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BS: Any suggestions for the Human trials?
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Subject: Any suggestions for the Human trials? From: Patrish(inactive) Date: 27 Apr 01 - 06:38 AM Read this in the New Scientist
Assessing Rectal Gases in Dogs U.K. researchers derive a successful recipe for reducing odor By Ricki Lewis
It has long been known that a little hydrogen sulfide (HS) contributes a lot to the distinctive odor of intestinal gas. Researchers at the Waltham Centre for Pet Nutrition in Leicestershire, U.K., report a series of experiments that confirms this wisdom and validates a treatment approach for reducing the malodorous fumes from one's canine.1 The successful recipe combines activated charcoal, which sequesters HS in its nooks and crannies; zinc acetate, which binds the gas; and an extract of the yucca plant, which already enjoys a reputation for quenching the odor of pig and poultry feces.
The participants in the double-blinded, crossover study were one golden retriever, five Labradors, and two English mastiffs. In some trials, each received a treat that included the three ingredients, as well as a placebo treat in others. In the in vitro investigation component, the researchers collected dog feces within 15 minutes of defecation, weighed it, and added the material to phosphate buffer. The resulting slurry was added to bottles with deformable and removable tops, and an agent was added to kill bacteria that would otherwise feast on the pungent contents. The researchers measured the pressure of the emitted gas and converted this into volume. A colorimetric assay determined the concentration of HS in parts-per-million (ppm).
But the dogs weren't finished after pooping. For five hours, for five consecutive days, each animal wore a jacket that held a perforated tube over the anus. The jacket also held a pump containing a sensor that measured the concentration of HS every 20 seconds. From this get-up, data on the number of episodes, their frequency, and the concentration of HS went to a computer for analysis. An episode was defined as a concentration of HS exceeding 1 ppm, which is the lower level at which a person detects an emission. To assess frequency, the researchers calculated the mean interval free time (MIFT), with frequency defined as any "flatulence-free interval" exceeding 20 seconds. They also calculated the "human perception of malodor" on a scale of 1 to 5 as "no odor (1), slightly noticeable odor (2), mildly unpleasant odor (3), bad odor (4), and unbearable odor (5)."
Results were encouraging for those with gassy pets. The in vitro studies revealed that eating the loaded treats had no effect on the total volume of gas produced, but it significantly lowered the HS content. The in vivo experiments also indicated an improvement in the percentages of episodes rated as four (bad) or five (unbearable) as being significantly decreased, and percentage of episodes rated as two (slightly noticeable) was significantly increased when dogs were fed treats containing the three agents." The researchers call for further investigation of this olfactory-offending problem. Perhaps the tests can be extended to breeds such as the Boston bull terrier or the pug dog, which are notorious for their unpleasant gaseous emissions. Or cats. Patrish
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST,Roger the skiffler Date: 27 Apr 01 - 06:41 AM Don't look at ME! RtS (we always blamed the dog!) |
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Subject: RE: BS: Any suggestions for the Human trials? From: gnu Date: 27 Apr 01 - 07:04 AM If I could get some of those treats into Spaw, the wrasslin match might be back on at the Tavern. |
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Subject: RE: BS: Any suggestions for the Human trials? From: CarolC Date: 27 Apr 01 - 11:51 AM But did the researchers take the Spaw factor into consideration? Take poor old Pavlov, for instance. He was just conducting experiments to measure saliva production in dogs. That conditioned response thing was just an accidental and unexpected byproduct. Did they make sure Spaw wasn't anywhere near the dogs while their gasseous emmisions were being measured? I would think just his presence in the same county could stimulate a response. |
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Subject: RE: BS: Any suggestions for the Human trials? From: mousethief Date: 27 Apr 01 - 11:54 AM Do they have mouse treats yet? |
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Subject: RE: BS: Any suggestions for the Human trials? From: gnu Date: 27 Apr 01 - 12:02 PM I suppose, in time, they will make mouse treats available for terriers and the like, but the dogs used in the study above are not, usually, ratters. |
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Subject: RE: BS: Any suggestions for the Human trials? From: mousethief Date: 27 Apr 01 - 12:06 PM However they have been known to eat gnu stew. |
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Subject: RE: BS: Any suggestions for the Human trials? From: gnu Date: 27 Apr 01 - 12:11 PM oooo. Cranky today ? C'mon, smile - TGIF !!! |
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Subject: RE: BS: Any suggestions for the Human trials? From: mousethief Date: 27 Apr 01 - 01:57 PM bloody Pollyannas. |
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST,#1 Date: 27 Apr 01 - 02:01 PM Get rid of the sulpher in the dog's food, and like cows you'll get CH4 instead of H2S. Attach baloon to anus and collect. I burns good, but isn't healthy to breath. Put sulpher back in in the form of methyl mercaptain (like the gas company used to do), and you can smell it again. In fact, almost all compounds of sulpher that don't have metals in them (except hydrogen) stink like h--l. |
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Subject: RE: BS: Any suggestions for the Human trials? From: mousethief Date: 27 Apr 01 - 02:02 PM What ingredient(s) in the dog's food contain sulphur? Can we give the dog all the nutrients it needs without dragging in sulphur? Alex, who is not a chemist |
