Grapefruit, also known as grapefruit or pamplemusa, is the homonymous fruit tree belonging to the Citrus kind of the Rutaceae family. This family contains over 1,600 species. The Citrus botanic kind is the most important of the family and it consists of about 20 species. All of them edible fruits abundant in vitamin C, flavonoids and essential oils. The fruits, called Espérides have the peculiarity that its peel is formed by numerous vesicles full of juice.