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Clostridium perfringens toxins absorbed on filter paper--a simple method for sample conservation
1Institute of Animal Hygiene and Environmental Hygiene, Freie Universität Berlin.
Berliner Und Munchener Tierarztliche Wochenschrift
|February 1, 1997
Summary
Filter paper effectively preserved Clostridium perfringens toxins for 74 days across various temperatures. This method offers a simple approach for conserving and transporting samples for enterotoxaemia diagnosis.
Area of Science:
- Veterinary Microbiology
- Animal Toxicology
Background:
- Enterotoxaemia, a severe disease in livestock, is caused by toxins from Clostridium perfringens types C and D.
- Accurate diagnosis relies on detecting these toxins in post-mortem samples, which can degrade rapidly.
- Effective sample preservation and transport are crucial for reliable diagnostic outcomes.
Purpose of the Study:
- To evaluate the stability of Clostridium perfringens type C and D toxins absorbed onto filter paper.
- To determine the feasibility of using filter paper as a preservation and transport medium for diagnostic samples.
Main Methods:
- Clostridium perfringens type C and D toxins were absorbed onto filter paper.
- Samples were dried and stored at different temperatures: room temperature (18-20°C), 37°C, 4°C, and -20°C.
- Toxin identification was performed using Enzyme Immunoassay (EIA).
Main Results:
- Type-specific toxins were accurately identified using EIA for up to 74 days post-absorption.
- Toxin stability was maintained across the tested storage conditions, including room temperature.
- Filter paper absorption proved effective for preserving toxin integrity.
Conclusions:
- Absorption onto filter paper is a viable method for conserving Clostridium perfringens toxins.
- This technique facilitates the simple and effective transport of post-mortem samples from suspected enterotoxaemia cases.
- Filter paper offers a practical solution for field sample collection and laboratory analysis.