07-15-04 13:14
No 519549
will i have a triglyceride if i mix 3 parts oil (or butter) in 1 part of glycerol ?
(Newbee)
07-15-04 14:15
No 519553
and if i had a little h2so4 ?
(Chief Bee)
07-15-04 14:20
No 519556
Heating aliphatic carboxylic acids with glycerol (and optionally a catalytic amount of a strong mineral acid) will esterify the components to form various triglyceride esters. The procedure is called Fischer esterification. It will not happen at room temperature (>100°C is suitable) or in aqueous solution.
Neither "oil" or "butter" could be classified as "aliphatic carboxylic acids" though. Stearic acid could, however, and is the main constituent of top-grade old-style candles.
Here is a PPT presentation dealing with the esterification of Glycerol with Stearic Acid, forming Tristearin (a triglyceride ester):
http://www.chem.uic.edu/wardrop/teaching
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(Newbee)
07-15-04 14:36
No 519565
thank you.
You will take me for a fool but i don't understand something,
Do fatty acids that are in oil (corn oil for example) are separated(one by one) OR are they assembled together in complexes (triglycerides) ?
please repond
(Chief Bee)
07-15-04 15:16
No 519575
Both vegetabilic oils and animal fats come as triglyceride molecules: http://users.rcn.com/jkimball.ma.ultrane
Free fatty acids are relatively uncommon to find in large amounts in nature: http://en.wikipedia.org/wiki/Fat
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