1) Particular components are directly connected with well-defined
physiological effects and the health benefit is linked to a single
product, thus it is expensive affair.
2) It creates novelty in food without necessarily changing the sensory
properties of food.
3) As the manufacture of functional food, this component needs to be
added, removed or modified it is perceived as less natural product
to consumer (Urala, & Lahteenmaki, 2004).