PDX-LIB contains a patented formula of antibiotics, growth enhancers and color- changing compounds. The antibiotics function synergistically to inhibit most non-Listeria microorganisms. Growth enhancers provide recovery nutrients to support the growth of sub-lethally injured Listeria. Indicator compounds will turn the broth from yellow to black when converted by beta-glucosidase enzyme produced by Listeria species. A brown to black color 30-48 hours at 37oC indicates a presumptive positive test for Listeria spp. Positive results can be read as early as 30 hours. Results cannot be considered negative until samples have been incubated for 48 hours.
PRODUCT CATALOG NUMBERS:
- C-25003-25 (PDX-LIB Media(20ml)/Container Case(25))
- C-25005-100 (PDX-LIB Media(20ml)/Container Case (100))