If I want to obtain isolates of actinomycetes which produce novel biologically active secondary metabolites, what is the best media for cultivation of these actinomycetes to help them produce biologically active secondary metabolites?
Please help me if you can.
Why nutrient agar is not utilized to cultivation of Actinomycetes? Is it inhibitory for its growth? Need reference.
Starch casein agar (SCA) medium is commonly employed for growing actinomycetes. You can optimize medium components for the better production of secondary metabolites. In my opinion, marine actinomycetes may produce some novel drugs rather than their terrestrial counterparts because of their high adaptation in the sea. You can also collect samples from different locations, for instance, deep sea, sea shore etc for discovering novel species or compounds.
All the very best
Probably you can use the ISP3 or IPS4 media or soil extract media (if your actinomycetes are of soil origin). You can also try out some stress medium that contains soya meal, molasses, starch etc.
Hi,
For cultivation of actinomycetes use starch caesin media or actinomycetes isolation agar but for the production of secondary metabolites from them i would prefer SS broth as it enhance the production as well as extraction of bioactive compounds seems to be good. you can also optimise the SS medium by designing its composition according to your need which will not only makes your work novel but also helps to exploit the actinomycetes diversity a bit more.
And, i also agree with the above answers that try to explore marine actinomycetes as it has much more potential than terristrial one.
gud luck
Hi,
If you serach about noval biometabolites , sources of isolation must be marine habitates. You can use starch caesin medium and adject pH equal to pH of isolation sources
good luck
Dear Mohamed ahmed Sebak, Mansooreh Jami (University of Natural Resources and Life Science Vienna) had a similar question some time ago:
"What is a suitable fermentation broth for Actinomycete?"
There are lots of valuable hints in the discussion, maybe you will find some points that are of value to you there.
Just search the profile of Mansooreh Jami, click on contributions, and find the concerning question.
All the best,
Andreas
Dear Mohamed ahmed Sebak
In any laboratory, there is a couple of media that is generally used as the production media e.g. ISP2. However, the selected media might not be good for all actinomycetes.
So, it is no exact question for this answer.
But the good example is to search natural product paper e.g. Journal of Antibiotics for their production media and trying with your strain.
All the best,
Jirayut
Why nutrient agar is not utilized to cultivation of Actinomycetes? Is it inhibitory for its growth? Need reference.
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