What happens when a cis fat is partially hydrogenated to a trans fat?

What happens when a cis fat is partially hydrogenated to a trans fat?

This is the result of an unsaturated fat which is normally found as a cis isomer converts to a trans isomer of the unsaturated fat. Most of the trans fatty acids (although chemically still unsaturated) produced by the partial hydrogenation process are now classified in the same category as saturated fats.

Is trans fat formed during partial hydrogenation?

Trans fats may be monounsaturated or polyunsaturated. The production of trans fats is a result of partial hydrogenation. The process of hydrogenation consists of chemically adding atoms of hydrogen to cis unsaturated fat, eliminating the double bonds between carbon atoms and making them saturated.

How do trans fats differ from cis fats?

Cis fats have hydrogen atoms bound on the same side of the carbon in the fatty acids, which gives the chains a bend, and causes the fat to be liquid at room temperature. In a trans fat, the hydrogen atoms are bound on opposite sides of the carbon in the fatty acids, giving the acids a straight structure.

What is the difference between cis and trans configurations in unsaturated fatty acids?

The key difference between cis and trans fatty acids is that the cis fatty acids have two hydrogen atoms attached to the double bond in the same side of the carbon chain whereas the trans fatty acids have the two hydrogen atoms bonded to the double bond in the opposite sides of the carbon chain.

What are examples of trans fat?

Trans fat in your food

• Baked goods, such as cakes, cookies and pies.
• Shortening.
• Microwave popcorn.
• Frozen pizza.
• Refrigerated dough, such as biscuits and rolls.
• Fried foods, including french fries, doughnuts and fried chicken.
• Nondairy coffee creamer.
• Stick margarine.

What food is high in trans fat?

What happens to trans fat in partial hydrogenation?

Trans Fat: When naturally occurring unsaturated fatty acids are altered by partial hydrogenation, they are converted to saturated fatty acids, which have the effect of straightening the chains and changing the physical properties.

What’s the difference between cis and trans fatty acids?

Fatty acids can differ in shape (arrangement of the atoms around double bonds in the chain) with the two major categories referred to as ‘ cis ’ and ‘ trans ’ isomers (Figure 1). Naturally occurring fats and oils normally only contain cis fatty acids.

How are trans fatty acids produced in the body?

Trans fatty acids are geometric isomers of cis fatty acids. They can be produced through the bio-hydrogenation of fat by microbial action in ruminant animals [125] or by industrial hydrogenation of vegetable oils [ 126 ].

What makes unsaturated fatty acids cis in structure?

Chemical Structure. In unsaturated fatty acids, the carbon atoms that are missing a hydrogen atom are joined by double bonds, rather than single bonds, so that each carbon atom participates in four bonds. If the hydrogen atoms are on the same side of the double bonds of the carbon chain then it is said to be in “cis” configuration.