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Updated: Jul 18, 2026

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Establishing the Minimal Bactericidal Concentration of an Antimicrobial Agent for Planktonic Cells (MBC-P) and Biofilm Cells (MBC-B)
Published on: January 2, 2014
A potential method for the specification of microbial barrier properties.
M H Scholla1, E T Hackett, S Rudys
1Du Pont Nonwovens, Wilmington, Delaware, USA.
Summary
A new microbial barrier test offers real-time quality control for porous packaging. This rapid physical test provides accurate barrier characteristics in just 10 minutes, unlike older methods.
Area of Science:
- Materials Science
- Microbiology
- Chemical Engineering
Background:
- Current microbial barrier tests for porous packaging lack universal acceptance and require lengthy testing durations (days).
- Existing methods pose challenges for real-time quality control in manufacturing settings.
Purpose of the Study:
- To develop and report on a novel microbial barrier test for porous packaging materials.
- To enable real-time barrier characteristic assessment within manufacturing environments.
Main Methods:
- Development of a new physical testing methodology for microbial barrier evaluation.
- Implementation of the test for quality control directly on the manufacturing line.
Main Results:
- The developed test allows for barrier characteristic determination in approximately 10 minutes.
- Findings from tests on various porous barrier materials are presented.
Conclusions:
- The new microbial barrier test facilitates rapid, real-time quality control for porous packaging.
- This advancement addresses the limitations of existing time-consuming and less accepted barrier challenge tests.
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