Polyhydroxyalkanoate production from fermented volatile fatty acids: Effect of pH and feeding regimes

- Mixture of sludge and food waste were fermented to obtain VFAs.
- VFA production and VFAs/SCOD ratio was the highest at an initial pH of 9.0.
- The fermentation liquid at pH 9.0 was a suitable carbon source for PHA biosynthesis.
- Continuous pulsed feeding had the highest PHA synthesis rate of 64.5%.