Food Testing


As the world population continues to expand, there is increasing demand for food testing to verify the safety and authenticity of food products. Food testing ensures that food products are pathogen-free and safe for consumption. In addition, there are increasing global regulations on import and labeling of foods containing genetically modified organisms (GMO), for which testing is required to ensure compliance. Increasingly, molecular biology methods such as quantitative PCR assays and advanced DNA sequencing methods are the fastest and most reliable ways to detect pathogens and identify food components. Both analysis methods rely on the highest quality extracted DNA to achieve reproducible results.

We can help you achieve faster and more reliable results in food pathogen testing, authentication and GMO testing. Just ask!

Email Us

Plant and Food DNA and RNA Extraction Protocols

Promega DNA and RNA extraction products are used to purify nucleic acid from a wide variety of food sample types. Our collection of plant and food application notes contains protocols and example data from many food sample types and includes example manual, automated and plate-based methods.

Search Application Notes
methods for DNA or RNA extraction from plant and food

Food Pathogen Testing


It is estimated that 1 in 6 people in the US get sick from food-borne diseases, and 3,000 people die every year as a result. Eating food contaminated with harmful pathogens, such as Salmonella or Listeria, is the main cause of illness. Therefore, testing food for pathogens is crucial for monitoring food safety. Advanced PCR-based methods are the fastest and most reliable ways to detect pathogens in food and require high-quality extracted DNA for precise, accurate results.



Detect Bacterial DNA in Food

Read this article to learn how to detect bacterial DNA with high sensitivity in a variety of food samples.

Read Article

Purify Bacterial gDNA from Food

Download this poster to learn about Maxwell® RSC protocols for purifying Gram+ and Gram genomic DNA from food samples.

Download Poster


Interested in Food Pathogen Testing?

View Products

Food Authentication


Food identity testing is important for ensuring labeling accuracy; e.g., identifying the species present in a processed meat mixture or animal feed. PCR-based methods are an easy and accurate way to look for species-specific DNA sequences in food items. The choice of DNA purification method, as well as the choice of PCR targets, can greatly influence success in food analysis, depending on the specific foodstuffs and target DNA involved.



Advances in Food Testing

View this webinar to learn about identifying food ingredients and detecting genetically modified events in food samples.

View Webinar

Purifying DNA from Food

Watch this video to learn about automated purification of DNA from food samples.



Interested in Food Authentication?

View Products

GMO Testing


The European Union (EU) and many other countries have policies for labeling or excluding products containing material from GMO. GMO testing confirms the amount of GMO present in plants, seeds or foods and ensures compliance with EU and global regulations. PCR-based GMO detection methods are commonly used and rely on high yields of DNA with high purity for reproducible performance.



Automated gDNA Isolation

Read this blog to learn about the development of the Maxwell® RSC PureFood GMO and Authentication Kit for automated extraction of genomic DNA from seeds.

Read Blog

Extracting RNA-Free DNA

This article describes a protocol for extracting high-quality, RNA-free DNA from plant and food samples for GMO testing.

Read More


Interested in GMO Testing?

View Products