Wallerstein Laboratory (WL) Nutrient Broth (WLN)
CAT No.: AS-1321
Wallerstein Laboratory Nutrient Broth (WLN) is a liquid microbiological medium designed for the isolation, detection, and differentiation of yeasts, molds, and bacteria commonly found in brewing, winemaking, and fermentation industries. This non-solid version of WLN provides a versatile option for liquid culture work, microbial enrichment, and quality control testing.
Key Features
Differential liquid medium for yeasts, bacteria, and molds
Optimized for brewery, winery, and beverage microbiology
Supports detection of beer spoilage bacteria, wild yeasts, and lactic acid bacteria
pH 5.5 ± 0.2 at 25 °C – simulates beverage environments
Available in custom pack sizes for research or industrial testing
Applications
Quality control in beer, wine, cider, and kombucha production
Detection of spoilage microorganisms in beverages
Microbial enrichment and culture maintenance
Fermentation microbiology research in universities and industry labs
Technical Specifications
Form: Dehydrated broth medium
Final pH: 5.5 ± 0.2 (at 25 °C)
Storage: Store sealed in a cool, dry place (15–25 °C)
Shelf life: Up to 4 years (unopened, properly stored)
Order Wallerstein Laboratory Nutrient Broth (WLN) from Ausamics for reliable performance in brewery, winery, and food microbiology testing.
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Wallerstein Laboratory (WL) Nutrient Broth (WLN)
WL Nutrient Medium
Approximate Formula Per Liter
Yeast Extract............................... 4.0 g
Pancreatic Digest of Casein... 5.0 g
Dextrose..................................... 50.0 g
Monopotassium Phosphate. 0.55 g
Potassium Chloride........... 425.0 mg
Calcium Chloride................ 125.0 mg
Magnesium Sulfate............ 125.0 mg
Ferric Chloride...........................2.5 mg
Manganese Sulfate................. 2.5 mg
Agar.............................................. 15.0 g
Bromcresol Green.................. 22.0 mg
























