"Pesticides such as paraquat and rotenone that have been associated with Parkinson’s disease also leave that pathological signature in rodents." - oh good, it looks like these are still widely in use.
Widely used chemical strongly linked to Parkinson’s disease
151–160 of 344 posts
Re: Widely used chemical strongly linked to Parkinson’s disease
#152>"But in the 20th century, TCE was used for many purposes, including making decaffeinated coffee" ... This is exactly the reason I never touched decaf coffee until I found Swiss water process (SWP) decaf. It never made sense to me to use hydrocarbon solvents in a food application
I'm very curious about SWP. How does it taste compared to good light roasted single origins?
Based on some light reading just now:
- SWP is a means of treating green coffee beans pre-roast. They can be roasted any which way afterwards.
- Any type of bean can be treated this way.
- The process is pretty specific in targeting just caffeine. In removing caffeine though, the total dissolved solubles in the end coffee will be lower for the same amount of beans. Probably a lessor body unless you use more.
Interested to hear from someone who has tried it.
Re: Widely used chemical strongly linked to Parkinson’s disease
#153Re: Widely used chemical strongly linked to Parkinson’s disease
#154Earlier quoted context omitted.
This is Hacker News, so you should probably include a "/s" to indicate sarcasm, because otherwise you'll get a lot of people agreeing with you.
I would say yes few would agree but fortunately HN is still not filled with late stage capitalist idiots.
People get buttmad and downvote you for pointing out manmade global extinction events and daily death tolls from pollution. HN isn't immune from these shitbags. This site has a lot more capitalists than environmentalists.
Re: Widely used chemical strongly linked to Parkinson’s disease
#155When you drink your coffee without caffeine in your 30 for escaping a harm from caffeine, but end up with Parkinson in your 60+.
It's worth noting that almost all decaffeinated coffee is made using water as the solvent. Even 30 years ago this was true.
This isn't really true, there are a few different methods to decaffeinating coffee beans:
"Like regular coffee, decaf coffee begins as green, unroasted beans. The hard beans are warmed and soaked in liquid to dissolve and remove the caffeine in one of four ways: using water alone, using a mixture of water and solvents (most commonly methylene chloride or ethyl acetate) applied either directly or indirectly, or using water and “supercritical carbon dioxide.”"
Re: Widely used chemical strongly linked to Parkinson’s disease
#156Widely used chemical *(that was generally phased out in the 70s) linked to Parkinson's. Still important, but you don't need to start searching product labels in 2023 for it.
from the article:
> TCE is highly persistent in soil and groundwater; inhalation through vapor from these hidden sources is likely the prime route of exposure today. However, it’s detectable in many foods, in up to one-third of U.S. drinking water, and in breast milk, blood, and urine.
the groundwater route still seems pretty troubling
Re: Widely used chemical strongly linked to Parkinson’s disease
#157Earlier quoted context omitted.
If I already know TCE is dangerous and need to be avoided I might not need to read the article or I could if I need further information. But if I need to click to get the basic information it's clickbait.
Could the article be primarily written for people who don’t know about TCE?
They would read it if TCE is in the title.
But so all are forced to read it because Parkinson concerns everybody.
Why not simply "Widely used TCE strongly linked to Parkinson's disease"
Key message in the title, further information in the article.
Re: Widely used chemical strongly linked to Parkinson’s disease
#158Widely used chemical *(that was generally phased out in the 70s) linked to Parkinson's. Still important, but you don't need to start searching product labels in 2023 for it.
It's still available in India for about 1$ per kg, MOQ 100kg. https://dir.indiamart.com/search.mp?ss=Trichloroethylene
If it's so cheap, and available in such large quantities, it's definitely getting used today, in massive quantities, in some parts of the world.
Re: Widely used chemical strongly linked to Parkinson’s disease
#159Earlier quoted context omitted.
It's worth noting that almost all decaffeinated coffee is made using water as the solvent. Even 30 years ago this was true.
This isn't really true, there are a few different methods to decaffeinating coffee beans: "Like regular coffee, decaf coffee begins as green, unroasted beans. The hard beans are warmed and soaked in liquid to dissolve and remove the caffeine in one of four ways: using water alone, using a mixture of water and solvents (most commonly methylene chloride or ethyl acetate) applied either directly or indirectly, or using…
We drink a lot of decaf and I email roasters before ordering to see what method they use (even though it's stated that methylene chloride is "totally safe"). It seems most commercially available beans are processed via this company: https://en.descamex.com.mx/ (which does both: https://en.descamex.com.mx/mountainwaterprocess)
Even our local coffee roaster replied and said they only use Swiss water process on their more expensive organic beans - the rest of their lineup uses MC.
Re: Widely used chemical strongly linked to Parkinson’s disease
#160Earlier quoted context omitted.
We’d still be using carbon tetrachloride which is even more toxic? TCE was a safer alternative.
Safer? CC4 decomposes into phosgene at high (about 250 Celcius) temperature, which is why using it in fire extinguishers was a bad idea but TCE does that when simply exposed to light, at room temperature. And if those LD/LC numbers that I'm looking at are correct, TCE is actually slightly more toxic.
Carbon tetrachloride is used in research to reliably create liver damage. It's very toxic.
"Carbon tetrachloride is one of the most potent hepatotoxins (toxic to the liver), so much so that it is widely used in scientific research to evaluate hepatoprotective agents."