What You Need to Know
During aging, proteolytic enzymes from starter and adjunct cultures hydrolyze casein into peptides and free amino acids, while lipases liberate fatty acids that oxidize into volatile aroma compounds. The growth of specific molds and surface bacteria further modifies pH and produces sulfurous and ketonic notes, defining the cheese’s character.
The Science
Primary Reaction
Proteolysis and lipolysis of casein and milk fat