Red Starch (S-RSTAR)

What is the procedure for using Red Starch (S-RSTAR) on agar pates to detect microbial colonies that are known to produce alpha-amylase? What should positive results look like?
In plate tests, you should see a cleaning zone where microbial cultures grow.  The Red Starch is depolymerised by alpha-amylase and will diffuse throughou...
Tue, 22 Mar, 2016 at 3:57 PM