Collagenase AF-1 GMP Grade is derived from C. histolyticum using a production process completely free of any animal based components. Thus, any risk of transmission of potential animal-derived pathogens is excluded. This highly purified collagenase, often in combination with Neutral Protease AF GMP Grade (Cat. No. N0003553), is suitable for the dissociation of sensitive cells from several tissues. The animal-free enzymes have been shown to be highly effective for the isolation of islets of Langerhans from human pancreas intended for transplantation and stromal vascular fraction (SVF) from adipose tissue and tumor cells.