1. 
   Nootkatone
   Nootkatone is a natural organic compound and is the most important and expensive aromatic of grapefruit. It is a sesquiterpene and a ketone. Nootkatone was previously thought to be one of the main chemical components of the smell and flavour of grapefruits. In its solid form it is usually found as ...
   Found op http://en.wikipedia.org/wiki/Nootkatone
   
   
2. 
   nootkatone
   Type: Term Pronunciation: nō-ot′kă-tōn Definitions: 1. Yellow liquid or crystal with a citrus odor, can be isolated from grapefruit.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=61005
   
   

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