Workshop Series: Microbiology Testing for Herbal Products and Dietary Supplement Industries

Analytical Laboratories Committee

Chair: Darryl Sullivan (Covance Laboratories)
Staff Contact: Holly Johnson, Ph.D.

Committee Purpose:  To provide guidance to AHPA’s membership in the area of analytical methods for botanicals and to serve as AHPA’s representative in assuring that the emerging development of analytical methods is managed in a manner that provides value to AHPA’s membership.

AHPA Members, if you would like to join this committee, please email the staff contact.

Committee Meeting Minutes and News

Workshop Series: Microbiology Testing for Herbal Products and Dietary Supplement Industries

April 5-7 in College Park, Maryland

Published: Wednesday, March 23, 2016

Event date: 4/5/2016 - 4/7/2016 Export event

Current Good Manufacturing Practice (cGMP) rules require dietary supplement manufacturers to implement conditions and controls that protect against the potential for microorganism and contamination. Microbiology testing is an important tool that helps the dietary supplement and herbal product industries ensure product integrity and strategies to protect products from microorganisms.

AHPA is partnering with the Joint Institute for Food Safety and Applied Nutrition (JIFSAN) to provide a two-and-a-half day, hands-on workshop covering microbiology testing for herbal and dietary supplement products.

Download Agenda >>


  • Cara Welch, Regulatory Special Assistant, CFSAN, FDA
  • Ali Abdel-Rahman, Supervisory Toxicologist, CFSAN, FDA
  • Sara Handy, Biologist, CFSAN, FDA
  • Andrea Otteson, Research Microbiologist, CFSAN, FDA
  • Padmini Ramachandran, Contractor, CFSAN, FDA
  • Angela Winslow, Microbiologist, Research Associate, JIFSAN
  • Janie Dubois, Laboratory Manager, JIFSAN
  • Tina Shaffer, Technical Sales Account Manager, DuPont Nutrition and Health Diagnostics
  • Buffy Stahl, Research and Development Leader, Dupont Nutrition and Health Diagnostics
  • Michael Wendorf, Senior Technical Advisor of Microbiology, Neogen Corporation
  • Paul Dudley, Territory Manager, Neogen Corporation
  • Camilla Gadotti, Field Technical Service Professional, 3M
  • John Bosland, Microbiologist, BioMerieux
  • Maria Mendres, Laboratory Supervisor - QC Microbiology, NOW Foods, Inc.
  • Maged Sharaf, Chief Science Officer, American Herbal Products Association


Tour of a traditional microbiology laboratory

  • Introduction to equipment, including biosafety hoods, autoclaves, pipettors, stomachers/mixers and incubators.

Hands-on session 1

  • Sampling and sample preparation
  • Techniques to eliminate matrix interference and product inhibition
  • Disposal of laboratory waste and official requirements

Hands-on session 2

Review of traditional, conventional, standard testing methods

  • Cultural methods – agar (general/selective and differential), broth (general and enrichment), agar slants
  • Plating techniques – pour, spread, and streak methods
  • Most probable number techniques
  • Membrane filtration
  • Dilutions and enrichments, including computation of colony forming units
  • Biochemical testing (using API 20E and Enterotubes)

Hands-on/Demo session 3 

Introduction to rapid methods with AOAC-OMA or PT Certification

  • Dry rehydratable film methods (Petrifilms)
  • Membrane filtration –Neogrids
  • Optical assays and dilute-to-specification – Soleris /Biolumix
  • ATP Bioluminescence Technology – Clean Trace, Hygiena,
  • Immunoassays – Reveal, Tecra kits, BioControl and VIDAS 
  • Automated enumeration (MPN) - Tempo
  • Molecular detections (Isothermal  and PCR technology) – Bax, MDS
  • Microbial ID testing – Biochemical, Gene Sequencing and MicroArrays

Rapid methods versus conventional methods

  • Validation, verification, proficiency testing programs in microbiology laboratory
  • Cost of conventional vs. rapid methods

 Confirmatory testing

  • Design
  • Investigating false positives, false negatives, and confirmed positives
  • Out-of-specification test result investigation

Q&A and round table discussion with instructors 

Limited to the first 20 Registrants

Event Details

Download Agenda >>

Dates: April 5-7, 2016
Times: April 5, 8:30 AM--5:00 PM

             April 6, 8:30 AM--5:00 PM

             April 7, 8:30 AM--3:00 PM

Location: College Park, Maryland
JIFSAN, International Food Safety Training Laboratory

5201 Paint Branch PkwyPatapsco Building #2134
View map >>
Lodging: Holiday Inn at College Park

Group Name: UMD JIFSAN-Training

Transportation: Shuttle between hotel and JIFSAN will be provided

Cost: $1,250 -- AHPA Members
          $1,500 -- Non-members
Save $100 when you purchase 
AHPA's Microbiology Webinar

Learn more about JIFSAN >>




2018 Annual Fund Sponsors


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