by athan

Share

by athan

Share

FOLIN for Dummies

The NMR method is the only method that can quickly, economically and accurately measure each phenolic compound present in extra virgin olive oil.
Let me give an example so everyone understands what is at stake here. Olive growers, olive oil marketers and consumers listen up!
Folin measures total phenolic content by converting them into caffeic acid equivalents. HPLC measures phenolic concentration by converting the phenolic compounds to their simplest forms of hydroxytyrosol and tyrosol equivalents. That is because they cannot measure each phenolic compound on their own. I will give you an example of what this means…
If you have a box of vegetables and to weigh them you only had chickens. You know how much each chicken weighs. But you have no idea how much the box full of vegetables weigh.

So, you place the box of vegetables (lettuce, carrots, broccoli etc.) on one end of the scale and then in the other end of the scale you place a box and fill it with chickens until you get an equal weight. Then you count the number of chickens to calculate the concentration of vegetables there are in one box based on chicken equivalents in the other box. But its not always the same weight because it depends on how much the chickens move or jump around in the box. The more they move and jump around the less accurate the result is each time. Same with the phenolic compounds they react differently to the chemicals used by Folin and HPLC depending on their concentration.
Does this technique of measuring vegetables by their chicken equivalents tell you how many carrots there are in the box? What if you were interested in carrots? Would this method help you to buy carrots? NO of course not then why-o-why the so-called experts insist on measuring carrots, lettuce and broccoli as if they are chickens?
So instead of using the NMR to accurately measure the concentration of oleocanthal and sell at a higher price these experts want us to use chicken equivalents. Using chicken equivalents makes as much sense as Folin using caffeic acid equivalents and HPLC using hydroxytyrosol and tyrosol equivalents to measure phenolic compounds. ENJOY

STAY IN THE LOOP

Subscribe to our free newsletter.

Don’t have an account yet? Get started with a 12-day free trial

Leave A Comment

Related Posts