Collections from Subject Matter Experts (SMEs)

Process Monitoring to Ensure Dairy Quality and Safety
Unpublished: Reveals the financial and reputational risks in dairy processing and explores strategies for quality control, from raw milk supply to post-pasteurization contamination.
November 2023
Author: C. Johnson, MS

Biofilms: A Persistent Challenge to the Dairy Industry
Unpublished: Insights and knowledge about biofilms and the vigilance required to detect, isolate, and eliminate them. February 2023
Authors: C. Johnson, MS and D. Bigalke, MS.

Improve the Sampling Process – Think SHACP
Unpublished Collection of Blog Posts, September 2020
Author: Jack van der Sanden, Senior Food Safety Advisor, bioMérieux

QualiTru in the News

QualiTru Verifies Process, Milk Quality from Farm to Plant to Whey Stream
Cheese Reporter, August 5, 2022

QualiTru Sampling Systems Helps Improve Food Safety with In-process Sampling Data
Cheese Market News magazine, April 8, 2022
Rena Archwamety

Published Aseptic Fluid Transfer Articles

5 Questions with Jeremy Travis
QA Magazine, March/April, 2024
Jeremy Travis, Vice President of Quality and Technical Services, Hilmar 

Looking Where It Matters
New Food magazine, April 22, 2022
François Bourdichon – Food Safety Consultant

Sampling: Back to Basics
New Food magazine, April 19, 2020
François Bourdichon, Food Safety Consultant
Dr. Roy Betts, Microbiology Ambassador for Campden BRI
Anne Bigalke, VP of Strategic Development

In-Line Fluid Sampling Without Contamination
Food Quality magazine, Sept./Oct., 2002
Marc G. von Keitz, Ph.D.

The Art of Managing Contamination (prevention of microbial contamination)
Pharmaceutical Processing – January 1, 2000
Jeffrey L. Tate, Ph.D.

Managing Quality Through Use of Aseptic Transfer and Inoculations Systems
Genetic Engineering News Vol. 16, No. 16, September 15, 1996
Rulon A. Chappell, Ph.D.

Effective Aseptic Material Transfer = Less Quality Failures
Pharmaceutical Manufacturing Review, March, 1996
Darrell L. Bigalke, M.S.

Strategy For Defense Against Post-Pasteurization Contamination
Dairy Field magazine, Vol. _, p. 41, cir. 1985
Darrell L. Bigalke, M.S.

Herd Health Articles

String Samples Can Help Manage Feed Costs
Hoard’s Dairyman Magazine, March 2021
Steve Martin, founder of DNMCmilk

Articles from Around the World

Monitoring to Detect Potential Contamination
NZ Dairy magazine, Winter 2022
Author: Richard Loader

Inline Sampling for Mastitis Management
Dairy Japan Magazine, August 2021

Solutions Looking Ahead – Improving Management Through Regular Sampling
Dairy Japan Magazine, April 2021

A New Method of Milk Sampling – Case Studies from Japan
Dairy Japan Magazine, March 2021

Innovative Sterile Sampling Method – QualiTru System
Poland:, February 17, 2021
Author: AUSPOL

New Innovative System for Aseptic Sampling
Denmark: Fooddes Magazine, December 2020
Author: Klaus Hansen, Food Engineer and Food Journalist

Key to Managing Milk Quality and Improving Reliability – Sampling Management
Dairy Japan Magazine, November 2020

Microbial Monitoring Reference Materials

Heat Resistant Psychrotrophs (HRP) and Their Effect on Market Milk Quality
Unpublished Seminar Slide Presentation, July 1, 2011
Darrell L. Bigalke, M.S.

Monitoring Microbial Contamination of Dairy Products
Unpublished Seminar Slide Presentation, November 23, 2007
Darrell L. Bigalke, M.S.

Dairy Quality Seminar (Tuition Free: Compliments of QualiTru®): Microbial Spoilage of Market Milk: Post-Pasteurization Contamination, or Heat-Resistant Psychrotrophic Bacteria
Unpublished Seminar Course Outline, November 1, 2007
Darrell L. Bigalke, M.S.

Raw Milk Sampling Update
Unpublished Seminar Slide Presentation, April 17, 2006
Darrell L. Bigalke, M.S.

Dairy Farms: Effective Line & Tank Sampling
Unpublished Seminar Slide Presentation, January 23, 2004
Darrell L. Bigalke, M.S.

Dairy Farms: Installation Instructions QualiTru Line & Tank Sampling
Unpublished Seminar Slide Presentation, January 23, 2004
Darrell L. Bigalke, M.S.