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How long does Erythromycin last in an agar plate


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#1 cat1082

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Posted 29 January 2010 - 08:53 AM

I am supplementing my agar plates with erythromycin and I left my yeast growing overnight on them. The next day, as I had hoped, I found no growth. But by the evening there did appear to be a small amount of growth. I wondered if the erythromycin had degraded after 16 hours like ampicillin does and the yeast could grow again?

Thanks,

Cat.

#2 klinmed

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Posted 31 January 2010 - 12:42 AM

I am supplementing my agar plates with erythromycin and I left my yeast growing overnight on them. The next day, as I had hoped, I found no growth. But by the evening there did appear to be a small amount of growth. I wondered if the erythromycin had degraded after 16 hours like ampicillin does and the yeast could grow again?

Thanks,

Cat.

Hope this helps

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#3 cat1082

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Posted 01 February 2010 - 02:29 AM

That's perfect, thanks very much!

#4 genfren

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Posted 29 July 2015 - 05:52 AM

Thanks klinmed, that is a nice and useful paper. However, it describes the stability of antibiotics in agar stored at 4C, rather than typical growth incubator temperatures of 30-36C. 






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