Blue cheese of blue veins. The distinctive flavor and aroma of blue cheese arises from methyl ketones (including 2-pentanone, 2-heptanone, and 2-nonanone) which are a metabolic product of "Penicillium roqueforti". These compounds are not formed in other types of cheese fermented by bacterial acidification alone. In the European Union, many blue cheeses, such as Cabrales, Danablu, Gorgonzola, Roquefort and Blue Stilton, carry a protected designation of origin, meaning they can bear the name only if they have been made in a particular region. Similarly, individual countries have protections of their own such as France's Appellation d'Origine Contrôlée and Italy's Denominazione di Origine
Nabulsi cheese Nabulsi cheese Nabulsi (or naboulsi) is one of a number of Palestinian white brined cheeses made in the Middle East. Its name refers to its place of origin, Nablus and it is well known throughout the West Bank and surrounding regions. Nabulsi, along with Akkawi cheese are the principal cheeses consumed in Jordan. Produced primarily from sheep milk, goat's milk is also used. Nabulsi cheese is white and rectangular in shape. It is semi-hard with no gas holes. It becomes soft and elastic when heated. It is a typical ewe's or goat's milk cheese, but is traditionally flavored with mahleb