Phenol Red Tartrate Agar 100G

Phenol Red Tartrate Agar is recommended for identification and differentiation of Salmonella species on the basis of tartrate utilization. This medium was originally formulated by Brown et al and further modified by Jordon and Harmon, for the differentiation of Enterobacteriaceae especially Salmonella species. It can also be used to differentiate V. parahaemolyticus (positive) from Aeromonas species (negative). Tartrate utilization (fermentation) yields an acidic reaction, which is indicated by the yellow colour formation at the bottom of the tube.