Easy Dry^TM are absorbent pads saturated with a sterile, dehydrated culture medium. Each pad is pre-plated in a Petri dish and is immediately ready to use after pouring sterile distilled or deionized water on it. Easy DryTM are optimal for the examination of large sample volumes by the membrane filter method.

Easy Dry^TM Tryptic Soy is a non-selective isolation medium used for the enumeration of bacteria and fungi from nonclinical samples.

This medium meets the requirements of the Harmonized Microbial Limits Test (HMLT) methods to evaluate raw materials and nonsterile products for acceptable microbial quality.

PREPARATION

1.   Cut open a bag and remove the number of Easy Dry plates needed.

2.   Moisten the pad contained in the Petri dish with 2.2 ml of sterile distilled or deionized water.

3.   Wait 5 minutes before using.

TEST PROCEDURE

Filter the sample through a filter membrane (0.45 µm pore diameter). Transfer the membrane onto a plate containing a just rehydrated pad. Incubate aerobically at 30-35°C for 3-5 days.

INTERPRETING RESULTS

Perform the counting: the total aerobic microbial count (TAMC) is considered to be equal to the number of CFU found; if colonies of fungi are detected, they are counted as part of TAMC.

APPEARANCE OF THE MEDIUM

Whitish pad. Yellowish once rehydrated.

STORAGE

Store at 10-25°C away from light. Do not use the product beyond its expiry date on the label or if product shows any evidence of contamination or any sign of deterioration.

SHELF LIFE

2 years.