One
replicate from each set was analyzed to observe the trends of the lipid production by the mixed species culture growing on three different substrates. As the first replicate
indicates the production of alkanes along with other lipid classes, further analysis o f other
two replicates from each set is required to observe significant production of alkanes. The
mixed species culture showed highest biomass and carbon dioxide production on UDA
(set 1), UDA+PDB (set 2) and PDB (set 3). Chemical analysis was performed on these
samples during the exponential and stationary growth phases. The extracellular samples
were only selected from exponential phase o f mixed culture growing on UDA+PDB and
stationary phase of mixed species culture growing on PDB as these cultures produced
highest amount o f biomass, carbon dioxide and lipids.