Use of Yarrowia lipolytica strains for the treatment of olive mill wastewater

Under the adopted conditions, the reduction of the OMW COD values varied from 1.47% and 41.22% of the initial value. Some strains determined a significant reduction of polyphenol content, while other ones caused its apparent increase. Moreover, some Y. lipolytica strains, isolated from chilled foods, produced the highest citric acid concentrations. These results evidenced that some Y. lipolytica strains are good candidates for the reduction of the pollution potential of OMW and for the production of enzymes and metabolites such as lipase and citric acid.