found in the mycelium (Erinacines for lions mane) and some times the goodies are found in higher quantities in the fruiting bodies (Psilocybin in psilocybin mushrooms). Further to this each compound will require a certain extraction method (which I'm glad to see, your linked study details) based on its solubility in different solvents. i.e no point having a water extract on an alcohol soluble compound.
I wouldn't purchase any product that does not list 3 things:
1) if it is fruiting body or mycelium, or both.
2) if it is water or alcohol extract, or both.
3) and the beta-glucan content of the product. (beta glucans are a constituent of the cell walls of fungi, alpha glucans will be simple sugars the mycelium has been grown on, the higher the beta-glucan percentage the more fungi cells and more active constituents in your product.)
If you are to eat whole mushrooms I would try to increase surface area (powdering) as much as possible. I briefly touched upon consuming powdered mushrooms with a source of chitinase, to further increase the bioavailability of powdered mushrooms.
Great thread, these two mushrooms are definitely on my radar
https://www.realmushroom...oor-quality-measurement/