Box 53 Buffers

The pH of a batch culture may change from its intended value as a result of an organism's metabolic activity. Buffers are added to a medium in order to minimise the effect of these changes. Such buffers must be non-toxic to the organism in question, and phosphate buffers are commonly used in microbial systems. Phosphate combines with hydrogen ions or hydroxyl ions to form respectively a weak acid or a weak base:

This reduces the impact on the pH of the medium.

Was this article helpful?

0 0
How To Win Your War Against Bronchitis

How To Win Your War Against Bronchitis

Sick And Tired Of Your Constant Cough? Is Your Bad Immune System Leading You To The Path Of Fever And Sore Chest? You Sure Have A Reason To Panic BronchitisThere Is Always A Way Out And, This Is It Finally Discover Some Of The Most Effective Tips That Can Curb Bronchitis, And Its Repeated Bouts Learn How To Keep The Chronic Cough, And Sore Chest Away Breathe Free, And Feel The Whiff Of Fresh Air, With No Hassles

Get My Free Ebook

Post a comment