Multiple Choice
Provide the common name of the fatty acids produced from the enzymatic hydrolysis of the following triacylglycerol.
23. Lipids
Triacylglycerol Reactions: Hydrolysis
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The salt of a fatty acid has its ending of “ic acid” changed to “ate”. Based on this information provide the name of the salt created from the following saponification reaction.
A
Potassium Laurate
B
Sodium Oleate
C
Potassium Myristate
D
Potassium Lactate
Verified step by step guidance1
Identify the structure of the triglyceride in the image. It consists of three fatty acid chains esterified to a glycerol backbone.
Recognize that saponification involves the hydrolysis of the ester bonds in the triglyceride using a strong base, such as KOH, to form glycerol and the salt of the fatty acids.
Determine the fatty acids present in the triglyceride. Each fatty acid chain is a long hydrocarbon chain with a carboxylic acid group at one end.
Convert the carboxylic acid group of each fatty acid to its corresponding salt form by replacing the 'ic acid' ending with 'ate'. For example, if the fatty acid is myristic acid, the salt would be myristate.
Identify the cation from the base used in the reaction. Since KOH is used, the cation is potassium, resulting in the formation of potassium salts of the fatty acids.
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