Isolation medium for detecting Escherichia coli O157 and preparation method thereof
A technology for separating medium and content, applied in the field of microbial detection, can solve problems such as interference with Escherichia coli, inconsistent fermentation rate of sorbitol, etc., and achieve the effect of optimizing content and reducing false positive rate
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Embodiment 1
[0034] This embodiment provides a kind of separation culture medium that detects Escherichia coli O157, every 1000mL medium contains peptone 5g, rhamnose 5g, inositol 5g, sorbitol 18g, peptone 20g, agar 15g, No. 3 bile salt 1.5 g. Neutral red 0.03g, crystal violet 1mg, potassium tellurite 2.5mg, cefixime 0.05mg, 5-bromo-4-chloro-3-indole-β-galactoside 0.02g.
Embodiment 2
[0036] This embodiment provides a kind of separation culture medium that detects Escherichia coli O157, every 1000mL medium contains peptone 2g, rhamnose 2g, inositol 2g, sorbitol 10g, peptone 20g, agar 15g, No. 3 bile salt 1.5 g. Neutral red 0.03g, crystal violet 1mg, potassium tellurite 2.5mg, cefixime 0.05mg, 5-bromo-4-chloro-3-indole-β-galactoside 0.01g.
Embodiment 3
[0038] This embodiment provides a kind of separation culture medium that detects Escherichia coli O157, every 1000mL medium contains peptone 9g, rhamnose 9g, inositol 9g, sorbitol 15g, peptone 20g, agar 15g, No. 3 bile salt 1.5 g. Neutral red 0.03g, crystal violet 1mg, potassium tellurite 2.5mg, cefixime 0.05mg, 5-bromo-4-chloro-3-indole-β-galactoside 0.015g.
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