Desmolase

• Cholesterol side-chain cleavage enzyme, also called 20,22-desmolase; converts cholesterol to pregnenolone.
• 17,20-Desmolase, also called CYP17A1 or 17α-hydroxylase; converts pregnenolone to 17α-hydroxypregnenolone, progesterone to 17α-hydroxyprogesterone, and corticosterone to aldosterone.
• Diacetyl desmolase is added to beer late in the brewing process to remove diacetyl flavor that may have accumulated during processing.