Thank you :High 5:.
Don't get me wrong, I think highly of some AN products, I'd just like more honesty.
Maybe try to contact the Hygrozyme guys and tell them what you have planned, maybe they can provide a sample for you. If their product is any good, they would surely be interested.
Yeah you could do that, you would go about this the same way you prepare substrates for microbiology & mycology, pm me if you decide to do that.
But after all the products are supposed to be used on living plants & roots. And that is exactly how I would go about this for the most representative results.
Grow some clones in a similar environment (DWC), use the enzymes diluted as the manufacturer instructs as soon as the roots are old enough, and compare the before vs. after weight, and visually examine the roots. I would avoid using any medium at all by using netpots with neoprene inserts( aeroponics would work fine too ).