PDA Technical Glossary
PDA Technical Reports are highly valued membership benefits because they offer expert guidance and opinions on important scientific and regulatory topics and are used as essential references by industry and regulatory authorities around the world. These reports include terms which explain the material and enhance the reader’s understanding.
The database presented here includes the glossary terms from all current technical reports. The database is searchable by keyword, topic, or by technical report. Each definition provided includes a link to the source technical report within the PDA Technical Report Portal.
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Microbial Enumeration
Compendial test for microbial counts using the plate-count, membrane-filtration or most probable number methods described in USP <61> Microbiological Examination of Nonsterile Products: Microbial Enumerations Tests. (TR67)
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Microbiological Examination Tests
The compendial tests for microbial enumeration and absence of specified microorganisms as found in USP <61> Microbiological Examination of Nonsterile Products: Microbial Enumerations Tests and USP <62> Microbiological Examination of Nonsterile Products: Tests for Specified Microorganisms. (TR67)
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Microorganism of Concern
A bacterium, yeast, or mold that, due to it prominence in product recalls, infection outbreaks, nosocomial infections, and the clinical literature, results in a multifactor risk assessment to determine whether the microorganism is objectionable if it is present in a specific nonsterile product. (TR67)