White Paper

Water Activity Measurements And Microbial Contamination In Pharmaceutical Products

By Allison Alix, Application Scientist, Lighthouse Instruments

petri dish sample laboratory

Non-sterile pharmaceutical products, including oral solid dosages (OSDs) such as tablets, capsules, and softgels, are subject to microbiological examination prior to release and during stability testing. USP <61> and USP <62> describe the methods for enumeration and specification of these microorganisms, respectively. While the tests described in these chapters cannot be eliminated from protocol completely, USP <1112>, Application of Water Activity Determination to Nonsterile Pharmaceutical Products, suggests that water activity determination can be used to reduce the need for frequent microbial limit testing and screening, especially for those products with water activities below 0.75. By controlling the water activity of a product, beginning with its raw materials, it is possible to greatly reduce, or even eliminate, the viability of microbial growth.

VIEW THE WHITE PAPER!
Signing up provides unlimited access to:
Signing up provides unlimited access to:
  • Trend and Leadership Articles
  • Case Studies
  • Extensive Product Database
  • Premium Content
HELLO. PLEASE LOG IN. X

Not yet a member of Pharmaceutical Online? Register today.

ACCOUNT SIGN UP X
Please fill in your account details
Login Information
I'm interested in newsletter subscriptions.
ACCOUNT SIGN UP

Subscriptions

Sign up for the newsletter that brings you the industry's latest news, technologies, trends and products.

You might also want to: