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Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. The process is commonly employed to reduce or saturate organic compounds. Hydrogenation typically constitutes the addition of pairs of hydrogen atoms to a molecule, generally an alkene. Catalysts are required for the reaction to be usable; non-catalytic hydrogenation takes place only at very high temperatures. Hydrogen adds to double and triple bonds in hydrocarbons.
Because of the importance of hydrogen, many related reactions have been developed for its use. Most hydrogenations use gaseous hydrogen (H2), but some involve the alternative sources of hydrogen, not H2: these processes are called transfer hydrogenations. The reverse reaction, removal of hydrogen from a molecule, is called dehydrogenation. A reaction where bonds are broken while hydrogen is added is called hydrogenolysis, a reaction that may occur to carbon-carbon and carbon-heteroatom (oxygen, nitrogen or halogen) bonds. Hydrogenation differs from protonation or hydride addition: in hydrogenation, the products have the same charge as the reactants.
An illustrative example of a hydrogenation reaction is the addition of hydrogen to maleic acid to form succinic acid. Numerous important applications of this petrochemical are found in pharmaceutical and food industries. Hydrogenation of unsaturated fats produces saturated fats and, in some cases, trans fats.
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Does Hydrogenation increase a fat's susceptibility to rancidity and shortens its shelf life?
Yes, hydrogenation of fat does increase its shelf life. The hydrogenation of the unsaturated fats usually produces the saturated fats.
Is margarine made from plastic?
No. It is made by the hydrogenation of oils or fats.
What has the author H B W Patterson written?
H. B. W. Patterson has written: 'Hydrogenation of fats and oils' -- subject(s): Analysis, Edible Oils and fats, Hydrogenation, Oils and fats, Oils and fats, Edible 'Bleaching and purifying fats and oils' -- subject(s): Oils and fats, Bleaching, Purification
Unsaturated fats may be turned into saturated fats by a process called?
hydrogenation for Plato the answe is C :P
What is it called When hydrogen has been added to unsaturated fats?
When hydrogen has been added to unsaturated fats, it is called hydrogenation. This process converts unsaturated fats into saturated fats, making them solid at room temperature. However, it can also create trans fats, which are considered unhealthy.
If Trans fats are inadvertently formed during the hydrogenation of vegetable oils is the hydrogenation of oils an oxidation or reduction reaction?
The parital hydrogenation of oils and fats reduces the cis double bonds in fats to give them a more solid form at room temperature. As the reduction process takes place at high temperatures, there is thermal isomerization of some of the cis bonds to their trans form.
Hydrogenation of vegetable oil means that the final product is what?
high in polyunsaturated fats
What process is used to convert polyunsaturated oils into saturated fats?
olive and canola oils are examples of saturated fats
Why are hydrogenation reactions used in foods?
Hydrogenation reactions are used in foods to convert unsaturated fats into saturated fats, which helps improve the stability and shelf life of the product. This process also creates a firmer texture and enhances the flavor of the food product. However, hydrogenation can also produce trans fats, which have been linked to negative health effects.
Does water cause hydrogenation?
Water does not cause hydrogenation. Hydrogenation is a chemical process where hydrogen atoms are added to unsaturated fats to make them more saturated. It is typically done using hydrogen gas in the presence of a catalyst, such as nickel or palladium.
In the process of fat hydrogenation hydrogen atoms are added to which part of the molecule?
Hydrogen atoms are added to the double bonds in unsaturated fatty acids during the process of fat hydrogenation to saturate the bonds and convert the unsaturated fats into saturated fats.
When liquid oils are turned into solid fats through a process?
This process is called hydrogenation, where hydrogen gas is added to liquid oils at high pressure and temperature to create saturated fats. This helps improve the consistency and stability of the oil for use in food products such as margarine and baked goods. However, this process also creates trans fats, which are considered unhealthy and should be limited in the diet.
