Bacterial Endotoxin Tests

When products come into direct or indirect contact with the human body, endotoxin contamination can pose health risks. Therefore, products must be analyzed using a Bacterial Endotoxin Test (LAL Test) before market release.

What are Bacterial Endotoxins?

Bacterial endotoxins are toxic structures found in the cell walls of Gram-negative bacteria, released upon cell death. These toxins can induce the following reactions in the human body:

• Fever
• Inflammation
• Hypotension
• Septic shock in severe cases

These reactions necessitate ensuring that sterile products are free from endotoxins.

What is the LAL Test?

The LAL (Limulus Amebocyte Lysate) Test is an endotoxin assay performed using a specific reagent derived from the blood cells of horseshoe crabs (Limulus Polyphemus). This test is one of the most reliable methods applied according to international standards for determining the endotoxin content of medical devices, parenteral drugs, implants, and biological products.

Standards for Bacterial Endotoxin Testing

Bacterial endotoxin detection is conducted in accordance with the following international standards:

• USP 161: Evaluation of Endotoxin Limits in Medical Devices
• EP 2.6.14: Endotoxin Testing Procedures within the European Pharmacopoeia
• USP 85: Endotoxin Analysis Methods for Pharmaceutical Products
• ISO 11737-3: Endotoxin Test After Sterilization of Medical Devices

These standards ensure the accuracy of testing methods, product safety, and regulatory compliance.

Bacterial Endotoxin Test (LAL): USP 161, EP 2.6.14, USP 85, ISO 11737-3