Fuel, rotten meat & other ugly smells: what causes it?

[wordtree]

I was referring to molecules such as vanillin, actually. language is funny.

The aromatic you're speaking of refers to chemistry (think of benzene, a six membered unsaturated ring); the term 'aromatic' used as synonym for scent, aroma, smell etc. has nothing to do with that.

 

[G.O. Joe]

Reading an article (Factors influencing the yield and the quality of hemp (Cannabis sativa L.) essential oil) where Swiss were smelling essential oil from different strains at different times, there was this:
"The results of the chemical analysis showed no significant relationship between any detected compound and the relative quality marks"
http://www.internationalhempassociation.org/jiha/jiha5107.html

No one has published finding indoles in cannabis.

 

[Sam_Skunkman]

Flavonoids don't smell and burn to ashes when smoked...
Butyrate esters and related esters have already been mentioned earlier ...
Indoles? LDS is a psychoactive drug, not a perfume !
Bacteria in the essential oil, hope not! On an annual healthy plant also not likely but they might contribute during the curing process.

LDS???
-SamS

 

[amannamedtruth]

I appreciate every aroma from clean cannabis. except hay.

 

[G.O. Joe]

I've suspected in other threads that everyone so heavily invested in the terpenes of Cannabis is barking up the wrong tree, so this is tossed out there as evidence that the pharmacology and scent of modern cannabis may not be as clear as some say - buds of Sensi's Northern Lights were analyzed in 2000 and were said to be 2% pyrazines.

https://www.icmag.com/ic/showpost.php?p=4904445&postcount=69
They are very likely an alkyl pyrazine and a methoxy pyrazine, tentatively identified as 3,5-dimethyl-2-propylpyrazine and 2-methoxy-3-(1-methylethyl)pyrazine, respectively. The definitive determination of their chemical identity requires further study. The alkylmethoxypyrazines have a phenomenally low olfactory threshold (0.002 p.p.b.) and produce one of the most powerful odours known to man. The possible function of pyrazine in Cannabis and its possible influence on man is, at present, unknown. It would be of interest to investigate the possible effect of their presence on the action of T.H.C. (tetrahydrocannabinol), C.B.D. (cannabidiol) and CB (cannabinol).

The unusual urine of an unusual canine - the maned wolf - is supposed to smell exactly like pot. Several pyrazines are in it.

www.google.com/patents/US7326706
"Pyrazine modulators of cannabinoid receptors"
Bristol-Myers Squibb owns a lot of patents on a lot of modulators of cannabinoid receptors chemicals.

 

[mofeta]

Wow that's very interesting. Thanks for posting that.

Thanks also for the paper you linked previously that shows how blunt our analytical instruments are. Someday they will be able to predict what the essential oil expert would say about the sample in general, and maybe someday even be good enough to replace a human expert, maybe even out in the field.

 

[Only Ornamental]

LDS???
-SamS

Arrrrggghhh... I meant LSD!
Why are people always citing my typos?

 

[Only Ornamental]

@G.O. Joe: Thanks! Really interesting and a quite unique finding!
That made me thinking and searching and I found for example THAT one about wine (and pleasant aromas) or THIS one about ladybird beetle odour. Maybe, we should really start to focus also on minor but highly aromatical constituents?
I will have to dig a bit trough non-terpenoid smells and odours .

 

[JointOperation]

from wat i read over 300 terpenes have been found in cannabis..

 

[Only Ornamental]

from wat i read over 300 terpenes have been found in cannabis..

No offence, but how is that supposed to help me?

 

[OreoGrows]

funny you say that about trashing the rubber smell plants i have a gdp with a hint of burnt rubber smell, i kinda like it. strongest purp i ever smoked, done at 55 days every time, half amber trichs at day 60

 

[Daub Marley]

The unusual urine of an unusual canine - the maned wolf - is supposed to smell exactly like pot. Several pyrazines are in it.

Apparently it smells very similar because cops were trying to find somebody smoking pot at the zoo housing the Manned wolf. A lot of things smell sort of like pot, but few can fool several officers. This is really interesting. Does its urine always smell like that? Does it depend on the diet or other factors?

Maybe, we should really start to focus also on minor but highly aromatical constituents?

