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Article CommentaryCommentary

Do Plant Isolates Have a Role in Method Suitability and Growth Promotion Testing in the Microbiology Laboratory? Is It a Matter of Science versus Compliance?

Dennis E. Guilfoyle and Anthony M. Cundell
PDA Journal of Pharmaceutical Science and Technology September 2022, 76 (5) 444-460; DOI: https://doi.org/10.5731/pdajpst.2021.012675
Dennis E. Guilfoyle
1Johnson & Johnson, New Brunswick, NJ; and
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Anthony M. Cundell
2Microbiological Consulting, LLC, Scarsdale, NY
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  • For correspondence: tonycundell@gmail.com
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Article Information

vol. 76 no. 5 444-460
DOI 
https://doi.org/10.5731/pdajpst.2021.012675
PubMed 
35169041

Published By 
Parenteral Drug Association (PDA)
Print ISSN 
1079-7440
Online ISSN 
1948-2124
History 
  • Published online October 3, 2022.

Article Versions

  • previous version (February 15, 2022 - 08:07).
  • You are viewing the most recent version of this article.
Copyright & Usage 
© PDA, Inc. 2022

Author Information

  1. Dennis E. Guilfoyle1 and
  2. Anthony M. Cundell2,*
  1. 1Johnson & Johnson, New Brunswick, NJ; and
  2. 2Microbiological Consulting, LLC, Scarsdale, NY
  1. ↵*Corresponding Author: Microbiological Consulting, LLC, 105 Lee Rd., Scarsdale, NY 10583; Telephone: +1 914 725-3947; E-mail: tonycundell{at}gmail.com
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  • Evaluation and Standardisation of the Approach to Using Environmental Isolates in the AstraZeneca Microbiology Laboratories
    K Capper, P Duncanson, A Gravett, A Johnson
    EJPPS EUROPEAN JOURNAL OF PARENTERAL AND PHARMACEUTICAL SCIENCES 2025
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PDA Journal of Pharmaceutical Science and Technology: 76 (5)
PDA Journal of Pharmaceutical Science and Technology
Vol. 76, Issue 5
September/October 2022
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Do Plant Isolates Have a Role in Method Suitability and Growth Promotion Testing in the Microbiology Laboratory? Is It a Matter of Science versus Compliance?
Dennis E. Guilfoyle, Anthony M. Cundell
PDA Journal of Pharmaceutical Science and Technology Sep 2022, 76 (5) 444-460; DOI: 10.5731/pdajpst.2021.012675

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Do Plant Isolates Have a Role in Method Suitability and Growth Promotion Testing in the Microbiology Laboratory? Is It a Matter of Science versus Compliance?
Dennis E. Guilfoyle, Anthony M. Cundell
PDA Journal of Pharmaceutical Science and Technology Sep 2022, 76 (5) 444-460; DOI: 10.5731/pdajpst.2021.012675
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  • Article
    • Abstract
    • Introduction
    • Origin of the Use of Plant Isolates for Method Qualification and Growth Promotion Testing
    • Support for the Use of Plant Isolates in Other Regulatory Documents
    • The Instability of Plant Isolates in QC Laboratories
    • The Authority Given to the USP as a U.S. Standard-Setting Organization in the U.S. Federal Food, Drug, and Cosmetics Act
    • USP Requirements for Method Suitability and Growth Promotion Testing in USP <60>, <61>, <62>, and <71>
    • Experience in Clinical Microbiology Related to Growth Promotion Testing
    • History of Citation of the Absence of the Use of Plant Isolates during Regulatory Inspections
    • Why Are These Citations Misguided?
    • Microbial Species Most Frequently Isolated during Environmental and Water Monitoring and Product Release Testing
    • What Are the Phenotypic and Genotypic Differences between Compendial Strains and Plant Isolates?
    • The Role of Plant Isolates in Formulation Development—Especially Preservative Effectiveness Testing
    • Relationship between Compendial Designated Strains and Common Plant Isolates
    • Common Plant Isolates from Pharmaceutical Environments
    • What Are the Growth Promotion Tests Used by Media Manufacturers?
    • Conclusions
    • Conflict of Interest Declaration
    • Acknowledgements
    • References
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Keywords

  • Plant isolates
  • Compendial designated cultures
  • Method suitability
  • Growth promotion
  • Microbial tests
  • 483 observations
  • Warning letters

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