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Alternatives to Malt Extract


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#1 krongi

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Posted 31 October 2022 - 06:58 PM

So I want to start some agar plates and almost every recipe I see calls for light malt extract. I haven't been able to find it locally and I would prefer not to shop amazon or another online retailer. 

 

Is there anything that I can replace the malt extract with? I'm not sure where I saw it but I believe someone has a tek doing it with the water from a boiled potato. Will a sweet potato work or would the sugar content be too high for the myc?

 

It may have also been a LC tek, possibly not an agar tek. Either way, I'd love to hear how anyone might make due without using it.

 

Edit:

I've done agar before but the plates weren't too successful. I just left out the LME iirc.


Edited by krongi, 31 October 2022 - 07:00 PM.


#2 coorsmikey

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Posted 31 October 2022 - 08:09 PM

Check out this book and see if it helps you out a bit, I attached the PDF book.Attached File  The_Media_Recipe_Book.pdf   302.79KB   43 downloads


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#3 krongi

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Posted 31 October 2022 - 11:40 PM

Thanks coors! I think you helped me with some great info a long time ago. Your name sounds very familiar, and judging by your post count, you've been here for a minute.



#4 Arathu

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Posted 01 November 2022 - 06:30 PM

The classic Media Recipe Book? Sweet!

 

Potatoes and honey agar rocks IME....PDA too....

 

Get down a baseline of learning how to make a good firm agar and then experiment your ass off.....

 

I just order my stuff from a supply house....

 

A


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#5 Myc

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Posted 02 November 2022 - 10:00 AM

I've used potatoes - but I've never tried sweet potatoes. Reds, Russets, and Yukon Golds all work just fine from my experience.

 

Another novel agar to make is String Bean Agar. I did some experiments with this media and it worked just like everything else. No problems. I'm pretty sure the recipe is in the link Coorsmikey provided.


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#6 Severian

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Posted 03 November 2022 - 03:46 PM

I'm using molasses right now as a sugar source.




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