3M unveils 48-hour indicator test for yeasts and molds

3M launches 48-hour Yeast and Mold indicator test

3M Food Safety has launched an indicator test that enables the detection of yeasts and molds in as little as 48 hours, improving on conventional agar methods.

The 3M Petrifilm Rapid Yeast and Mold Count Plate cuts the waiting time, which for conventional agar testing methods required a five to seven day incubation period.

The sample-ready system uses a three-step process: Inoculation, Incubation and Enumeration and has been tested using dairy, bakery and confectionery products.

3M said benefits included quicker product release – reducing the financial cost of carrying inventory, longer shelf life and faster service in delivering product to customers.

Indicator dyes and growth components

Eric Amann, global marketing manager at 3M Food Safety, said the firm had developed a proprietary formulation involving indicator dyes and growth components that react with enzymes produced by yeasts and molds.

He told FoodQualityNews.com that consequences of not having a good indicator test include varying product freshness and quality in the marketplace and changes in raw materials, the production process and environment may not be detected – leading to severe and costly quality and safety failures down the road.

3M tested the product with naturally and artificially contaminated foods ranging from dairy products, fruits, vegetables, meat, seafood, juices and bakery/confectionary products.  

“Over 40 strains of yeasts and molds commonly found in food products were included in the testing to validate the performance of the product," he said.  

“Depending on the food and stress level exposed to, some yeast and molds may show up faintly at first, with their interpretation/appearance being enhanced over a longer period of incubation.”

It is designed to be incubated at either 25°C or 28°C to leverage biological processes that will speed up detection. 

This offers the end user the flexibility and latitude to choose the temperature that works best for their foods and strains present in that food, he added.

Plate improvement

3M improved upon its current yeast and mold plate by introducing a circular foam barrier to the plate, similar to what is found on other 3M Petrifilm plates such as the Coliform Count plate.

The 3M Petrifilm Rapid Yeast and Mold Count Plate results in blue-colored yeast and mold colonies and contains technological enhancements that prevent colonies from spreading or overlapping.

“This foam barrier provides a defined, circular zone in the center of plate into which the inoculum can be dispensed and easily spread by placing the flat spreader on top of the inoculation area,” said Amann.     

  • There is still time to register for our free online event: Food Safety and Testing 2013 which features the latest developments on allergen concerns and how best to deal with the Food Safety Modernization Act. 

Related News

3M Petrifilm yeast and mold plate gets AOAC-PTM approval

3M indicator test given AOAC approval

Kevin Habas talked to FQN about the 30 year anniversary

Make a wish! 3M Petrifilm Plates marks 30 years

The 3M Petrifilm Rapid Aerobic Count Plate

3M Food Safety launches 24-hour aerobic bacteria indicator test

3M’s Petrifilm Rapid Yeast and Mold Count Plate

3M indicator test receives AOAC OMA backing

3M develops microbiology testing tool for drinks

3M develops microbiology testing tool for drinks

Pathogen test kits sold well, reported Neogen.

Food safety firm Neogen reports net income up 30%

Local authorities are working to identify products for sale

Mold, expired label dates and rat infestation prompts UK cake recall

AOAC backs Neogen's yest and mould test

Neogen’s Soleris yeast and mould test now AOAC approved

Dr Paul Cook (left) with Dr Wayne Morley (right), LFR head of food safety, at the opening of the 'DirtyLab'

Pilot plant simulates factory micro-organism controls

Related Products

See more related products

Comments (1)

stanleyhoughton085 - 14 Oct 2013 | 11:19

Mold testing

I just came onto your post and found it quite interesting. I am associated with Mold Removal for Removing the moisture and water in your home .Thanks again for writing such a good post.

14-Oct-2013 at 11:19 GMT

Submit a comment

Your comment has been saved

Post a comment

Please note that any information that you supply is protected by our Privacy and Cookie Policy. Access to all documents and request for further information are available to all users at no costs, In order to provide you with this free service, William Reed Business Media SAS does share your information with companies that have content on this site. When you access a document or request further information from this site, your information maybe shared with the owners of that document or information.