Carolina 3M Petrifilm ColiformCount Plates Instrukcja obsługi - Strona 2

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The 3M™ Petrifilm™ Coliform Count (CC) Plate is a ready-made culture

medium system designed to facilitate counting coliforms. Petrifilm CC Plates

contain nutrients, a cold-water-soluble gelling agent, and an indicator dye.

Petrifilm plates are prepared on a grid background to facilitate counting

colonies.

Petrifilm CC plates are designed to allow organisms to grow in an oxygen-

limited environment. Their system of nutrients and dyes enables the user to

identify colonies formed by coliforms. For more information, please see

Interpretation. Petrifilm plates can be used in a variety of ways:

• Petrifilm plates can be hydrated with a bacterial culture, or a dilution of a

culture, for counting the viable organisms present. See Method A.

• Petrifilm plates can be hydrated first with water or buffer, then inoculated

by swabbing, streaking, or touching to surfaces. See Method B.

• Antibiotics can be added to the hydration fluid to select for resistant

organisms in Method A or B.

• Cells can be removed from colonies growing on Petrifilm plates and used

to inoculate additional cultures or for staining.

• Experimental results on Petrifilm plates can be saved for future reference

by scanning the plates on a standard computer-linked scanner. Do not

open the plates for scanning.

Petrifilm plates were developed for use in the food and beverage industry.

They have been certified for official analyses in many countries. For more

information about these applications, see the 3M page on the World Wide

Web at www.3m.com.

Description

Printed in USA