Skim Milk Powder (AS-1349) | Microbiology Grade Casein Hydrolysis Test
Skim Milk Powder
High-protein nutrient base for microbiology, fermentation & enzymatic assays
Skim Milk Powder is a low-fat, protein-rich dairy-derived nutrient widely used in microbiology and biotechnology. It provides casein, whey proteins, lactose, and essential minerals, supporting growth of fastidious microorganisms and enabling proteolysis, fermentation, and spoilage studies.
🧬 Key Benefits
- Rich in casein & whey proteins
- Excellent for enzyme activity studies
- Supports fastidious organisms
- Ideal for fermentation workflows
- Low fat → minimal interference
🔬 Product Overview
Skim Milk Powder is a versatile microbiological nutrient source derived from defatted milk. It is commonly used as a substrate for proteolytic activity testing and as a growth supplement in culture media, particularly for lactic acid bacteria and other nutritionally demanding organisms.
Its composition of casein proteins, lactose, and minerals makes it ideal for evaluating microbial metabolism, enzyme production, and spoilage processes in food, environmental, and industrial microbiology.
🧫 Applications
- Preparation of media for lactic acid bacteria (LAB) and fastidious microbes
- Detection of proteolytic (casein hydrolysis) activity
- Fermentation studies involving lactose metabolism
- Milk spoilage and dairy microbiology research
- Industrial microbiology and enzyme production screening
⚙️ Key Features
- High protein content: supports microbial growth and enzymatic activity
- Lactose-rich composition: ideal for fermentation studies
- Low fat content: minimizes interference in assays
- Highly soluble: suitable for liquid and solid media
- Versatile use: applicable across research, QC, and teaching labs
📊 Composition (per 100 g)
| Component | Typical Content |
|---|---|
| Proteins (Casein + Whey) | 34–36 g |
| Lactose | 50–52 g |
| Minerals | 6–7 g |
| Fat | < 1.0 g |
| Moisture | < 5.0 g |
pH (1% solution): 6.5–6.8 at 25°C
🧭 Preparation
- Dissolve required quantity (typically 10% w/v) in purified water
- Heat gently with stirring until fully dissolved
- Incorporate into media formulations as needed
- Sterilize at 121°C for 15 minutes if used in microbiology
❄️ Storage
- Store at 15–25°C in a dry environment
- Keep tightly sealed and protected from moisture
- Avoid exposure to humidity and light
- Shelf life: up to 12 months under proper storage
🧬 Related Products
Casein hydrolysis detection medium
Lactic acid bacteria cultivation
General nutrient enrichment
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For laboratory and industrial use only. Not for food, pharmaceutical, or therapeutic use.