Taste - is the sensory receptor which information is perceived through taste buds that are located on tongue which produce taste sensation such as saltiness, sweetness, bitterness and sourness.
People use the tip of the tongue to taste sweet things.
the back of the tongue to taste bitter things
the sides to taste sour things
salty things are tasted up front and along the surface
The sense of taste has significant when consumers want to ensure products ( particularly food & beverages) have the quality that they want.