Lipids - Review

7 important questions on Lipids - Review

Which of these components is a saponifiable fat?

The one with the ester group, sterol ester

What compounds to you have after the saponification reaction?

All ester bonds are broken.

1. Which structure is more realistic: the left or the right picture?

The left, normally this is a cis double bond and therefor the fattyacid curls up.
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What are the two short notations for the fatty acid shown next to this picture.

18:3ω3 or 18:3,9c,12c,15c

If an oil contains 4 different fatty acids, how many different TAGs can be formed with these (in theory)?

You have 4 different fatty acids and 3 different positions so:
4^3=64

How  many of the triglicerides have 2 linoleic acids?

around 65% and that is why it is a liquid.

What is a pentadiene system?

5 carbons with 2 double bonds.

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