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Subject: RE: BS: Any suggestions for the Human trials? From: Eric the Viking Date: 27 Apr 01 - 02:11 PM Many protiens contain sulphur-egg yolk is a good one, full of it-hence H2S smell from bad eggs. Pat-give Bill some of that stuff for next week!!!!!!!!!! |
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Subject: RE: BS: Any suggestions for the Human trials? From: lady penelope Date: 27 Apr 01 - 02:18 PM It's easy really, you want to get of foul odours from your prize pet? You get a champagne crk, a mallet and some ky jelly........................Nuf sed TTFN M'Lady P. |
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Subject: RE: BS: Any suggestions for the Human trials? From: mousethief Date: 27 Apr 01 - 02:50 PM Don't dogs need proteins in their diet? Are some proteins less smell-inducing than others? Lady P, um, no thanks. :-) Alex |
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Subject: RE: BS: Any suggestions for the Human trials? From: Micca Date: 27 Apr 01 - 03:59 PM Yeah Alex, they do unfortunately one of the essential Amino Acids is sulphur containing..Cystine this is easily reduced in the body to Cysteine , this reaction releases sulphur into the digestive tract where in the acid conditions, H2S is produced..and hence the smell.. |
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Subject: RE: BS: Any suggestions for the Human trials? From: mousethief Date: 27 Apr 01 - 04:11 PM So I guess it's charcoal treats all around.... |
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST,#1 Date: 27 Apr 01 - 04:15 PM Mousethief/Alex, for a dog to put out H2S with no sulpher in, it must be a nuclear reactor or equivalent. |
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Subject: RE: BS: Any suggestions for the Human trials? From: CarolC Date: 27 Apr 01 - 06:52 PM That's probably the missing key to the mystery of cold fusion. Don't you think? |
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST,#1 Date: 27 Apr 01 - 07:18 PM Phize, not fuse. |
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Subject: RE: BS: Any suggestions for the Human trials? From: CarolC Date: 27 Apr 01 - 07:30 PM No, GUEST,#1, that's the other end.
phiz \'fiz\n [by shortening & alter. fr. physiognomy] (1688) : FACE
--My Webster's
Anyway, I meant phusion (fusion), not fission. Cold fusion. Check it out. |
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST,#1 Date: 27 Apr 01 - 09:20 PM My mistake. Sulpher seems to be a favorite in the fusion process to make gold. The recipies at the click forgot the dog. Good luck with those recipies.
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST,#1 Date: 27 Apr 01 - 09:27 PM Forgot to ask CarolC what whe fuses to make sulpher? There are probably a lot of possibilites, because one website on nuclides gives sulpher with atomic weights of 26 to 49 inclusive (normal = 32). [Atomic number = 16 = sulpher only] |
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Subject: RE: BS: Any suggestions for the Human trials? From: CarolC Date: 28 Apr 01 - 12:01 AM Well, my memory's a little rusty on this. We may need Amos or Bruce O. to help us out. Or maybe Trillian what's her name.
I think a cold cup of tea had something to do with somebody getting a breakthrough about how to accomplish a nuclear reaction with cold fusion rather than fission, which, as we all know, would solve all of the earth's energy problems, and wouldn't pose the dilemmas that are caused by nuclear fission. And I think this might have been what made the 'infinite improbability drive' possible. I could be wrong about this.
But this post...
Mousethief/Alex, for a dog to put out H2S with no sulpher in, it must be a nuclear reactor or equivalent. ...made me think, "if it could be done using a cold cup of tea, maybe it could be done using a dog." |
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Subject: RE: BS: Any suggestions for the Human trials? From: CarolC Date: 28 Apr 01 - 12:10 AM Oh yeah... Trillian = Trish McMillen (sp?) |
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST Date: 28 Apr 01 - 12:23 AM 'cold fusion' in spite of the hullabloo it caused, proved to be a farce. |
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Subject: RE: BS: Any suggestions for the Human trials? From: CarolC Date: 28 Apr 01 - 12:28 AM ...so did the 'infinite improbability drive'. |
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST,Bruce O. Date: 28 Apr 01 - 12:59 AM To fuse sulpher you take CO2 from greenhouse gas or fizz water and squeeze those Os together hard. 16OMsub>2<.sub> -> 32S by fusion, and we end up with CS, a free radical. Free radicals are lonely and quickly find a willing partner, like hydrogen, to make smelly HCS, thioformaldehyde. There's lots to be seen on Google under 'thioformaldehye'. The original high resolution spectrum and structure of it are on the 4th page, so just click near the bottom on the one with the name 'J. W. C. Johns' [D. Phil. Oxon] to find it, paper #8 in the file.) |
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Subject: RE: BS: Any suggestions for the Human trials? From: mousethief Date: 28 Apr 01 - 01:08 AM Granted the sulphur must come back out, but it needn't necessarily do so in the form of a gas -- if it is bound to the right other things, it might be rendered relatively odorless. After all, dog food (input of this process) doesn't smell like dog farts. Alex |
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST,Bruce O. Date: 28 Apr 01 - 01:04 PM Sorry, I lost a 2. That thioformaldehyde ahould have been H2CS. |
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST,#1 Date: 28 Apr 01 - 02:12 PM There were only 111 postings on the cat farts thread. Are we trying to better that here with dog farts? |
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Subject: RE: BS: Any suggestions for the Human trials? From: GUEST,Karen Date: 28 Apr 01 - 02:46 PM The burning question for me is how one of these scientists goes about explaining what it was he does for a living to, let's say, a first date? I'm thinking this would be a serious hurdle to building any romantic relationship... |
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Subject: RE: BS: Any suggestions for the Human trials? From: mousethief Date: 28 Apr 01 - 03:42 PM Clearly this is a line of work one could only go into after one was married. Alex |