An extracellular lipase was produced in solid state cultures of Yarrowia lipolytica CECT 1240 using nylon sponge and several food and agroindustrial wastes (barley bran and triturated nut) as, respectively, inert support and support substrate. The highest activity was obtained with triturated nut (23 kU l(-1)) followed by sunflower oil-soaked barley bran (21 kU l(-1)). The activities were 5 fold greater those obtained in the control cultures with just inert support.