Use of exogenous streptokinase to accelerate proteolysis in Cheddar cheese during ripening Vivek K. Upadhyay, Maria J. Sousa, Peter Ravn, Hans Israelsen, Alan L. Kelly and Paul L.H. McSweeney Lait, 84 6 (2004) 527-538 Published online: 22 October 2004 DOI: 10.1051/lait:2004022