<< Return to News

Processing Probiotic Cultures

At MDG, we make Bacillus cultures and products for a range of industries, including food. When it comes to serving our customers in this industry, specifically those manufacturing probiotics for human gut health, they often ask how we keep their cultures separate from those in the other markets that we serve.

To keep food ingredients safe from cross-contamination, we leverage a dedicated room and equipment for food ingredients and process one strain at a time. We also follow strict manufacturing practices mandated for the food manufacturing industry, including having all equipment cleaned and logged after each use.

How we process probiotic food ingredients

Powder processing starts in the food room at our facility in Oak Creek, WI. The food culture is milled in this room and then added to a dedicated stainless-steel intermediate bulk container (IBC) which we refer to as “R2D2”.

Once R2D2 is filled, a special lid is fastened to the top that has dividers acting like paddles to help mix the culture effectively. The IBC is then wheeled over and connected to the blending machine which lifts and rotates the bin, thoroughly blending the culture within the IBC. It’s important to have a blended or homogenized culture as this will provide a consistent Bacillus count throughout the culture powder.

After mixing, the IBC is lowered and wheeled back to the food room where the culture is packed into final customer-specified packaging. Once packaged, the culture containers are labeled and placed in a holding area until approved by our Quality Control (QC) team for release. The room and equipment are cleaned, cleaning is logged and verified, and then the room is ready for the next food culture.

As an additional check, our QC team will swab the cleaned equipment for adenosine triphosphate (ATP) and allergens. Allergen swabbing helps show our team that the processes in place for preventing cross contamination at the milling and blending facility are effective.

MDG is here to help you!

Having dedicated rooms and equipment for food cultures prevents unintentional cross-contamination from other cultures and allergens. If you’re in need of food grade cultures to produce probiotics, we would be happy to give you a facility tour to show you our food culture processes and quality assurance procedures in-action. Contact us and one of our account representatives will be in touch.

Search Insights
Recently Posted Insights

MDG: Partners in Plant Health

At MDG, our mission is to Feed, Clean, Save the World through the development of microbial solutions that solve significant challenges in the markets we serve. We’re excited to continue working toward our mission by igniting our presence in the plant health market!...

MDG Selected as a Finalist in 2025 Wisconsin Innovation Awards

We are excited to share that, for the second consecutive year, we’ve been chosen as a finalist for the Wisconsin Innovation Awards (WIA)! This annual award is granted to companies and individuals developing groundbreaking ideas and driving innovation in the state of...

Upcoming Webinars: Putting Bacillus to Work

https://vimeo.com/1115971375?share=copy Bacillus bacteria are highly versatile, making them a great choice for formulating industrial, institutional, and consumer (IIC) cleaning products. During our upcoming webinar, technical support lead Jennifer Cray will use MDG...

Tips for Successful Microbial Scale-Up

Scaling up your microbial strain for commercial purposes is a highly complex process, and without the proper guidance, it can be hard to get it right. As your trusted CMO for custom microbial fermentation, we work with you to achieve your unique goals and drive your...

Meet MDG at SupplySide Global 2025

Heading to SupplySide Global in Las Vegas this year? So are we! On October 29 and 30, our human health expert will be walking the expo hall floor. Don’t miss your chance to connect in person and learn about how MDG can become your trusted probiotic ingredient...

Celebrating Our Expanded Capacity for Microbial Growth and Scale-Up

https://vimeo.com/1127921161?share=copy As a trusted provider of Bacillus-based solutions, we are passionate about continuous innovation to better serve our partners. After years of planning and hard work, we are thrilled to share that we celebrated the grand opening...

MDG at RAFT 2025: Insights on Innovative Microbial Manufacturing

https://vimeo.com/1119814916?share=copy MDG is excited to share that we will be exhibiting at the Recent Advances in Fermentation Technology (RAFT) Conference this year! Visit us November 9–12 at the Marriott Myrtle Beach Resort and Spa in Myrtle Beach, SC. We’ll be...

Biotifx®: Innovating Wastewater Solutions

Without the right support, launching and selling your biological wastewater treatment products can be a difficult task. Luckily, when you partner with MDG, you receive the necessary assistance and more through our Biotifx® Platform. Created specifically for value-add...

Inflammaging: How Probiotics Can Help

Healthy aging is an essential element of wellness for many consumers—in fact, in a NutraIngredients survey, 50% of people ranked healthy aging as an important goal. Unfortunately, there are a multitude of factors that may impede the healthy aging process. Recent...

Related News