105910 Maltose monohydrate, Merck

Maltose is a reducing sugar consisting of two glucose molecules joined by an α(1→4) glycosidic bond. In microbiology, it is frequently used to study the nutritional and fermentation profiles of various bacteria and fungi. When added to a base medium (such as Phenol Red Broth), the fermentation of maltose by a microorganism leads to the production of acid, which is visually detected by a change in the pH indicator's color. This product is manufactured to meet the rigorous quality standards required for consistent laboratory performance.

Advantages

• High Purity: Specified for microbiological applications with controlled levels of heavy metals and consistent hydration.
• Standardized Performance: Each batch is tested for suitability in microbiology to ensure reliable fermentation results.
• Easy Visualization: Provides clear, reproducible color transitions when used in media containing pH indicators.
• Versatile Nutrient: Acts as an essential energy source for the cultivation of a wide range of fastidious and non-fastidious organisms.
• Long-term Stability: The monohydrate form is stable and easy to handle in a laboratory setting.

Instructions for use

Dissolve the required amount of Maltose monohydrate in distilled or deionized water to reach the desired concentration (typically 5–10 g/L depending on the protocol). It is highly soluble in water (approx. 470 g/L). For use in culture media, add the sugar to a base medium before sterilization. Note: To prevent caramelization or excessive degradation of the sugar, sterilization should be performed by filtration or by autoclaving at a lower temperature/shorter time (e.g., 115 °C for 10–15 minutes) if possible. After inoculation, incubate at the temperature appropriate for the target microorganism.

Interpretation of Results

Technical specifications

Available packaging options