Triglycerides and Esters
Part of the Food Chemistry and the Lab section of Coddy's Chemistry journey. Lesson 7 of 27.
Glycerol has three OH groups. Three fatty acids join to it.
Glycerol has three OH groups, one for each fatty acid
OH + COOH gives an ester group, C(=O)-O-C, and water. A fat with three ester groups is a triglyceride.
An ester group: C(=O)-O-C
Small esters smell of fruit: methyl butanoate smells of apples.
Challenge
Methyl butanoate gives apples part of their smell. Mark its functional group.
Try it yourself
Work it out on the board
Test yourselfThis lesson includes a short quiz. Start the lesson to answer it and track your progress.