Modified WL (Wallerstein Laboratory) Nutrient Medium for cultivation and enumeration of yeasts and bacteria in microbiological quality control, particularly in brewing and food-related applications.
WL Nutrient Medium, modified, catalogue No. 100610, is a specialized culture medium supplied by MilliporeSigma / Merck, designed for microbiological culture of yeasts and bacteria. A modified version of the classic Wallerstein Laboratory (WL) Nutrient Medium, this formulation has an increased pH and reduced glucose content to facilitate the growth of a broad range of microorganisms encountered in brewing, food and beverage quality control. It is used for isolation, enumeration and routine monitoring of microbial loads in raw materials and production environments.
Advantages
- Optimized for cultivation of yeasts and bacteria in microbiological control.
- Modified pH and glucose levels broaden the range of cultivable organisms.
- Suitable for use in food, beverage and brewing industry quality programs.
- Reliable performance supports routine microbial enumeration.
- Powdered formulation allows flexible preparation of culture plates or broths.
Technical specifications
| Medium type | Modified WL Nutrient Medium |
| Product form | Dehydrated powder |
| Applications | Cultivation of yeasts and bacteria for quality control |
| Suitable for | Yeasts and bacteria |
| pH (prepared) | 5.3–5.7 (37 g/L, 25 °C) |
| Solubility | 37 g/L in water |
| Bulk density | 730 kg/m³ |
| Typical use | Microbiological control in brewing and food & beverage industries |
| Storage conditions | 15–25 °C |
| Brand | Merck |
| Pack size | 500 g |
