Page 63 - MNU-PM502- Pharmaeutical Microbiology Theoritical Book
P. 63
Pharm D- Clinical Pharmacy Program Third Level Pharmaceutical Microbiology& Antimicrobials (PM 502)
Interpretation of results:
The preservative is effective in the product examined if
a) The concentration of viable bacteria is not more than 0.1% of the initial
concentration by the 14th day
b) The concentration of viable yeasts and moulds remain at or below the initial
concentration during the first 14 days
c) The concentration of each test microorganism remains at or below their designated
level during the remainder of the 28-day test period.
After watching the video:
• Is a challenge test required for all products?
• What are the products does not need challenge test
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