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Caffeine, Tannins, and Polyphenols from Coffee Residues Bad for Mushroom Growing


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#1 spacecowboy

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Posted 14 January 2006 - 01:43 PM

... this not to say that coffee residues are bad in general, because they are highly nutritious for mushrooms. Spent coffee grounds have most of these bad compounds removed when making the drinkable coffee.

These bad compounds, especially caffeine, have a negative effect on mushroom growth and inhibit mycelium formation.

The above information comes from the Mushroom Growers' Handbook 2: Shiitake Cultivation Ch4, p92 (PDF 218Kb)

Below are attached more articles related to using coffee residues for mushroom production.

Attached Files



#2 Hippie3

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Posted 14 January 2006 - 03:22 PM

archive material for shittakes

#3 Invitro

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Posted 14 January 2006 - 05:08 PM

Caffeine also not good for growing sclerotia either

Caffeine, IBMX, and NaF all block sclerotial development and are expected to increase cAMP levels. Elevated cAMP levels appear to block early sclerotial development since sclerotial initials are not observed or are greatly reduced in number in cultures amended with cAMP. Developing cultures transferred to cAMP-containing medium before sclerotial initiation did not produce sclerotia, whereas cultures transferred after sclerotial initiation continued to develop mature sclerotia. Although cAMP regulates sclerotial development, the nature of this regulation remains uncertain. cAMP regulation may be indirect in that signaling through a cAMP-dependent pathway may stimulate filamentous growth, resulting in hyphae which fail to differentiate into sclerotia.

http://aem.asm.org/c.../full/64/7/2539

#4 Hippie3

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Posted 10 March 2006 - 09:36 AM

eh ?
what's this ?
i read a study that said caffeine helped sclerotia form.
now what am i 'sposed to think ?
:eusa_wall




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