Culturesgroup started out Aspergillum (notably A.oryzae) experiments last November 2016 and it seems we haven’t stopped yet. Nor do we plan to. We’re looking at different rice strains, different semibuai rates (polishing) different inoculation temperatures and preparation techniques.
One of our recently finalized dried koji based powders. This one lasts for at least 9 months on the shelf, a typical test for the stability of drug candidates as reviewed by the Food and Drug Administration (FDA). What can be done with this and other forms of koji is the topic of one of the books we are currently writing with the goal of distributing it for free or at cost.