Lipid Modification and Hydrogenation
No description yet. This curated deck is ready for daily study.
Card preview (17)
what is hydrogenation
the removal of carbon-carbon double bonds through the addition of hydrogen
what is the mechanism of hydrogenation
the double bond between two CH molecules is absorbed to form the catalyst a H atom from the catalyst is transferred to one of the C atoms of the double bond the other C atom binds to the catalyst the other H atom is transferred from the catalyst, which frees a saturated product the loss of a H atom to the catalyst frees a geometric isomer
what are the disadvantages of hydrogenation
may produce a trans fatty acid- which cannot be controlled
what are the uses of hydrogenation
make up products plastic fats
which countries banned trans fat
Denmark Switzerland
what is the name for oils and fats that have been hydrogenated
hydrogenated vegetable oils (HVO)
what are the factors that influence hydrogenation
temperature pressure catalyst concentration agitation
what does hydrogenation do to the fat/ oil in terms of MP
increases MP and alters its crystalline structure
what is hydrogenation used for
to convert vegetable oil to plastic fats
what does hydrogenation improve
stability resistance to oxidation - degree of unsaturation is reduced
what is produced as a result of hydrogenation
hydrogenated vegetable oils and trans fats
what are the results of a high temperature during hydrogenation
high selectivity high chance of FA formation
what are the results of high pressure during hydrogenation
low selectivity low chance of FA formation
what are the results of a high catalyst concentration during hydrogenation
high selectivity high chance of FA formation
what are the results of a high agitation rate during hydrogenation
low selectivity low chance of FA formation
does hydrogenation convert natural lipids to forms that can be used or not used in food
used
what does the modification of lipids do in terms of versatility, stability and the economy
makes them more stable, economic and versatile