What's the difference between peptone and tryptone? - (Jun/29/2010 )

Hi All,
To grow Agrobacteria I need to prepare YEB medium which has peptone as one of the ingredients. I have Tryptone N1 (Google says it is casein peptone) Can I use it as "peptone" for YEB medium. What is the difference between peptone and tryptone?

Just now i saw this in another blog:
The peptones are derived from the digestion of meat or milk, but tryptone is derived from the digestion of milk only. For agrobacterium, these would derive a greater portion of their nutrition from animal cells (meat) than milk. So I'd think you'd get better results using the peptone as is called for in the YEB medium directions - although if you have enough extra plates and culture, you could try both and see how they would comapre - you might just discover something by accident!


Hope this helps

I think you got reply in another blog.........

macroman on Jun 30 2010, 11:15 PM said:

Yes, I've got that reply in yahoo answers. Anyhow, thank you very much for taking your time!