Sealed 250g package of Psychrophilic Count Agar powder with dairy icon

Psychrophilic Bacterium Count Agar (MPC) – Milk Plate Count Agar for Dairy Testing

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Product Overview

Psychrophilic Bacterium Count Agar (MPC), also known as Milk Plate Count Agar, is a dehydrated microbiological culture medium specifically formulated for the enumeration of psychrophilic bacteria and aerobic spores in dairy products.

This medium is widely used in food microbiology laboratories for quality control and hygiene monitoring of milk and dairy products, especially where low-temperature–growing microorganisms are of concern.


Principle of the Method

Psychrophilic bacteria are capable of growing at low temperatures and may cause spoilage of refrigerated dairy products.
After inoculation and incubation under appropriate conditions, colonies are counted to determine the total psychrophilic bacterial count and aerobic spore count.

Key Features

  • Designed for dairy microbiology testing
  • Suitable for psychrophilic bacteria enumeration
  • Supports aerobic spore count determination
  • Dehydrated powder for easy preparation
  • Stable performance and reproducible results

Applications

  • Psychrophilic bacterial count in milk and dairy products
  • Aerobic spore count determination
  • Dairy quality control and hygiene monitoring
  • Food microbiology testing laboratories

✅ Product Specifications

  • Product Name: Psychrophilic Bacterium Count Agar (MPC)
  • Alternative Name: Milk Plate Count Agar
  • Form: Dehydrated powder
  • Package Size: 250 g
  • Storage Condition: Room temperature
  • Shelf Life: 3 years
  • Final pH: 7.0 ± 0.1 (25°C)

✅ Composition (per liter)

ComponentQuantity
Pancreatic Digest of Casein5.0 g
Yeast Extract2.5 g
Dextrose1.0 g
Skim Milk Powder1.0 g
Agar15.0 g

All ingredients are listed exactly as provided. No functional descriptions added.


✅ Preparation Instructions

  1. Suspend 24.5 g of the medium in 1,000 mL of distilled water.
  2. Heat to boiling with frequent agitation until completely dissolved.
  3. Dispense into suitable containers.
  4. Sterilize by autoclaving at 121°C for 15 minutes.
  5. Cool and mix well before use.

Note:
Due to the presence of skim milk powder, a small amount of white precipitate may appear after sterilization. This does not affect performance.

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