Influence of Bacterial Interaction on Resazurin Reduction Times

Abstract
The speed of resazurin reduction by bacteria in reconstituted skim milk was found to be a function of total inoculum size, species involved, and interactions among different cultures present. A synergistic effect was demonstrated between different strains of Pseudomonas fluorescens. and between Bacillus sp. and Pseudomonas sp. The synergistic effects could be masked by using excessively large or extremely small inocula.