Pharmaceutical Microbiology Manual
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ORA.007 Pharmaceutical Microbiology Manual
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- Revised: 25 Aug 2020 Title: Pharmaceutical Microbiology Manual
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OOD AND D RUG A DMINISTRATION O FFICE OF R EGULATORY A FFAIRS Office of Regulatory Science Document Number: ORA.007 Revision #: 02 Revised: 25 Aug 2020 Title: Pharmaceutical Microbiology Manual Page 27 of 92 For the most current and official copy, check QMiS. analyst did not contaminate the sample. Analysts should be sanitizing their gloves throughout the sterility analysis and changing gloves when needed. However, changing gloves prior to performing personnel monitoring is unacceptable. Each laboratory is required to monitor and trend data to ensure compliance and detect any abnormalities. H. Sub-culturing Primary Media Daily observations of primary test media (THIO and SCD) containing product should be performed without unnecessary disturbance. All handling of positive tubes, streaked plates, or subsequent inoculations of additional media will be done outside the clean room. These culture transfers are to be performed within a HEPA filtered biosafety cabinet or equivalent outside the ISO5 area which has been cleansed with an effective sporicidal/disinfectant anti-microbial agent. The analyst should be gowned with at least sterile gloves, sterile sleeves and a mask to minimize any possible cross contamination. 1. Record on Analyst's worksheets the day that the primary isolation media, Fluid Thioglycollate Broth (THIO), or Soybean-Casein Digest Broth (SCD) is turbid and inform supervisor. Streak tubes on the day they first appear positive and again at 14 days to determine the presence of other possible slow-growing (i.e., fungi) microorganisms. 2. Within a HEPA filtered biosafety cabinet or equivalent outside the clean room, streak turbid tubes onto Modified Soybean-Casein Digest Medium [SCD broth + 1.5% agar] (Modified SCDA) or other non-selective agar plate. 3. All streaked plates are incubated for a period at least as long as required for growth in original isolation media (THIO or SCD) not to exceed seven days. 4. Subculturing from Fluid Thioglycollate Broth (THIO) a. Subculture Thioglycollate broth to general medium agar plates in duplicate. Streak two plates; incubate one aerobically, and one anaerobically, each at 32.5 ± 2.5 ºC. NOTE: It is suggested to transfer an aliquot of media from close to the bottom of the tube to maximize the recovery of strict anaerobes. i. Note if any growth is observed on the anaerobic plate which differs from growth on the aerobic plate. Pick a single representative colony and perform an aero-tolerance test in order to determine if a strict anaerobe has been recovered. Proceed with identification of any strict anaerobes recovered when isolation is complete. |
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