I agree it seems that in this case the dominant smell is a very minor constituent and that is somewhat opposite of the way we think about it. Sort of like one instrument in a symphony that is as loud as a pin drop yet we can hear it over the rest of the instruments. There must be some sort of evolutionary advantage to be able to detect these scents at such low concentration.

 

[devilgoob]

I think I'll smell like hay, specifically to alert to the smell of breaking down straw grasses and that things like to eat, like things that eat grasses and those animals must have good stomachs that do alot to be able to process that, and grasses and other dumb plants like that have very little energy in them, so you know the manure is going to be a lot and good and broken down plant matter. Hopefully they will come by and shit more.

I also think it smells like a skunk scent or something similar when it begins flowering, maybe tuh mimic a skunk. You can barely smell it, but animals smell it.

Rotting meat is perfect thinks a Fox! nom nom nom ETC. seeds all over. SHIT PEE and pee for the plant. Plus the Fox will hang out and after shit itself and passing out or whatever, maybe it'll get up and shit or piss again? And the Fox and other animals do leg kicks and the seeds spread more.

 

[Only Ornamental]

Dude, stop it! My breakfast starts moving the wrong way!
ROFLMAO

 

[Daub Marley]

Could cannabis have evolved a defensive strategy of mimicking the scent of predatory animal urine? Or are these foul smells just a general deterrent to certain animals? I refuse to believe that they are just coincidental.

 

[Haymann]

I was wondering what might cause the fuel, diesel, rotten meat & dead skunk smells and maybe also other nasty odours... couldn't find anything and I know of no terpene with such kind of ugly smell.
I'd be grateful if anyone could shed some light on that.

Right now, my Ciskeis smell like the Cali-O from last year did: like overripe, rotten orange peel with hints of rancid motor oil and maybe something like turpentine. I suppose the orange and turpentine comes from racemic limonene. I don't like it that much though... Unfortunately, I never paid any attention on whether cannabis synthesises (D)-(+), (S)-(-), or racemic limonene. Anyone any idea?

let's talk about Terpines. those wonderful chemical interactions which bombard our olfactory glands with the super pungent smells of rotten meat, dead skunk, baby poop, burnt rubber, and stinky tofu.

But OTOH, there are truly floral, fruity, spicy, piney terpine profiles too.

I love those piney strains as much as I like Sierra Nevada TORPEDO Extra IPA.

 

[Only Ornamental]

let's talk about Terpines. those wonderful chemical interactions which bombard our olfactory glands with the super pungent smells of rotten meat, dead skunk, baby poop, burnt rubber, and stinky tofu.

But, there are truly floral, fruity, spicy, piney terpine profiles too.

I love those piney strains as much as I like Sierra Nevada TORPEDO Extra IPA.

LOL, do you know that 'terpine' is either an old synonym for 'terpin' (a monoterpene) or a French cough medicine? Suppose you meant 'terpenes'... Anyway, the original question is which constituent/-s cause it and not which family of compounds might eventually be responsible for these smell nuances .
Chances are high that it's a specific mixture of some mono- and sesquiterpenes but it may well be something else likely with a way lower 'olfactory threshold'.
But thanks anyway for participating .
What is that TORPEDO Extra IPA (IPA = isopropyl alcohol?)?

 

[mofeta]

What is that TORPEDO Extra IPA (IPA = isopropyl alcohol?)?

Sierra Nevada and hops go hand in hand. What began as a crazy idea scribbled in a pub eventually became our newest year-round hop bomb, Torpedo Extra IPA. The first beer to feature our “Hop Torpedo”—a revolutionary dry-hopping device that controls how much hop aroma is imparted into beer without adding additional bitterness. Torpedo Extra IPA is an aggressive yet balanced beer with massive hop aromas of citrus, pine, and tropical fruit.

Sierra Nevada was one of the pioneers in the craft brewing movement in the US that has changed the face of beer-drinking here from pure crap to approaching European standards. The very best of our craft brewers are as good as an average Belgian, but nowhere near the quality of the transcendentally delicious stuff from the various monasteries.

 

[Cannavore]

IPA's smell like Afgooey to me. Especially the earthy, piney, tropical fruit smelling and tasting ones.

Lagunitas Sucks = Afgooey in a beer bottle

 

[Only Ornamental]

A beer? ROFL!!
Really seems there's more common in cannabis and hops than just botanical relationship. I can't judge cause beer makes me literally through up immediately but that doesn't matter, I don't like the bitter taste anyway.