Oil production by Mortierella isabellina from whey treated with lactase

- De-proteinized whey can be utilized as a feed stock for production of microbial oil.
- DP-whey treated with lactase resulted in the highest microbial oil concentration.
- A higher biomass and oil were obtained with higher initial lactose concentrations.
- The best kinetic parameters were determined in DP-whey treated with lactase.
- The maximum γ-linolenic acid content of 5.48% was obtained at the highest lactose concentration in DP-whey without enzyme addition.