Ask an Expert with Sarah Melendez - USP Microbiology
Overview
Eurofins Microbiology Laboratories, Inc. is made up of a network of microbiology labs located all throughout the US to support microbiological testing needs. Each lab has dedicated customer support so you get answers fast. Our Ask an Expert Series showcases our scientists from around the country and answers questions customers frequently ask. Videos are published weekly on all of social media platforms.
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Ask an Expert Series - Topic #14
When should a suitability or preparatory test be performed for samples undergoing USP methods?
"For USP Microbiological test methods, suitability and preparatory analyses are performed to ensure not only the validity of the method for your product, but also to decrease the chance of false negatives. Due to the complex nature of ingredients and compounds found in dietary supplement and probiotic products and ingredients, there are often matrix interference issues with common enumeration and pathogen detection methods. Performing USP suitability or preparatory testing, is a way to ensure validity of the method for your products. The industry standard is to perform this testing on any USP compliant or cGMP products that are being tested for the first time." - Sarah Melendez of Eurofins Food Division in Ithaca, NY.
