PHA composition was found to be directly related to the composition
of the substrate used. Experiments were conducted to know
the difference in PHA composition by using only acetate (20 g/l) as
carbon source, and mixture of acetate–propionate (19:1) as carbon
source in SW. Experiments with only acetate produced homopolymer
P3HB, experiments with acetate–propionate mixtures
produced co-polymer P(3HB-co-3HV).