In general, intracellular free fatty acidspresented the largest content o f all the lipid classes (>200 mg). Most of the intracellular
lipids (87%) were found as free fatty acids when fungal cells were grown under
UDA+PDB and UDA (Table 9). The mixed species culture produced 2.7 times more
intracellular hydrocarbons when grown in UDA+PDB than when grow in UDA (Table
9). The amount of hydrocarbons allocated intracellularly was equivalent to > 2% of the
total lipid content measured under the UDA+PDB or UDA substrate treatments (Table 9).
When PDB is used as the carbon substrate, mixed species culture produces the same
content o f fatty acids and hydrocarbons (1.5 mg) during the exponential phase.