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
Muggiano (district of Milan) Muggiano (district of Milan) Muggiano ( ) is a district ("quartiere") of Milan, Italy, part of the Zone 7 administrative division of the city. It is located in western periphery, bordering on the "comune"s of Cesano Boscone, Cusago, Settimo Milanese, and Trezzano sul Naviglio. Before being annexed to Baggio (in 1869), which in turn was annexed to Milan, Muggiano used to an autonomous comune. The name "Muggiano" is of Roman origin; the place used to be called "Modianus", after the governor of its territory, named "Modius". Until the 1990s, Muggiano was mostly a scarcely populated, rural district, with a landscape