A review on the conversion of volatile fatty acids to polyhydroxyalkanoates using dark fermentative effluents from hydrogen production

Gopalakrishnan Kumar, Vinoth Kumar Ponnusamy, Rahul R. Bhosale, Sutha Shobana, Jeong Jun Yoon, Shashi Kant Bhatia, J. Rajesh Banu, Sang Hyoun Kim

Research output: Contribution to journalReview article

8 Citations (Scopus)


The production of bio/microbial-based polymers, polyhydroxyalkanoates (PHAs)from volatile fatty acids (VFAs)of dark fermentative effluents in the bio-H2 reactor is being paid attention, owing to their commercial demand, applications and as carbon as well as energy storage source. Since, they are the cheap precursors for such valuable renewable biopolymers which all possess the properties; those are analogous to the petro-derived plastics. Several studies were stated, related to the consumption of both individual and mixed VFAs for the potential PHAs production. Their biodegradability nature makes them extremely desirable alternative to fossil-derived synthetic polymers. In this regard, this review summarizes the use of bio-based PHAs production via both microbial and biochemical pathways using dark fermentative bio-H2 production from waste streams as feedstock. Furthermore, this review deals the characteristics, synthesis and production of the bio-based PHAs along with their co-polymers and applications to give an outlook on future research.

Original languageEnglish
Article number121427
JournalBioresource technology
Publication statusPublished - 2019 Sep


All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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