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Invisiblequestion_for_joo
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Registered: 04/30/03
Posts: 1,591
gas exchange
    #2159170 - 12/04/03 08:56 PM (13 years, 2 months ago)

if carbon dioxide is heavier than air and CO2 is what is given off as byproduct by fungus growth then why don't we colonize our jars just slightly upside down to allow the C02 to trickle out naturally?


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OfflineLateForTheFuture
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Re: gas exchange [Re: question_for_joo]
    #2159178 - 12/04/03 09:00 PM (13 years, 2 months ago)

Actually, most people do flip the jars upside down to aid in this when growth is nearing completion, as it helps speed it up.


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Offlinekalyx
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Registered: 12/04/03
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Re: gas exchange [Re: question_for_joo]
    #2159181 - 12/04/03 09:01 PM (13 years, 2 months ago)

there is a tek for that , but I don't know where I saw it. I think it was on PF's old site. I remember you were supposed to have the jars at a tilt and still have them filtered. I don't trust this, as I loath losing a single cake. I use a small air blower to suck the stale air out of my container, the fresh air comes in through a filter.


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Invisiblemicro
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Re: gas exchange [Re: kalyx]
    #2159201 - 12/04/03 09:07 PM (13 years, 2 months ago)

Jars will stall on the bottom occasionally -- this is most likely the reason.  You make a good point, though -- the mycelium will grow fine if the jars are upside-down the whole time.  The only problems I would anticipate is maybe water leaking through the holes or mycelial growth slowing due to reduced CO2 (mycelium can fixate CO2 and it grows faster when there is CO2 present.)  It's an interesting idea, though :wink:

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Micro


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OfflineAeolus1369
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Re: gas exchange [Re: micro]
    #2480181 - 03/29/04 04:19 PM (12 years, 10 months ago)

"mycelium can fixate CO2 and it grows faster when there is CO2 present."

Wait, you mean fix C02 like plants to form carbohydrates? I think you might want to double check this...lemme know if you find anything out but if I remember my metabolic biochemistry, only plants have the necessary enzymes (e.g. rubisco) to carry out carbon fixation.

--Aeolus


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Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

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