国产一级a毛一级a看免费视频,久久久久久国产一级AV片,免费一级做a爰片久久毛片潮,国产精品女人精品久久久天天,99久久久无码国产精品免费了

Use RAPID'E.coli 2 Agar for the identification and enumeration of generic E. coli and other coliforms in products intended for human or animal consumption, or in environmental samples. uses two chromogenic color reactions, β-D-galactosidase (GAL) and β-D-glucuronidase (GLUC), for the clear identification of E. coli and other coliforms.

Features and Benefits

• Direct enumeration of E. coli and coliforms on a single plate
• Coliforms are GAL+/GLUC- and form blue to green colonies
• E. coli is GAL+/GLUC+ and forms violet to pink colonies
• Results in 24 hr

Note: There are a few β-D-glucuronidase-negative strains of E. coli, e.g., E. coli O157. Some serovars of Salmonella and a few species of Shigella possess the enzyme β-D glucuronidase (< 1.5%).

Validations

Certified NF VALIDATION according to the ISO 16140 standard and validated by the AOAC.

Related Products

RAPID'E.coli 2 Agar, dehydrated ()