hyfalcon
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 1003
Registered: 29-3-2012
Member Is Offline
Mood: No Mood
|
|
chlorogenic acid
I don't know a rat's a** about organic chemistry, but I was wondering if someone could come up with an extraction for green coffee beans that would
liberate the chlorogenic acid from them. My forte is in inorganic reactions. I don't even know where to start with this. Would an aqueous
extraction be best or would I be better off with a dry grind and then extract with whatever solvent is relevant?
|
|
Ozone
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 1269
Registered: 28-7-2005
Location: Good Olde USA
Member Is Offline
Mood: Integrated
|
|
see:
http://pubs.acs.org/doi/abs/10.1021/jf60114a017
I'd get full text, but I have moved and need to renew my ACS membership.
Cheers,
O3
-Anyone who never made a mistake never tried anything new.
--Albert Einstein
|
|
Ozone
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 1269
Registered: 28-7-2005
Location: Good Olde USA
Member Is Offline
Mood: Integrated
|
|
See also acetone:water 1:2,
http://www98.griffith.edu.au/dspace/bitstream/handle/10072/1...
In my experience, the compound is labile and oxidizes easily in air. Most of my attempts to isolate it yielded the cleaved-off caffeic acid.
O3
-Anyone who never made a mistake never tried anything new.
--Albert Einstein
|
|
Sublimatus
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 108
Registered: 8-6-2011
Member Is Offline
Mood: No Mood
|
|
Full paper is attached.
Attachment: Isolation of Chlorogenic Acid and Its Isomers from Coffee.PDF (505kB) This file has been downloaded 518 times
|
|
zoombafu
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 255
Registered: 21-11-2011
Location: U.S.
Member Is Offline
Mood: sciencey
|
|
http://www.sciencedirect.com/science/article/pii/S0308814611...
Here's and abstract for you to read
|
|
hyfalcon
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 1003
Registered: 29-3-2012
Member Is Offline
Mood: No Mood
|
|
Boy, my bedtime is all taken up tonight! Thanks for the replies!
I'm glad all I want to do is get the compound and it's isomers. I don't want to completely isolate it, just extract them.
[Edited on 2-8-2012 by hyfalcon]
|
|
Nicodem
|
Thread Moved 2-8-2012 at 06:48 |