Article InfoExtra cellular lipase producing bacteria were isolated from different oil mill soils and screened on tributyrin and spirit blue agar medium. Lipases have become an integral part of the modern food industry. The use of enzymes to improve the traditional chemical processes of food manufacture. Lipases have been used for the degradation of wastewater contaminants such as olive oil from oil mills. The microbial treatment of waste from fast-food restaurants for the removal of fats, oils and greases. They cultivated pure and mixed microbial flora known to produce lipases and other enzymes. Acinetobacter sp. was the most effective of the pure cultures, typically degrading 60-65% of the fatty material.