October 20, 2009 M-real Alizay: the biggest enzyme conversion unit in the world Operational since the end of 2008 at the M-real Alizay factory, Roquette’s new continuous enzyme conversion unit is the biggest in the world with a capacity of 4,200 kg/hour. For the paper manufacturer, this investment fits in with the strategic switch to the production of recycled fibre-based paper for IT purposes.