What makes trans fats more harmful than saturated ones?
WEBOct 12, 2016 · Anyway: Trans-fats are thermodynamically more stable, and thus less useful synthetically. That's why evolution has mostly gone for the cis-fatty acids. $\endgroup$ – Karl
hydrogen bond - Why are trans fats worse than saturated fats ...
WEBFeb 25, 2016 · Mixed fats that contain PUFAs (polyunsaturated fatty acids) and MUFAs (monounsaturated fatty acids) can be hydrogenated to turn some of the UFAs into saturated fatty acids. This prevents rancidity and raises the smoke point of the fat because PUFAs are the easiest to go rancid, and to smoke under heat. There are two general instances in …
Why unsaturated fats are usually cis? - Chemistry Stack Exchange
WEBApr 8, 2015 · Nature produces cis fats exclusively (someone may prove me wrong with some weird example.) This is why unsaturated fats such as vegetable oil have lower melting point than saturated fats of the same MW (the cis double bonds lead to a more compact molecule which gets less tangled with its neighbours.) The reason nature produces cis …
organic chemistry - Trying to understand the causes and …
WEBFeb 25, 2016 · No, trans fats rarely occur in nature, and are generally thought to be very unhealthy. No, like all neutral atoms, hydrogen atoms attract each other, albeit weakly (by London Dispersion Forces). That's why neatly stacked saturated fats are solid.
Why do (did) they make trans fat instead of using saturated fat?
WEB$\begingroup$ they don't deliberately make trans fats. The reactions that partially hydrogenate polyunsaturated fats cause isomerisation leading to unnatural trans fats. This creates the desired properties of solid rather than liquid fats and nobody worried about it until trans fats were found to be much less healthy.
When disqualifying trans fat, are we qualifying cis-fat as healthy?
WEBApr 8, 2015 · Trans fat also occurs naturally in milk, for example fats of vaccenic acid. Also, since a fatty acid can have more than one double bond, it can be both cis and trans, for example fats of Rumenic acid found in milk. When disqualifying trans fat, are we qualifying cis-fat as healthy? Cis-fat can also have negative health consequences.
Saturated vs unsaturated fats - Structure in relation to room ...
WEBFats, which are mostly from animal sources, have all single bonds between the carbons in their fatty acid tails, thus all the carbons are also bonded to the maximum number of hydrogens possible. Since the fatty acids in these triglycerides contain the maximum possible amount of hydrogens, these would be called saturated fats .
Why do double bonds cause kinks in fatty acid chains?
WEBFeb 3, 2019 · $\begingroup$ A cis-bond itself is a zig-zig (or U-shaped) while a trans-bond is zig-zag (just like a single bond in staggered antiperiplanar conformation). So yes, compared to the trans-bond you are swapping the single bonds to hydrogen and to the carbon on one side of the double bond. $\endgroup$ –
molecules - What exactly happens when vegetable oil is partially ...
WEBFeb 26, 2016 · The reason why fully hydrogenated fats don't have this issue is because they're produced with an excess of hydrogen. Yes, some of the double bonds react part way and then reverse to trans fats, but the catalyst is not stereo- and regio-selective, and it's able to convert the trans bonds to saturated bonds just as easily as the cis bonds.
fats - Why is there a difference in available energy in saturated vs ...
WEBTherefore, an enzyme coupled reaction that requires energy (in the reductant form $\ce{NADPH}$) is needed to make the molecule a trans fat with a shift in bond position in order to continue oxidizing the molecule completely. $\ce{NADPH}$, usually is defined as $\ce{2.5ATP}$ equivalents [1] and this extra energy expenditure in shifting the ...