Home | Community | Message Board


Zamnesia.com
Please support our sponsors.

Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Amazon Shop for: pH Test Strips

Jump to first unread post. Pages: 1
OfflineFerment
Stranger
Registered: 11/10/04
Posts: 99
Loc: NE USA
Last seen: 10 years, 5 months
peroxide breaks down to H20, no?
    #3368833 - 11/16/04 02:44 PM (12 years, 24 days ago)

If I remember my chemistry class, doesn't Peroxide, H202, break down fairly quickly into water (HO2) and Oxygen (O2) when not in an enclosed container? I might be wrong about the exact process, but I'm almost certain that it does break down quickly into water. If this is the case, why do we continually use H020 as a long-term antimicrobial agent? Though perhaps when we dunk in Peroxide, it gets far enough into the cake that it does not react w/ surrounding air. Any ideas? Chemists and Chem students, speak your minds.


Post Extras: Print Post  Remind Me! Notify Moderator
Invisiblederx
who run it
 User Gallery

Registered: 05/30/03
Posts: 2,459
Loc: dx/dt
Re: peroxide breaks down to H20, no? [Re: Ferment]
    #3368881 - 11/16/04 02:58 PM (12 years, 24 days ago)

yes h2O not HO2. H2o2 is a fairly cheap, easy to find oxidizing agent. The whole point of dunking is to oxidize any new organic material such as bacteria spores that may land during the procedure. I don't know exactly how long it takes for H2O2 to completly react but dunking is a very short process.


--------------------
better living through chemistry

OVERGROW the government!!

it's not a war on drugs, it's a war on personal freedom, ok, thats what it is.


Post Extras: Print Post  Remind Me! Notify Moderator
Offlinediscman1
journeyman
Registered: 08/24/04
Posts: 962
Last seen: 11 years, 11 months
Re: peroxide breaks down to H20, no? [Re: Ferment]
    #3368883 - 11/16/04 02:59 PM (12 years, 24 days ago)

It does break down, but not that quickly just by itself.

Heat, pH and contamination in the form of metals are what causes it to break down quickly.


Post Extras: Print Post  Remind Me! Notify Moderator
Offlineoddiseus
The PsychofunkFirefly

Registered: 10/05/04
Posts: 456
Loc: Doldrums & Faultlines
Last seen: 3 years, 1 month
Re: peroxide breaks down to H20, no? [Re: Ferment]
    #3368890 - 11/16/04 03:00 PM (12 years, 24 days ago)

H202 does break down into h20 and 02 but they add a catalyst that slows the reaction. If stored in a dark container that will also slow the reaction down. There is an enzyme that breaks down h202 they call it peroxidase its usually a bacteria. Heat can also cause the reaction as well. This is about 28 Kcals. I dont think you have that available in your house so don't worry about that one. If you dunked with peroxide only you would probably kill the mycelium and it would make no difference if it made it into the actual cake or not.


--------------------
Though you can't go back and make a new beginning. You can start today to make a new end.

Traveller, there is no path, paths are made by walking

If Jesus was jewish...Why does he have a mexican name??


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineFerment
Stranger
Registered: 11/10/04
Posts: 99
Loc: NE USA
Last seen: 10 years, 5 months
Re: peroxide breaks down to H20, no? [Re: derx]
    #3368917 - 11/16/04 03:07 PM (12 years, 24 days ago)

Quote:

derx said:
yes h2O not HO2.  H2o2 is a fairly cheap, easy to find oxidizing agent.  The whole point of dunking is to oxidize any new organic material such as bacteria spores that may land during the procedure.  I don't know exactly how long it takes for H2O2 to completly react but dunking is a very short process.





AAaaah. i was under the impression that dunking w/ peroxide solution was intended to cut down on contams. If its for oxidizing, that makes perfect sense. As for H2O not HO2, yes, i'm slow today :smile:


Post Extras: Print Post  Remind Me! Notify Moderator
Invisiblederx
who run it
 User Gallery

Registered: 05/30/03
Posts: 2,459
Loc: dx/dt
Re: peroxide breaks down to H20, no? [Re: Ferment]
    #3368929 - 11/16/04 03:11 PM (12 years, 24 days ago)

Oxidizing is how it cuts down the chances of contams. If something new gets on the substrate, the H2O2 will oxidize the organic material, killing it. Mycelium can withstand H2O2 without being disturbed too much.


--------------------
better living through chemistry

OVERGROW the government!!

it's not a war on drugs, it's a war on personal freedom, ok, thats what it is.


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineIGnosticAbhorI
Stranger-er

Registered: 11/06/04
Posts: 4,898
Last seen: 1 year, 1 month
Re: peroxide breaks down to H20, no? [Re: derx]
    #3368942 - 11/16/04 03:16 PM (12 years, 24 days ago)

hmm...so that means that i learned something, thankx! Things make more sense when you begin to understand them...


Post Extras: Print Post  Remind Me! Notify Moderator
Invisiblederx
who run it
 User Gallery

Registered: 05/30/03
Posts: 2,459
Loc: dx/dt
Re: peroxide breaks down to H20, no? [Re: IGnosticAbhorI]
    #3368970 - 11/16/04 03:21 PM (12 years, 24 days ago)

exactly, understanding concepts is the most important part of problem solving. That's why I hate my bio courses because we just memorize information and write it back down on tests. In chemistry we actually learn the concepts behind things.


