SOP for Cleaning and Operation of Anaerobic Culture Jar | Pharmaguideline
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  • Apr 17, 2021

    SOP for Cleaning and Operation of Anaerobic Culture Jar

    Standard operating procedure to clean and operate the Anaerobic Culture Jar used for cultivation of anaerobic cultures.

    1.0 PURPOSE

    To lay down the procedure for Operation of Anaerobic Culture Jar.

    2.0 SCOPE

    This is applicable to Quality Control Department.

    3.0 RESPONSIBILITY

    Microbiologist

    4.0 ACCOUNTABILITY

    Head of Department

    5.0 PROCEDURE

    5.1 Remove the cover and place it carefully on the bench with the catalyst sachet uppermost, to reduce the risk of its contamination.
    5.2 Load the culture into the jar in their dishes or containers.
    5.3 Replace the cover on the jar and secure it with the bridge clamp, finger tightening the bakelite knob.
    5.4 Shut both needle valves.
    5.5 In case you’re using gas packs then follow the instructions as mentioned on the gas pack.
    5.6 Open the vacuum needle valve and allow the pressure in the jar to fall to or below 10 cm mercury. The cover will tend to pull down under vacuum.
    5.7 Close the valve after adding the gas packs and remove both the hydrogen and vacuum connections.
    5.8 Incubate the jar at 35°C to 37°C for the required period.
    5.9 After incubation, remove the bridge clamp and open one of the needle valves so that any reduced pressure inside the jar will be released and the covered can be removed.
    5.10 The catalyst which is provided to catalyze the reaction between residual oxygen and added hydrogen normally remains active for long periods.
    5.11 To activate the catalyst before a cycle, it should be heated in an oven for 90 minutes at 160°C.
    5.12 Lukas Type Indicator: In 100 ml of distilled water add 1.5 agar agar, 2 gm Sodium teteraborate (Na2B4O7.10H2O), 500 mg Sodium Thioglycolate, 2-4 drops of 1 % Methylene Blue,1-2 drops of 1% Phenol red and autoclave. After autoclaving fill 2/3 of the tube with the indicators. Cool and keep it in refrigerator until required.
    5.13 Use the indicator by placing it in the culture jar with its open end uppermost. When oxygen is absent it reverts to its colorless form, when it is constantly blue, either the catalyst is inert or the cover is leaking.

    6.0 ABBREVIATIONS

    6.1 SOP - Standard Operating Procedure
    6.2 % - Percent
    6.3 gm - Gram
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