Anaerobic Jar System NAJS-205 – Oxygen-Free Microbial Cultivation Equipment

What Is Anaerobic Jar System NAJS-205?

Anaerobic Jar System NAJS-205 is a sealed incubation system designed to grow obligate anaerobes and microaerophilic organisms by removing oxygen from the internal chamber. It is used in microbiology laboratories for culture-based testing, microbial identification, and contamination analysis.

Why Use Anaerobic Jar System NAJS-205? 

This system is used when microorganisms cannot survive in oxygen-rich environments.

Key Outcomes:

• Enables accurate anaerobic microbial growth

• Ensures reproducible lab results

• Supports regulatory compliance (ISO, GMP)

• Simplifies batch-based microbial testing

Result: Accurate and consistent microbiological analysis

Who Should Use This?

• Pharmaceutical QC laboratories

• Clinical microbiology labs

• Food safety testing facilities

• Research & academic institutions

When Should You NOT Use This?

• Continuous anaerobic workflow → Use anaerobic chamber

• Industrial-scale production → Use bioreactors

• Automated atmospheric control → Use controlled gas systems

How Does Anaerobic Jar System NAJS-205 Work? 

1. Place inoculated culture plates inside the jar

2. Add gas-generating sachet

3. Seal the chamber airtight

4. Oxygen is absorbed and CO₂ released

5. Indicator confirms anaerobic condition

6. Place jar in incubator for microbial growth

Key Benefits 

• High-capacity (18–20 plates per cycle)

• No electricity required

• Easy to operate and maintain

• Compatible with standard incubators

• Reusable and cost-effective

Product Snapshot

• Model: NAJS-205

• Capacity: 18–20 Petri dishes

• Method: Gas sachets / chemical / vacuum

• Type: Oxygen-free cultivation system

• Warranty: 1 Year

Technical Specifications

• Capacity: 18–20 plates (90 mm)

• Material: Polycarbonate / Stainless Steel

• Oxygen Removal: Gas-generating sachets

• Indicator: Anaerobic strips

• Incubation: Compatible

• Power: Not required

Applications with Outcomes

Anaerobic Jar vs Alternatives

Use Anaerobic Jar System NAJS-205 when:

• Batch testing is required

• Medium to high sample volume

• Simple setup needed

Use Anaerobic Chamber when:

• Continuous workflow required

• Advanced research applications

Use CO₂ Incubator when:

• Cell culture (not anaerobic)

Why Choose Anaerobic Jar System NAJS-205 Over Other Models?

• Higher capacity than NAJS-203/204

• Better for high-throughput labs

• Cost-effective vs anaerobic chambers

Frequently Asked Questions 

1.What is Anaerobic Jar System NAJS-205  used for?

   It is used to cultivate oxygen-sensitive microorganisms under controlled anaerobic conditions in laboratory environments.

2.How does it remove oxygen?

  It uses gas-generating sachets that absorb oxygen and release CO₂ inside a sealed chamber.

3.How long do anaerobic conditions last?

   Typically up to 72 hours depending on system configuration.

4.Can it be used in an incubator?

   Yes, it is fully compatible with standard laboratory incubators.

5.Is it suitable for food testing?

   Yes, it is widely used for detecting anaerobic contamination in food samples.

Typical Use Cases

• Anaerobic bacterial culture

• Pharmaceutical microbial testing

• Food contamination analysis

• Clinical diagnostics

Compliance & Standards

• GMP (Good Manufacturing Practice)

• ISO 11133 (Culture media)

• ISO 7218 (Microbiology testing)

Internal Links 

• Anaerobic Culture Equipment

• Anaerobic Chambers

• GasPak Systems

• Guide to Anaerobic Cultivation

Quick Summary

Anaerobic Jar System NAJS-205 accommodates up to 36 Petri dishes (90–100 mm) arranged in three stacks of 12 dishes each. It establishes anaerobic conditions within 2 to 4 hours using gas generation systems. The transparent PMMA construction, stainless steel clamp, and O-ring sealing system ensure secure operation while allowing continuous visual monitoring of cultures.