PYR Test (Pyrrolidonyl Arylamidase (PYR) test) – Principle, Procedure, Result
7 min read 
Principle of PYR Test Purpose of PYR Test Procedure of PYR Test The PYR examination is accessible in many versions. The original PYR test took 16 to 20 hours, but a 4-hour broth assay is now available, as reported in this post. Other forms include quick (10-15 minute) assays in which organisms to be evaluated … Read more