Penicillin-G amidase enzyme is one of the enzyme outside the cell,which is secreted by the cell and which is from Bacillus Megaterium through second fermentation.

• 青霉素酰化霉是由巨大芽孢杆菌经二级发酵,在生产过程中分泌到细胞体外的一种胞外酶。