Under the condition favorable for PHA synthesis,
PHA content shows net accumulation. Obviously, the increase of
PHA content (29.75–59.18%) indicated that the bacterial consortium
presented high PHA-producing ability in such S-SFL substrate.
The maximal PHA content was obtained at 36 h with 59.18% of the
cell dry weight. It is known that the higher initial carbon concentration
is favorable for PHA accumulation while the higher initial
nitrogen concentration has the opposite effect