Food Safety for Dairy Processors / Operations / Supplier News
Food safety

BioControl Systems receives additional no objection letters for E. coli test methods

By: BioControl Systems Inc.

BioControl SystemsBioControl Systems Inc., a worldwide leader in food safety testing, has received additional “No Objection” letters from the United States Department of Agriculture Food Safety Inspection Service (USDA FSIS) for its Assurance GDS methods for the detection of non-O157 STEC. Four BioControl test methods for Top STEC have now been issued Letters of No Objection.

Assurance GDS combines the latest advancements in immunomagnetic separation (IMS), molecular technology, and food microbiology to provide four new methods for the detection of the major non-O157 serotypes of Shiga Toxigenic E. coli (STEC) O26, O45, O103, O111, O121, O145 and E. coli O157:H7. “No Objection” letters were received for the following methods: Assurance GDS Top 7 STEC MPX, Assurance GDS Top 6 STEC MPX, Assurance GDS Top 7 STEC (eae), and Assurance GDS Top 6 STEC (eae).

The Assurance GDS pathogen detection methods include a proprietary IMS-based sample preparation procedure specifically targeting either the top 6 or 7 O serogroups followed by PCR analysis for the detection of the eae and stx1 and stx2 genes. This approach satisfies the USDA criteria for detection of STEC. The Assurance GDS methodology targets the STEC genetic sequences contained in the specific serogroups of concern and minimizes false positives from other O serogroups while eliminating the need for additional time consuming and costly analysis. There are several testing options now available for labs to choose from, with assays targeting the Top 7 STEC, including E. coli O157:H7, or only the Top 6 non-O157 serogroups.

“With Assurance GDS Top 7 STEC MPX, producers can obtain results for both E. coli O157:H7 and the top non-O157 STEC from a single enriched sample and with a single test, after as little as 10 hours of incubation,” explained Anita Kressner, vice president of global sales and marketing. “Alternately, the Assurance GDS Top 7 STEC (eae) method allows for the sequential analysis of the top non-O157 STEC and E. coli O157:H7 by conducting the IMS sample procedure targeting the top 7 O serogroups, followed by screening first for eae,” states Kressner. If the sample is negative no further testing is required. If positive, the same sample broth is analyzed with the Assurance GDS Top 7 Shiga Toxin genes kit. These Assurance GDS assays are also available in a Top 6 format that excludes E. coli O157 for those organizations that want to use separate methods for O157.

About BioControl Inc.
BioControl has been a recognized leader in the development of innovative rapid microbiological tests for the food industry since 1985. The company offers an extensive line of proprietary, rapid tests for pathogen detection, quality control and hygiene monitoring. For more information please contact us at

SOURCE: BioControl Systems Inc.

Did you enjoy this article? Click here to subscribe to Dairy Foods Magazine. 
You must login or register in order to post a comment.



Image Galleries

Blue Bell Creameries, Brenham, Texas

Blue Bell Creameries of Brenham, Texas, has no shortage of ideas. Every year it considers roughly 300 new flavor concepts. Through a rigorous evaluation process, the company whittles those ideas down to five or six. It is serious about finding flavors that resonate with consumers and translating those flavors into ice cream.


This photo gallery contains additional, unpublished photos of dairy processing facilities featured in Dairy Foods magazine. To view more Behind the Scenes galleries go to our archives page!

3/31/15 2:00 pm EST

Raising the bar with in-line mixing and blending technologies: high output with flexibility and low costs

In this webinar, you will be introduced to advanced in-line blending, dosing and mixing technologies that offer high flexible productions, reduced product losses, shorter batch times, uniform products, and reduced ingredient costs. As a result, Food Manufacturers can optimize their productions and increase their profitability.

Dairy Foods Magazine

df feb cover

2015 February

What's happening in milk; plus we look at Blue Bell ice cream operations, what drives its success.

Table Of Contents Subscribe


What’s your favorite time of day to drink milk/flavored milk?
View Results Poll Archive


Tharp & Young on Ice Cream: An Encyclopedic Guide to Ice Cream Science and Technology

An at once an all-inclusive guide to the meaning of hundreds of technical terms and ideas needed for ice cream manufacturing, as well as a practical introduction to the ingredients, freezing methods, flavoring, and packaging of ice cream, sherbet, sorbet, gelato, frozen yogurts, novelties and many other kinds of frozen desserts.

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.


Facebook logo 40px 2-12-13 Twitter logo 40px 2-12-13  YouTube logo 40px 2-12-13  LinkedIn logo 40px 2-12-13google plus

Dairy Foods Buyers Guide

cover df july 2013Resource for buyers in the dairy processing industry to find information on the leading suppliers and manufacturers.

Find Ingredients, Equipment, Distribution, R&D and More.

Start Your Search Today.