1. Purchasing bacterial cultures, I have looked at Southern Biol and see they have "slopes" and "broths" I think I would need to buy the "broth"??? , can someone explain the difference please.
2. When I make nutrient agar, do I have to sterilise this before adding to petri dishes (we have sterile, plastic dishes)
3. Would the use of sterile swabs be ok to spread the bacterial culture on the plates
Has anyone used the petrifilm plates available from southern biol and if so with what success??
Thanks everyone and any more hints to help me with this would be appreciated
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