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KMID : 0981820100300020133
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Korean Journal of Laboratory Medicine
2010 Volume.30 No. 2 p.133 ~ p.137
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Development and Evaluation of the Quick Anaero-system-A New Disposable Anaerobic Culture System
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Yang Nam-Woong
Kim Jin-Man
Choi Gwang-Ju
Jang Sook-Jin
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Abstract
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Background: We developed a new disposable anaerobic culture system, namely, the Quick anaero-system, for easy culturing of obligate anaerobes.
Methods: Our system consists of 3 components: 1) new disposable anaerobic gas pack, 2) disposable culture-envelope and sealer, and 3) reusable stainless plate rack with mesh containing 10 g of palladium catalyst pellets. To evaluate the efficiency of our system, we used 12 anaerobic bacteria. We prepared 2 sets of ten-fold serial dilutions of the 12 anaerobes, and inoculated these samples on Luria-Bertani (LB) broth and LB blood agar plate (LB-BAP) (BD Diagnostic Systems, USA). Each set was incubated in the Quick anaero-system (DAS Tech, Korea) and BBL GasPak jar with BD GasPak EZ Anaerobe Container System (BD Diagnostic Systems) at 35-37℃ for 48 hr. The minimal inoculum size showing visible growth of 12 anaerobes when incubated in both the systems was compared.
Results: The minimal inoculum size showing visible growth for 2 out of the 12 anaerobes in the LB broth and 9 out of the 12 anaerobes on LB-BAP was lower for the Quick anaero-system than in the BD GasPak EZ Anaerobe Container System. The mean time (±SD) required to achieve absolute anaerobic conditions of the Quick anaero-system was 17 min and 56 sec (±3 min and 25 sec).
Conclusion: The Quick anaero-system is a simple and effective method of culturing obligate anaerobes, and its performance is superior to that of the BD GasPak EZ Anaerobe Container System. (Korean J Lab Med 2010;30:133-7)
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KEYWORD
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Anaerobic bacteria, Culture techniques, Culture media
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