Sciencemadness Discussion Board

Arachidonic acid

Comedy - 3-3-2007 at 02:47

Does anyone know a facile extraction (or synthesis) of arichidonic acid from natural sources? Supposedly it's only in animal fats. Is it in sufficient amounts to make a synthesis worththe effort? Has anyone on this board ever tried this?

JohnWW - 3-3-2007 at 04:26

Its name suggests that arachidonic acid (which has 4 conjugated double bonds) might be in peanut oil (arachis species), along with arachic (less unsaturated) and arachidic (saturated) acids, as the triglycerides. These are 20-carbon straight-chain acids. However, they would be only minor constituents of peanut oil, which is mostly oleic acid (60%), linoleic acid (20%) (both 18-C unsaturated), stearic acid (5%) (18-C saturated), palmitic acid (7%) (16-C saturated).

Comedy - 3-3-2007 at 04:34

I looked it up, and unfortunately the names are only similar because they both have 20 carbon atoms, there is only a trace amount in peanut oil.

not_important - 3-3-2007 at 07:26

The building of long chain unsaturated fatty acids in the test tube is a pain. Best way often is isolation and selective culturing of some microorganism, or gene splicing into a friendly bacteria.

Also see

Arachidonic acid and methods for its isolation from natural materials
http://www.springerlink.com/content/m08287w7817j31r9/


An isolation procedure for arachidonic acid producing Mortierella species
http://www.springerlink.com/content/t4568840h81w2282/

Attachment: The isolation of arachidonic acid from brain tissue.pdf (340kB)
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