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Thallium
Stranger


Registered: 01/25/10
Posts: 35
Loc: CA
Last seen: 11 years, 1 month
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Amatoxin contamination?
#13627948 - 12/13/10 06:38 PM (13 years, 2 months ago) |
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Do any of you know if what wikipedia says about not putting poisonous amanitas in the same container as edible mushrooms is based on real information?
The reason I'm asking is cause I went back to my friscosa spot today and picked some more then went to check on my chanterelle spot. I didn't find any chanterelles, but I did come across several beautiful Amanita phalloides. Me being a toxicology student studying plant and fungal poisons, I collected two of them and brought them home. Meanwhile, my friscosas were sitting in a paper bag on top of the amanitas for the 20 minutes it took to walk back home. Is there any chance that the friscosas could have been contaminated with amatoxins? I'd hate to throw out my friscosas, but I'd also hate to require a liver transplant from eating contaminated shrooms.
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Oreganic
Connoisseur of Life


Registered: 02/08/10
Posts: 1,807
Loc: Orygun
Last seen: 5 years, 11 months
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Re: Amatoxin contamination? [Re: Thallium]
#13628005 - 12/13/10 06:51 PM (13 years, 2 months ago) |
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Eek. I wish I could provide you with better information, but this is actually a thought that has been on my mind lately - I've even thought of starting a thread about it. I am curious myself, but it really seems like a bad idea to be putting A. phalloides in the same container with anything you will be consuming. I look forward to hearing a more trusted opinion.
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LanLord
Stranger


Registered: 01/07/10
Posts: 1,763
Loc: San Mateo, Ca. USA
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Re: Amatoxin contamination? [Re: Oreganic]
#13628075 - 12/13/10 07:01 PM (13 years, 2 months ago) |
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Take this with a grain of salt, but I've read where the spores do not contain amatoxins.
That said, if I could find other actives, I'd find a great place to toss the current ones so they can assist next years crop.
-------------------- Good judgment comes from experience, and a lotta that comes from bad judgment.
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falcon



Registered: 04/01/02
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Re: Amatoxin contamination? [Re: Thallium]
#13628752 - 12/13/10 09:02 PM (13 years, 2 months ago) |
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putting them in a bag is considered another container, unless the bag was soaking wet, I don't think there's any way that there could be any transference of amatoxins
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Thallium
Stranger


Registered: 01/25/10
Posts: 35
Loc: CA
Last seen: 11 years, 1 month
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Re: Amatoxin contamination? [Re: falcon]
#13628889 - 12/13/10 09:32 PM (13 years, 2 months ago) |
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Quote:
falcon said: putting them in a bag is considered another container, unless the bag was soaking wet, I don't think there's any way that there could be any transference of amatoxins
The bag was dry to begin with but after a while the moisture from the friscosas began soaking through so it was slightly damp by the time I got home.
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falcon



Registered: 04/01/02
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Last seen: 13 hours, 49 minutes
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Re: Amatoxin contamination? [Re: Thallium]
#13632306 - 12/14/10 03:17 PM (13 years, 2 months ago) |
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don't think you'd have any transference, but I don't know for sure.
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groople
Registered: 01/21/10
Posts: 401
Last seen: 9 years, 3 months
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Re: Amatoxin contamination? [Re: falcon]
#13632397 - 12/14/10 03:35 PM (13 years, 2 months ago) |
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It shouldn't be a problem. Problematic amatoxin doses are measured in the mg's range, and concentrations of amatoxin in phalloides are not THAT high. You're not going to transfer mg's of substance when it's in two different bags, let alone mg's of amatoxin. I don't know what phalloides actual concentration is offhand, but galerinas only have like 1.5mg amatoxin per gram of dry weight. Unless an entire mushroom somehow diffused through your bag, you're golden.
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Primal Call
Earth Mage



Registered: 09/05/10
Posts: 2,766
Loc: Here until here
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Re: Amatoxin contamination? [Re: Thallium]
#13632689 - 12/14/10 04:37 PM (13 years, 2 months ago) |
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I personally dont think you have anything to worry about. Just last week I had death cap sitting in the same basket as blewits, chanterelles, and oysters. the only separation being a sycamore leaf and a vine rootlet i took home to transplant. myself and two others ate all the chants and the blewits more than two days ago with no ill effect.
of course, if you want to be absolutely safe, just toss em... you can always find more especially if you tend your active patch alone.
hope this helps.
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ToxicMan
Bite me, it's fun!


Registered: 06/28/02
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Re: Amatoxin contamination? [Re: Thallium]
#13633025 - 12/14/10 05:40 PM (13 years, 2 months ago) |
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There can't be more than a few milligrams of spores on your contaminated mushrooms, so there can't be more than a few micrograms of amatoxins. Lethal doses of amatoxins happen when you have people eating at least a full cap of one of the deadly mushrooms. A few micrograms won't have a noticeable effect.
All of this assumes that the contamination consists of some spore powder or other tiny particles. You can always wash your other mushrooms to get any of that contamination off.
It's not widely talked about, but there are also trace amounts of amatoxins in several common edible mushroom species. Probably the best known one is Boletus edulis, which can actually give a positive Meixner test.
Happy mushrooming!
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