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Free fatty acids are those long chain acids (fatty acids) that are not conjugated or attached to anything else. That is, they are "free", and not bound. Fatty acids that are attached to, for example, glycerol, are not longer considered "free". They can also be bound to proteins, like albumin, again, making them not "free", because they are bound.

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Q: What is the difference between fatty acids and free fatty acids?
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Difference between acid value and free fatty acid?

Free fatty acids are created by separating fatty acids from the fat molecule. To find the ration you must add a solvent agent. The lower the ratio is the better the storage and shelf life of the respective oil or fat will be.


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