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To: blueyon

If you have ever smelled butyric acid you will never forget it.


8 posted on 01/16/2017 10:04:54 AM PST by SVTCobra03 (You can never have enough friends, horsepower or ammunition.)
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To: SVTCobra03

From an article on butyric acid:

Everyone that smells it seems to identify it slightly differently, but descriptions fall out of the: ‘pooh, farts, sick, smelly feet, sweat, gone-off curry, sour milk’ general category of bad smells. Occasionally someone will generously suggest parmesan cheese, but really, it’s not that nice.

It’s not a smell that goes away, either. It’s a stench that just keeps on giving. One of my students managed to get a tiny drop of it on a lab bench and, despite trying to clean it up, the smell lingered for weeks. In fact it was quite interesting. Most people could smell it for about two weeks (as in, they walked into the room and immediately said “ugh, what’s that smell?!”) After that fewer and fewer people immediately reacted, but every now and then someone would walk in and complain of a horrible stink, which by then no one else was really noticing. I assume these were individuals with unfortunately (in this situation) sensitive noses, perhaps with great futures ahead of them as chefs, sommeliers and perfumers. Although some fairly recent research has suggested that ability to recognise smells has more to do with training than innate ability. Still, who nose? (Hehe)

So what is butyric acid and why is it so stinky? It’s name actually comes from the Latin word butyrum (or buturum) meaning butter, because it was first extracted from rancid butter by the French chemist Michel Eugène Chevreul (bet he loved his job). It’s a fatty acid, which means it’s one of the building blocks of fats. The fat molecule made from butyric acid makes up 3-4% of butter, and tied up in this form it’s completely innocuous. However once those fats start to break down, the evil butyric acid starts to be released.

It’s generally found in dairy products, and is a product of anaerobic fermentation (that is, fermentation that happens in the absence of oxygen), hence the links to butter and parmesan cheese. Anaerobic fermentation also happens in the colon. Hence, ahem, the pooh smell. Oh yes, and butyric acid is also what gives vomit that distinctive, smell-it-a-mile-off, odour.


28 posted on 01/16/2017 10:19:10 AM PST by Rennes Templar (Sea levels are rising- from liberal tears.)
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To: SVTCobra03

Here abouts, it was called the “smell of MONEY” A local company would lose a little frequently and it stunk up the whole town


34 posted on 01/16/2017 10:33:02 AM PST by bert (K.E.; N.P.; GOPc;WASP .... Macroagression melts snowflakes)
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To: SVTCobra03

I worked in a stockroom when I was in college. The bottles of butyric acid were marked ‘Warning! Stench!’.


35 posted on 01/16/2017 10:35:03 AM PST by Black Agnes
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To: SVTCobra03

Felonious assault and attempted poisoning.
All in attendance are within their ^defensive^ rights to ELIMINATE the threat.
Sounds like a fine situation for a bloody beat-down.


38 posted on 01/16/2017 10:40:36 AM PST by Cletus.D.Yokel (Catastrophic, Anthropogenic Climate Alterations: The acronym explains the science.)
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To: SVTCobra03

This is what Muslims do, is it not?


69 posted on 01/16/2017 11:46:32 AM PST by Crucial
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