Sulfur Oxidizing Bacteria (SOB) Broth


Bacterial Growth Media for the Detection of Sulfate Oxidizing Bacteria.


Part Number: SOB-%

Physical Characteristic: This aerobic media is light purple in color with some white precipitants (salts).

Positive Reaction: A positive vial will show a color change from light purple to grey, green and yellow.   It will also show the precipitation of more elemental sulfur (yellow to white precipitant) or sulfur-containing salts due to bacterial metabolism. TIP: Inoculating extra air every other day may accelerate the growth rate.


  • Biotechnology Solutions’ Sulphur Oxidizing media has been designed to identify the presence of Sulfur Oxidizing Bacteria that could belong to the following Genera: Acidiothiobacillus spp., Thiothrix spp., Bacillus spp., Pseudomonas spp., Micrococcus spp., among others.


  • After inoculation of your sample, please incubate our media at 28⁰C ± at 2⁰C. It could take from 1 week up to 4 weeks to show a positive result depending on the original concentration of your sample.

Additional information

Weight N/A
Dimensions N/A

0.5%, Custom, 1%, 3%, 5%, 7%, 10%, 15%, 20%


Case (288 Vials), Field Case (12 Vials), Flat (96 Vials)