Merck, 1081900500, Thioglycollate broth

• Safer - Significant reduction of inhalation of toxic and allergenic substances resulting in fewer allergic responses. Less contamination of working tools and environment
• Accurate - No separation of components and no clumping, even under humid or warm conditions, ensure a uniform product with higher performance accuracy
• Fast - Rapid and uniform dissolution in water
• Easier - Easier handling and weighing due to the better flow properties. Media do not stick to the flask or container
• Reliable - Homogenous distribution of ingredients guarantees high reproducibility even if only small amounts of media are used.

GranuCult Thioglycollate Broth is a dehydrated microbiological culture medium for cultivating aerobic and anaerobic bacteria. Thioglycolic reducing chemistry lowers available oxygen in the prepared medium, enabling growth of oxygen-sensitive microorganisms, while a resazurin redox indicator provides a visual indication of oxygen exposure. The 500 g granular package is prepared at 29 g/L in water and reaches a specified pH of approximately 6.9–7.3 after autoclaving. It serves microbiological and pharmaceutical testing workflows that require a reducing growth environment. Correct preparation, heating, sterilization, cooling, and handling are important because excess aeration can alter the medium's redox conditions and affect culture interpretation.