by microbiologics | Sep 6, 2018 | Pharmaceutical
Performing growth promotion testing (GPT) on new batches of media is an essential task for all sterile and non-sterile pharmaceutical manufacturing laboratories. Your laboratory performs GPT regularly, but are you certain of what best practices auditors will look for...
by microbiologics | Jun 28, 2018 | Clinical, Food, Pharmaceutical, Water
The growth promotion test (GPT) can be a hassle, but it’s necessary for determining if a new batch of media is acceptable. Follow our best practices below to make your testing process as smooth as possible when using Microbiologics products to perform GPT. 1. Test in...
by Stanley Staphylococcus | Jun 21, 2018 | Clinical, Food, Pharmaceutical, Water
Dear Stanley, I use EZ-Accu Shot™ for growth promotion testing (GPT), and sometimes I don’t get counts within 50-200% of the count printed on the label. Is there something wrong with my media or the control? Sincerely, Beverly Fresno, CA Dear Beverly, Great question!...
by microbiologics | Apr 12, 2018 | Pharmaceutical
You’ve identified an organism in your environment. Now what? If you work in a non-sterile pharmaceutical manufacturing laboratory, chances are you’ve encountered this question. You know environmental monitoring doesn’t stop at detection, but what are the correct next...
by Laurie Kundrat | Dec 14, 2017 | Pharmaceutical
The U.S. Pharmacopeia (USP) created quite the challenge when it designed the growth promotion test (GPT) for selective media. Laboratories not only need to test new batches of media with less than 100 colony-forming units (CFU), the colonies must also grow on agars...
