Culturing Yoghurt??

[Ian]

Hi all,
My Bio teacher is very keen to culture some YOGHURT bacteria (Acidophilus, etc) We can not get it to grow on a standard "Nutrient Agar" plate.
Does anybody have an agar recipe that will grow Yoghurt bacteria in a way that can be seen easily??

regards
Ian

[Whspa]

I used to add some powdered milk to the nutrient agar mix, and although it never really dissolved well we always got good growth.
This year I bought Milk Agar powder from Southern Biological but haven't had to use it yet.

Carol

[Ocean Breeze]

Yes, it grows well on a tomato agar plate

[rae]

Hi Ian,

I think I remember many moons ago a discussion about this and someone used a tomato agar. I didn't get a recipe but maybe if you did a search??? I know not much help but it may trigger a memory!!

Lorrae

[rae]

Ian
I found the thread Making agar for culturing bacteria from yogurt. Hope this helps!!

Lorrae

[Ocker]

G'Day, My bio mob wanted to do this, than they complained because they could not see the white growth on white milk agar.
If anyone has reciepe for tomato agar I would love it Thanks!

[Ocean Breeze]

This is the thread Ocker

http://www.chemtalk.com.au/viewtopic.php?f=16&t=811

[bindi]

When working in the Ento labs we would add a teaspoon of yoghurt (bought in supermarket, any plain type with the bacterias you are looking for L Bacillius, Acid etc no need to grow your own) to the milk solution, lots of stirring, put a cotton tea towel over the top the leave it room temp for a day, then place in fridge.

[Ian]

This is the thread Ocker

http://www.chemtalk.com.au/viewtopic.php?f=16&t=811

Thanks for that Rainbow Sky. That recipe looks interesting. I will give it a go tomorrow.

regards
Ian