Butyrate as preferred substrate for polyhydroxybutyrate production

- Butyrate is to be preferred over acetate as substrate for PHB production.
- P. acidivorans dominates enrichment cultures on both acetate and butyrate.
- Higher PHB production rate and higher PHB yield on butyrate than on acetate.
- Accumulation of 83-85 wt.% PHB in the presence of ammonium.
- To optimize PHB production: optimize butyrate production in pre-fermentation.