[micromelissa]

I did an experiment and got the following Iodine values:

Olive Oil: 74
Butter: 24

So then I looked up literature values:

Olive Oil: 80-88
Butter: 26-42

My question is, why do these values differ? It's obvious that the lipids in my experiment are showing a higher degree of saturation because of the lower values.

Is there a factor that would cause my samples to have less double bonds?
I was thinking it was because my experiment ran for an hour to complete.

Appreciate it if someone could point me in the right direction.

[Archer]

I did an experiment and got the following Iodine values:

Olive Oil: 74
Butter: 24

So then I looked up literature values:

Olive Oil: 80-88
Butter: 26-42

My question is, why do these values differ? It's obvious that the lipids in my experiment are showing a higher degree of saturation because of the lower values.

Is there a factor that would cause my samples to have less double bonds?
I was thinking it was because my experiment ran for an hour to complete.

Appreciate it if someone could point me in the right direction.

Do you have units to go with those values?

[DrCMS]

I did an experiment and got the following Iodine values:

Olive Oil: 74
Butter: 24

So then I looked up literature values:

Olive Oil: 80-88
Butter: 26-42

My question is, why do these values differ?

Poor experimentation in one way or another would be my guess.

It's obvious that the lipids in my experiment are showing a higher degree of saturation because of the lower values.

No that is not the obvious conclusion from the data presented. Your apparent results are lower than those quoted in the literature but that does not mean your samples actually had higher degree of saturation than expected.

Is there a factor that would cause my samples to have less double bonds?

Yes but have you ruled out the experimental procedure being the cause of the difference?

How many repeats have you done?
What is the spread of values obtained?
How many times have you done this experiment before?
How old were the samples?
How were they stored?