Lignocellulosic biomass (LCB): a potential alternative biorefinery feedstock for polyhydroxyalkanoates production

Huda Sultan Al-Battashi, Neelamegam Annamalai, Nallusamy Sivakumar*, Saif Al-Bahry, Bhumi Nath Tripathi, Quang D. Nguyen, Vijai Kumar Gupta

*Corresponding author for this work

Research output: Contribution to journalReview article

12 Citations (Scopus)

Abstract

Polyhydroxyalkanoates (PHAs) are one of the most promising, degradable and eco-friendly alternatives to fossil fuel-based plastic. Nevertheless, PHA derived from edible sources is a relatively easier process than using other resources. Cost of raw material is being considered as a significant constraint for sustainability of industrial bioplastic production. In recent days, lignocellulosic biomass (LCB) in the form of waste residue generated from agriculture, forestry, energy crop system, marine biomass, industrial and municipal solid waste has gained great attention as it is the most abundant feedstock worldwide and supports the sustainable production of PHA. However, the conversion efficiency and PHA yield vary significantly based on the source and nature of LCB due to their content distinction. The complex structure of LCB, mainly composed of cellulose, hemicellulose, and lignin, makes it challenging to be depolymerized. Therefore, the processes required to utilize LCB for production of PHA are covered in this review including pretreatment, hydrolysis, fermentation, and the associated difficulties during the process development. In addition, several attempts made to exploit LCB as a feedstock for PHA production were also discussed in order to improve the overall conversion process.

Original languageEnglish
Pages (from-to)183-205
Number of pages23
JournalReviews in Environmental Science and Biotechnology
Volume18
Issue number1
Early online date2 Jan 2019
DOIs
Publication statusPrint publication - 15 Mar 2019
Externally publishedYes

Keywords

  • Detoxification
  • Fermentation
  • Hydrolysis
  • Lignocellulosic biomass
  • Polyhydroxyalkanoate
  • Pretreatment

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