Hurray, another topic where I'm qualified!
> Does anyone know of any biological use in humans or other creatures for any fatty-acid esters of other alcohols than glycerol?
* Wax esters. The biggest use here is that they're they primary component of beeswax, but they're also used elsewhere to provide buoyancy, prevent water loss in leaves, etc. Their use here seems to be mostly structural. The jojoba nut apparently uses them as a means of storing fatty acids for energy however.
* Since fatty acids are carboxylic acids, they can also form into thioesters -- coenzyme a thioesters for example help transport fats between the cytoplasm and mitochondria so they can actually be metabolized.
Aren’t there fatty-acid esters of sphingol that are important in vertebrate nervous systems that are technically waxes?
I seem to recall that but I can’t find a reference; I may be mis-spelling something.
Olestra is a glucose with five or six or so fatty-acids esterized onto it.
You could do something similar with other monosaccharides or sugar-alcohols.
I didn’t know that about thioesters! Thanks!
It seems like most, or at least many, fatty-acid esters of other-than-glycerol alcohols, are called “waxes” (at least sometimes by some people). True?
Edited March 4th
I forgot to alert you in my previous reply!
Posted March 6th