--------------------
better living through chemistry

OVERGROW the government!!

it's not a war on drugs, it's a war on personal freedom, ok, thats what it is.


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineIGnosticAbhorI
Stranger-er

Registered: 11/06/04
Posts: 4,898
Last seen: 1 year, 1 month
Re: peroxide breaks down to H20, no? [Re: derx]
    #3369005 - 11/16/04 03:29 PM (12 years, 24 days ago)

That's so true! I'm in chem and that's what i love about it. Specifics, details and putting it all together....gl


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineIamthewalrus
every evening Idied and everynight I wasreborn
Male User Gallery

Registered: 03/24/04
Posts: 3,744
Loc: Ontario
Last seen: 8 years, 1 month
Re: peroxide breaks down to H20, no? [Re: derx]
    #3369061 - 11/16/04 03:40 PM (12 years, 24 days ago)

spores die mycelium lives...I've always said h202 is a great PERVENTATIVE! but it does nothing once you have mold the same as it won't kill mushroom mycelium...also dunking is NOT a short process its usually done for around 12 hours and its to replenish the mycelium with water...mushrooms are 90% water...so if you want healthy shrooms it only makes sense to give the substrate all the water it needs :wink: a lil h202 helps keep it contam free

btw h202 is GREAT for ear infections...if you feel your ear getting sore like you have an infection coming on take a syringe fill it with a mixture of water and h202 and just fill up your ear and let it fizz lol...it tickles and it gets rid of the infection before it even starts

just a random fact from your friendly neighbourhood walrus


Post Extras: Print Post  Remind Me! Notify Moderator
Invisiblederx
who run it
 User Gallery

Registered: 05/30/03
Posts: 2,459
Loc: dx/dt
Re: peroxide breaks down to H20, no? [Re: Iamthewalrus]
    #3369101 - 11/16/04 03:49 PM (12 years, 24 days ago)

When i say short i mean Relatively short. Relative to the 1-2 month process from inoculation to fruiting. H2O2 wont completly decompose in this amount of time. I wouldnt call this a long process since it can be completed in a day.


--------------------
better living through chemistry

OVERGROW the government!!

it's not a war on drugs, it's a war on personal freedom, ok, thats what it is.


Post Extras: Print Post  Remind Me! Notify Moderator
Offlinediscman1
journeyman
Registered: 08/24/04
Posts: 962
Last seen: 11 years, 11 months
Re: peroxide breaks down to H20, no? [Re: derx]
    #3369114 - 11/16/04 03:53 PM (12 years, 24 days ago)

Hydrogen peroxide damages all organic matter, including mycelium. Oxygen free radicals are pretty intense. You can fight trichoderma with H2O2, but it's probably not worth the time.

It just doesen't cause significant damage and the benefits far outweigh the risks when used at concentrations of 10 or 20 parts water to 1 part 3% H2O2.


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineHambo
Limey

Registered: 09/23/04
Posts: 497
Loc: UK
Last seen: 9 years, 9 months
Re: peroxide breaks down to H20, no? [Re: discman1]
    #3369160 - 11/16/04 04:05 PM (12 years, 24 days ago)

I dunked some suspected bacterial contam cake in 1.5% (actual conc. not 9% % something percent etc) h202 soln. for ages. Until it stopped fizzing basically.. :smile:.

Then cased it. it seems to be doing ok, healthy enough..but the mycelial growth into the casing is more fluffy than rhizomorphic.

Suppose I should have just chucked it.. it's not like I dont have shrooms coming out of my ears here.. but I like experimenting.


--------------------


Post Extras: Print Post  Remind Me! Notify Moderator
Jump to top. Pages: 1

Amazon Shop for: pH Test Strips

Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

Similar ThreadsPosterViewsRepliesLast post
* peroxide and millet llamaboy 915 11 01/17/04 06:34 PM
by llamaboy
* Peroxide in the Fruiting Chamber (& Elsewhere) sudont 1,466 7 03/30/06 07:30 AM
by Citric
* Q's About Using Hydrogen Peroxide mad__hatter 2,673 3 11/29/06 04:20 PM
by mad__hatter
* PEROXIDE YellowSubmarine 557 4 10/24/03 04:19 AM
by Shamanorrhea
* Peroxide Concentration in Agar JeRiKo1 871 11 04/22/04 04:49 PM
by stara
* need a good peroxide agar recipe thinkn 1,204 6 02/26/09 03:57 AM
by No_Life_G33k
* help! i'm misting with peroxide!
shirley knott
1,262 9 04/09/03 07:42 PM
by Pantherina
* hydrogen peroxide sensitive to light? psilocyben 1,825 9 04/05/05 02:38 PM
by Prisoner#1

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Magash, Shroomism, george castanza, Prisoner#1, RogerRabbit, Citric, total, FooMan, 13shrooms, stonesun, EvilMushroom666, cronicr, PussyFart
729 topic views. 14 members, 60 guests and 43 web crawlers are browsing this forum.
[ Toggle Favorite | Print Topic | Stats ]
Search this thread:
MRCA Tyroler Gluckspilze
Please support our sponsors.

Copyright 1997-2016 Mind Media. Some rights reserved.

Generated in 0.052 seconds spending 0.003 seconds on 14 queries.